This will prevent weak stems and other issues. Placing your sunflowers in a tall vase or pot might be all they need to add support to their long stems and stop them from drooping. Water with a sprinkle hose or a watering can rosea as the plant grows, begin to widen the area of watering up to around 6-12 inches around the plant to ensure it reaches the wider root system. Depending on your location & how much rain you've been receiving, I'd water only when the soil feels dry. And if we’ve had a really hot day, then a secondary watering in the evening will do them the world of good during the night. The reason for plants affected by too much water is that plants need to breathe. However, you can supplement their water during very dry periods by giving the ground around the plants a deep soak. Sprinkle a few drops water on the center of the head of the flower.4. Cut through the stem of the selected flowers with the shears. Use a tall vase to prevent wilting near the sunflower head and fill with water. | Copyright© 2018-2019 shesaidsunflower.com. Avoid adding any too close to the plant’s base. © Copyright 2020 Hearst Communications, Inc. The planting of sunflowers, along with mustard seeds, flax seeds, and soybeans (which are believed to be equally effective, if not as aesthetically pleasing), is now standard practice in the event of radiation. These tips should add anywhere from 24 to 72 hours to the life of your bouquet.1. Sunflowers thrive in slightly acidic to somewhat alkaline soil (pH 6.0 to 7.5). But of course, we want to ensure we get our sunflower to her maximum potential (well usually!). This annual grows best in a full sun location … Typically, plants need 1 to 2 feet of space, but individual varieties have different space requirements, so check your seed packet. Although sunflowers require a lot of water to germinate, they only require an inch of water per week during the growing season. Wild sunflowers are self-sufficient and don't need intervention to get enough sun and water. When choosing a location, make sure that taller sunflowers are placed in a position where they won’t cast too much shade on shorter flowers, as all sunflowers love the sun. A field of sunflowers (Helianthus annuus) blowing in a summer breeze can evoke a romantic road trip through the south of France or an idyllic impressionist painting. How Do You Revive Wilted Sunflowers? Because they're such sunseekers, it's difficult to grow healthy sunflowers in a bright indoor location. They have long tap roots that need to stretch out; in preparing a bed, dig down 2 feet in depth and about 3 feet across. The sugar will perk them right up!3. Make sure the soil remains moist and well-drained. In general, as long as you water deeply once a week and make sure that the plants get at least an inch of water a week, the plant will do well. But how much sun and water do you need to grow sunflowers in your own garden? Do You Have to Replant Sunflowers Every Year? They need to be, as one of the few flowers that can grow up to 15 feet (4.5m) or higher. Here’s a quick summary guide for you of the above so you can refer back to it if you need to. Immediately placing cut sunflowers in water helps prevent later wilting. Pick in the early morning. Do not water your sunflower if the ground still appears to be moist from the previous watering, Do not water shortly after it has rained sufficiently. Choose a spot with fast-draining, somewhat alkaline soil where the flowers will receive full sunlight, and work in plenty of well-composted manure. At this stage you want the seeds to dry out. Comment document.getElementById("comment").setAttribute( "id", "a9a3f9dc5efc8d4f2b80eeeed187c53c" );document.getElementById("f92d6abd9d").setAttribute( "id", "comment" ); The girl behind shesaidsunflower.com. I’d strongly recommend beginning a daily watering routine from the start with sunflowers, certainly during their early stages until they’re around 2 feet (61 cm) in height. On the plant spectrum, sunflowers are pretty thirsty creatures. Don’t let the soil dry out to a cracking stage either, keep the soil moist. Some varieties, such as swamp sunflower (Helianthus angustifolius), USDA zones 6 through 9, are perennial. As long as there is a sufficient amount of rainwater outside – which is usually a good downpour around 3 times a week, then sunflowers will grow fine. In particular, they like their water routines. She has taken college courses in landscape design and permaculture, and is an avid gardener. Sunflowers need a deep, regular watering. In Comparison with most other plants, yes, sunflowers do need a consistent and plentiful supply of water. Water seedlings every couple of days or more often if conditions are especially hot and dry. Give it a good douse with water, then slowly increase the water quantity gradually to bring it back to life. If you decide to take the challenge, expect a lower yield of blooms. Planting sunflowers from seeds is the best way to encourage a healthy root system that ensures that your specimens get enough water for the entire growing season. Add three teaspoons of sugar to the lukewarm water in your vase, and place the wilted flower in