How To Grow Dahlias For Cut Flowers: Varieties, When To Cut & Care

Dahlias are some of the most varied and dramatic flowers you can grow. They’re known for their large, colorful blooms, but they vary widely in size, shape, and color. This makes them incredibly fun to grow, as well as very versatile. Dahlias make great cut flowers, and they fill a very important gap in the cut flower market: a sturdy cut flower that works well for larger bouquets.

How To Grow Dahlias For Cut Flowers

You’ll find many colors and varieties of dahlias, from dinner-plate-sized blooms to smaller ones that are under four inches. There is also a range of colors from white to deep purple and even a few striped varieties. They do especially well if you want to create an arrangement with lots of variety.

In this article, you’ll learn how to plant your dahlias so that they get at least 8 hours of direct sunlight a day. You’ll also learn how to stake them when they reach three feet tall and how to keep the tubers out of direct sunlight. Here are a few tips on how to grow dahlias for cut flowers. Hopefully, these tips will help you grow beautiful, long-lasting cut flowers.

Growth Conditions for Dahlias

Growing dahlias in your garden is a great way to fill your home with beautiful, colorful flowers. You can cut them and arrange them in bouquets or vases to brighten up any room in the house. The best part is that they are easy to grow and maintain.

Dahlias grow best in sandy soil that drains well. You can amend your soil with sulfur to improve the pH. Dahlias also benefit from slightly acidic soil. Make sure that the soil is not too dry or soggy; too much water will cause the roots to rot and tubers to die. Dahlias like a pH of 6.5-7.0.

The minimum amount of sunlight needed by dahlias is six hours a day, but you can choose a location with more sunlight. Plant them in a spot that receives early morning sun and afternoon shade. If the area you plan to plant them does not receive this amount of light, you might want to choose a different flowering plant.

Another good spot for dahlias is a window sill where the light will be indirect and partially blocked. This type of spot gets around six hours of direct sunlight a day but has some partial shade. Dahlias prefer partial shade because it receives mostly indirect light. They will tolerate low-light conditions, but you do not want them to get direct sun all day.

You can plant dahlias during the spring or summer. The soil