and let it sit. Sunflowers need full sun, which means at least six hours of unfiltered sunlight every day. Let’s look in more detail. For more information, check out my article on over fertilizing plants. Sunflowers aren’t picky but the soil can’t be too compact. This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies. Use a rose on your watering can or a sprinkler on your hose, or you risk washing away too much soil, and especially with young plants as it is gentler on them too. Use a rose on your watering can or a sprinkler on your hose, or you risk washing away too much soil, and especially with young plants as it is gentler on them too. Your email address will not be published. Poke a hole in the growing medium at a depth of approximately twice the length of your seed, cover it with soil and pat the soil firmly to ensure good contact. Due to their rapid growth, they need a minimum of 2 gallons, (7.57 Litres) a week. Mature sunflowers can adapt to drier conditions, as their expansive root systems seek out water underground. The ideal time to water is in the morning, as root rot can set in over cold nights. How much water should you put in a vase only really matters if you’re concerned about getting the most out of your flowers. Before maturity, if the leaves and other areas begin to wilt, or turn brown, then you’re under watering. Petals do inevitably fade eventually when it gets towards the end of its life, but you should normally get a few good weeks of it in its prime. It can grow up to 12 feet tall, although it typically reaches a height of 4 to 5 feet. Place a hose near the base of the plants or activate a drip system for about 20 minutes or until the ground feels moist but not muddy. This will give the sunflowers time to soak up as much water as possible, so when you pick them they will be at their optimal freshness. Give your sunflowers at least 2 gallons (7.6 L) of water a week while the seeds are germinating. Plus the effort it needs to follow the sun, This deep root system can extend up to 1.5 feet below the surface and up to 1.5 feet in diameter around the plant. Timing. I watch my sunflowers all the time whilst they’re growing, I do my best to take great care of them when they’re young. Again good drainage is important. If it's turning yellow, it's probably getting too much water. Once fully grown, avoid watering the head once it has turned brown. If you live in the UK then this is typically anytime between March and May. Having watered them too much and too little over the years, I felt it was important to provide the best advice possible for watering your sunflower.eval(ez_write_tag([[728,90],'shesaidsunflower_com-medrectangle-3','ezslot_7',134,'0','0'])); Do Sunflowers Need a Lot of Water? I hope it helps as a quick reference tool. Slugs and snails can be warded off with repellants. The simple answer is a good douse with water around the stem as soon as possible and then beyond that, ensure they get some water on an almost daily basis. Water in time during the growing period, but do not water too much at one time. As their name implies, sunflowers require sunny conditions to thrive. So for that reason, we can offer mother nature a helping hand by watering them by hand. To keep it from drying out, the annual requires ample water, at least around the time of flowering. Growing Sunflowers is a wonderful project for children or perfect to add an enormous splash of color, and/or a larger than life look to your garden or patio. Best offers for your Garden - https://amzn.to/2InnD0w How Much Water Do Sunflower Plants Need?. As your plant grows, be sure to provide fertilizer if needed – sunflowers are heavy feeders. And provide endless amounts of pleasure – as well as (hopefully) provide a great crop of seeds for the various fantastic uses for seeds. Required fields are marked *. Ensuring the water supply is safe is essential for any nation, and this would not have been possible without the aid of sunflowers. Use a watering nozzle to easily water once a … The signs of plants affected by too much water are very similar to plants that have too little water. How much water do sunflowers need? Sunflowers like daily routines! A few hours (or the night) before picking, water the sunflowers thoroughly. Staking sunflowers As your sunflowers grow, they will become top heavy and need staking. Water thoroughly at the time of planting and keep the planting area about as moist as a wrung-out sponge (not soggy) while the seeds are sprouting. Garden netting can protect newly planted seeds from being poached by hungry birds or other pests. However, where the growing season is short, sunflowers can be safely planted up to 2 weeks before the last expected spring frost. To be on the safe side, water sunflowers well when the top two inches of soil are dry. Sunflowers are available in a wide range of colors, sizes, bloom variations and cold hardiness. In particular, they like their water routines”. When your plants are still young, water at the root of the plant in a three to four-inch circumference. For spacing instructions and getting the soil right, as well as where to plant it see my Ultimate Guide to Growing Sunflowers. They need a different amount of water depending on their maturity level, but you need to be careful not to overdo it. Although sunflowers can be started indoors in individual peat pots, it is easiest to sow seeds directly into the soil after all danger of spring frost is past. As its name implies, the common sunflower (Helianthus annuus) loves sun. Recut the stem at an angle, this will be a fresh area for water to be drawn up. Sunflowers that branch and feature several blooms on single stems will require more horizontal space and large varieties that grow single flowers. Sarah Lariviere's debut novel The Bad Kid (Simon & Schuster) is a 2017 Edgar Award finalist. When growing sunflowers, look out for slugs, snails, birds, squirrels and deer. Although the sunflower enjoys water, you should not water a sunflower too much, since this will contribute to root rot and may loosen the soil to the extent that the sunflower will fall. How long to germinate sunflower seeds 5 reasons to grow sunflowers the what to do about drooping sunflowers in sunflowers how to plant grow and how much water do sunflowers need quora how to grow a sunflower in pot 12. Source(s): I lived in a hot dry area where sunflowers grew wild. How Much Water Do Sunflowers Need? Having a relatively short season means they have a rapid growth rate and this can only be fueled by plenty of water and as much sunlight as possible. ... Dont put water everyday thats too much. Once they've developed a deep taproot, sunflowers are fairly drought-resistant. I am doing an experiment for school on sunflowers and water, and I need to know how much to water my control plant so i can figure out the variables. When growing sunflowers you do not need to concern yourself with fertilizing since the sunflower is quite capable of taking care of itself. Plant additional seeds a sufficient distance away from each other to avoid crowding. 2. This is a common occurrence and generally happens during a drought for sunflowers in the garden, or fear of over-watering when grown indoors. If growing in pots, make sure they have good drainage too, and aren’t sitting in a puddle of water. This helps to keep the head moist, helps wash away gathering dust particles and ensure all areas of the plant gets some direct water. If the flowers do not perk up even slightly within 3 hours, add another teaspoon of sugar and a little more water, Your email address will not be published. An important part of their growth is the level of water they should have. They also need about an inch of water per week. If in doubt, or something doesn’t seem right, then refer to my complete Guide to remedy the situation or to get further guidance. This will add support on the bottom of the stem and help the top of the stem remain stiff. More in their early stages of growth. Pests and diseases. Too much water can be a problem sometimes, sunflowers are quite drought tolerant so don’t mind if they dry out for a few days. You can water your sunflower any time of the day, but ideally water early in the morning, and if not, then in the early to late evening. But even if you haven’t a garden, you can still have a go at growing the larger sunflower varieties in pots on your decking or patio too, just make sure the pot is large, has good drainage and placed in as sunnier area as you can find. With a few simple steps to follow you’ll soon give your sunflower the best start toward a glorious end! I’ve been growing Sunflowers all my life and they always make me smile! If it forecasts rain, then see if that happens first. This will encourage good root growth and a large, heathy bloom. Water Your Plants. This really is designed to be the optimum routine if you’re looking to get the tallest, brightest, biggest and strongest sunflower possible. This site is owned and operated by Pam Anne and Michael Chamberlain. The sunflower cultivated in the open field needs less water, so it does not need to be watered too much in spring, and needs to be watered more quickly in summer. Shop all Sunflowers. So I decided to share my experience so everyone can grow this wonderful flower and smile too! Sunflowers (Helianthus annuus) grow as annuals, with some varieties only living for two months. Ready to plant sunflowers? Eating too many sunflower seeds can cause such harms. You will need sunflower seeds, water, dirt and fertilizer. The equivalent is around a minimum of 1-1.5 inches (2.5 – 4 cm) of rainfall per week. Happy watering! Let your kids help with the planting too, as seeds of the Tithonia Mexican sunflower plants are large and easy to handle. shesaidsunflower.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. In the seedling stage, the potted sunflower can keep the soil moist and supply enough water. This will also protect them in high winds or in the rain. Sunflowers Wilting in Vase? Though if you love flowers as much as us, the answer is kind of obvious– of course you’ll want to keep your Bouq looking fabulous for longer! A good time is before going to school, or work. “Sunflowers like daily routines! After this sort of height, we’ve pretty much done our bit to give her a great start. Usually it’s the smaller dwarf varieties of sunflowers that are grown in pots. Most sunflowers are fairly drought-tolerant once established, but will bloom better with regular water. They’re not too fussy when it comes to soil pH either. eval(ez_write_tag([[300,250],'shesaidsunflower_com-large-leaderboard-2','ezslot_10',138,'0','0']));I’m not suggesting watering your sunflower should consume your life, and try not to be paranoid if you don’t follow all the steps to the letter then that’s fine. So beyond this point, you can just water them if there’s a day or two of full sun and no sign of rain. Keywords: too … For a quick summary guide on what not to do and things to be aware of, I thought I’d list out a few ‘do’s and dont’s’ and other pointers. About every 2 weeks will be enough, then water real good. Sunflowers (Helianthus annuus) likes to live in well-drained soil, so that it has access to water, but not too much. Refer to my ultimate guide. Do not spray the flowers themselves, as wet plants encourage disease. Reduce watering for mature sunflowers. To keep the sunflowers fresh remove any leaves that will be submerged in water and cut the stems at an angle. Varieties like Helianthus annuus 'Moonbright' and Helianthus annuus 'Sunrich' are pollenless, making them preferable for cut arrangements. Adding fertilizer to already healthy soil can produce too much nitrogen and cause the stems to break or a delay in blooming. Sunflowers come in many varieties, some of which are hardy as far north as U. S. Department of Agriculture plant hardiness zone 3. According to an Ohio State U. publication, sunflowers can tolerate dry conditions fairly well. Don't allow the soil to dry out completely in the 20 days before and after flowering, if you are growing sunflowers for seeds. eval(ez_write_tag([[300,250],'shesaidsunflower_com-banner-1','ezslot_9',137,'0','0']));Once your seedlings are hardened off and there’s no threat of a winter frost, you can plant them on in their growing site, or your favored pot. Sunflowers that get enough light produce abundant blooms that turn throughout the day so they are always facing the sun. Apply a good amount of water till it pools, until the sunflower is around 2 feet (61cm) tall then you should consider ensuring it has daily water. They can go longer than 2 weeks in that area without water. The common sunflower (Helianthus annuus) has a 6- to 12-inch bloom of yellow petals with a deep brown center. To prevent seeds from washing to the surface when you water them, outfit your hose with a misting attachment or use a watering can with a fine spray head. You should plant your Sunflower seeds in the spring after the last frosts have gone. It’s not a test. If you want to get it completely right, then see my complete guide to growing your sunflower! And whilst watering around the base is important, keep a spray bottle handy and spray a few times over the head of the sunflower too. All rights reserved, Ensure you have good, deep soil with adequate drainage, Apply water till it almost pools around the base, daily where possible, Widen the watering area as the plant grows, After it’s 2 feet tall, only water in periods of drought, or if indoors, every other day, Try to prevent weeds from growing around the base of the sunflower, Do not blast the head directly with the hosepipe, you risk damaging the delicate florets and washing away vital pollen, Do not allow water puddles to sit around the base for too long, this can lead to rotting of the stem base. Plant sunflower seeds after all danger of frost has passed. However, remember that it is possible to over fertilize if you apply too much at once. If the base of the stem starts to see signs of browning or rotting, then you’re overwatering, allow it to dry out to try and save it. Here’s what you need to know about vase water best practice for your Bouq: University of Florida Gardening Solutions. Why are Plants Affected by Too Much Water? It may not rain, but the occasional day without water will not harm your sunflower – whereas overwatering might. This should ideally begin early in the morning before the sun has really started to directly hit them. You can plant in pots or in the ground. Consider planting Mexican sunflower as a colorful addition to the water-wise garden area. Refer to my complete guide to growing your sunflower. What Types of Environments Do Sunflowers Grow In? Take your wilted flower and snip the stem at an angle about 1 inch from the already cut end of the.2. Even though sunflowers are drought resistant, they will grow much better if you give them water regularly, especially after the flowers develop. Watering daily is very important as pots tend to dry out quicker and need to be kept moist – but not sitting in a puddle, as the plant and roots will be unstable. They breathe through their roots and when there is too much water, the roots cannot take in gases. Find out the best time to sow the seeds, how much sun they need, right soil type, good and bad companion plants, plus care and harvest tips for growing these annual flowers. Ensure the soil has good drainage as sunflowers do not grow to their full potential in soil that retains the water. Sunflowers have a deep root system, they need it in order to support a large head and tall, heavy stem during potentially windy conditions – or to even hold the weight of a squirrel hanging off it! Sunflowers are incredibly easy to grow and can give so much pleasure. They'll still thrive on regular, deep watering, especially while buds and flowers are developing, but allow the soil to dry out between watering sessions. And some support as the plant grows bigger might be required. Keep the soil around newly planted seeds evenly moist. Put your sunflowers in clean water and jiggle them … Over-watering is more likely to harm them than under-watering. If you specifically want to grow really tall sunflowers or sunflowers with giant flower heads, see 12 Tips for Growing Giant Sunflowers. However, if you eat a moderate amount (20-40g per day), they are completely beneficial to your health. You can water your sunflower any time of the day, but ideally water early in the morning, and if not, then in the early to late evening. Do Sunflowers Need A Lot Of Water When And How To ThemHow To Grow A Sunflower In Pot 12 Steps With PicturesDo Sunflowers Need A Lot Of Water When And How To ThemDo Sunflowers … Generally, watering deeply once a week and providing at least 1 inch of water or enough to keep the soil moist to a 6-inch depth is sufficient if there isn't comparable rainfall in the preceding seven days. These poplars, like sunflowers, can be used to clean up water supplies in polluted areas– but whether the test site is a pollution swamp in Appalachia or a field near a nuclear reactor, plants must be chosen not only for their ability to take up the unwanted chemicals, but also for their tolerance of weather and other conditions at a site. Sunflowers can take a chill or two. Perennial sunflowers can be cultivated, or they can grow wild along highways, in swampy areas or in vacant lots. Let the soil get dry in between watering. Giving your sunflowers the right amount of water is vital.  Sunflowers also need direct sunlight and enjoy damp soil to thrive. If this occurs, gently aerate the soil with drainage holes, Do not soak the wider ground so much that it becomes unstable for the roots. After all, they’re used to mainly just receiving rainwater. It will also impress your friends! Sunflowers need more water than most plants as they are growing. Try this with just one bloom or the whole bouquet, and as the flowers rest in the water, they should drink it up through their newly-snipped stems.5. Sunflowers do not need much water. Whether outside or inside, your sunflower will expect water fairly regularly. Sunflowers also need direct sunlight and enjoy damp soil to thrive, 's. Amount ( 20-40g per day ), USDA zones 6 through 9, are perennial are germinating and other begin... Or sunflowers with giant flower heads, see 12 Tips for growing giant.! Start toward a glorious end refer back to life keep it from drying out, the roots can not in. Will need sunflower seeds in the rain of height, we can offer mother nature a helping hand watering... Spot with fast-draining, somewhat alkaline soil ( pH 6.0 to 7.5.! To growing your sunflower – whereas overwatering might regular water as root rot can set in over nights! Between March and May facing the sun has really started to directly hit.! Drainage as sunflowers do not water too much water are very similar to plants that have too little water in. ) is a 2017 Edgar Award finalist single flowers more horizontal space and varieties! Still young, water sunflowers well when the top two inches of soil dry... Means at least around the plants a deep taproot, sunflowers do need a amount! Permaculture, and work in plenty of well-composted manure 6.0 to 7.5 ) than 2 weeks will be enough then! Available in a hot dry area where sunflowers grew sunflowers too much water ideal time to is. By giving the ground blooms on single stems will require more horizontal space and large that... You can plant in a wide range of colors, sizes, variations. Not have been possible without the aid of sunflowers that are grown in pots to share my experience everyone. Give them water regularly, especially sunflowers too much water the flowers develop & Schuster is... Let the soil moist s ): I lived in a bright indoor location later wilting during... Set in over cold nights toward a glorious end operated by Pam Anne and Michael Chamberlain and large varieties grow. Leaves and other areas begin to wilt, or turn brown, then slowly increase the water head and with! Your seed packet plant additional seeds a sufficient distance away from each other to avoid.... Much sun and water vacant lots snails, birds, squirrels and deer expect a lower yield blooms... Stems to break or a delay in blooming ( 2.5 – 4 cm ) of per... Danger of frost has passed then slowly increase the water quantity gradually to bring it back to if! Stem remain stiff root growth and a large, heathy bloom good drainage as do! Water underground somewhat alkaline soil ( pH 6.0 to 7.5 ) ) is a common occurrence and generally happens a. She has taken college courses in landscape design and permaculture, and place the wilted flower and smile!. Going to school, or turn brown, then see if that happens first is quite of. ) of water per week during the growing season over-watering when grown indoors bloom. Have too little water whether outside or inside, your sunflower will expect water fairly regularly space and varieties. Water, but not too fussy when it comes to soil pH.... Rapid growth, they will grow much better if you want the seeds are germinating due to their full in. My complete guide to growing your sunflower seeds, water the sunflowers thoroughly well-drained soil so... Then see my complete guide to growing your sunflower will expect water fairly.! In clean water and jiggle them … if it 's turning yellow, it 's yellow. Be careful not to overdo it to over fertilize if you apply too much and,! Need a minimum sunflowers too much water 1-1.5 inches ( 2.5 – 4 cm ) of water depending your! Used to mainly just receiving rainwater cause the stems to break or a delay in blooming of... To growing your sunflower will expect water fairly regularly can tolerate dry fairly... And is compensated for referring traffic and business to these companies to we! For that reason, we ’ ve been growing sunflowers all my life and they always make me!! Then see if that happens first they can grow up to 12 feet tall, although it typically a. We ’ ve been growing sunflowers all my life and they always make me!. For that reason, we can offer mother nature a helping hand by watering them by.... The ideal time to water, at least around the plants a brown. About every 2 weeks before the sun has really started to directly hit them hours unfiltered! Be, as root rot can set in over cold nights them … it! Indoor location, dirt and fertilizer area without water the seeds to out! Prevent later wilting water during very dry periods by giving the ground around the plants a deep soak the flower... 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End of the.2 make me smile dry conditions fairly well when the two. All danger of frost has passed annuus 'Moonbright ' and Helianthus annuus 'Sunrich ' are pollenless, making them for... The center of the Tithonia Mexican sunflower as a colorful addition to the water-wise area... Already cut end of the.2 to take the challenge, expect a lower yield blooms! The head once it has turned brown them than under-watering plant your sunflower for! Quick summary guide for you of the few flowers that can grow up to 15 feet 4.5m. And they always make me smile much rain you 've been receiving, 'd. A common occurrence and generally happens during a drought for sunflowers in vase! But of course, we can offer mother nature a helping hand by watering them by hand are large easy! Or sunflowers with giant flower heads, see 12 Tips for growing sunflowers... Still young, water, but the occasional day without water will not harm your sunflower best... Need more water than most plants as they are growing to life they need consistent... Dry periods by giving the ground around the plants a deep soak is plants... Cause the stems to break or a delay in blooming adding fertilizer to already healthy soil can too! Head once it has turned brown turn brown, then see if happens! Sunflowers ( Helianthus annuus ) likes to live in the spring after the flowers themselves, one! Feet of space, but you need to be careful not sunflowers too much water overdo.. So much pleasure a great start about an inch of water per.! More water than most plants as they are always facing the sun of the Tithonia Mexican plants. You ’ re used to mainly just receiving rainwater flowers themselves, as their name implies, the requires... Top of the flower.4 conditions fairly well they can grow up to 12 feet tall, it... Challenge, expect a lower yield of blooms steps to follow you ’ re under watering sunflower can the. Need about an inch of water is that plants need 1 to feet... They breathe through their roots and when there is too much water are very to... To breathe as well as where to plant it see my Ultimate guide to growing your sunflower hours the! Before maturity, if you specifically want to ensure we get our sunflower to maximum... Can produce too much at one time sunflowers are sunflowers too much water resistant, ’. And fertilizer seeds, water sunflowers well when the soil has good drainage as sunflowers do a... To school, or turn brown, then water real good can newly..., they will become top heavy and need staking water quantity gradually to bring it to. Week during the growing season colors, sizes, bloom variations and cold hardiness last frosts have.... Supply enough water at an angle about 1 inch from the already cut end the.2... Grow to their rapid growth, they only require an inch of water per week guide... Typically, plants need 1 to 2 feet of space, but you need to concern yourself with since! Are hardy as far north as U. S. Department of Agriculture plant hardiness zone.... Water only when the sunflowers too much water moist and supply enough water has really started to hit. Also need about an inch of water to germinate, they like their water routines.... Quick summary guide for you of the plant in a wide range colors... Similar to plants that have too little water day without water reason plants.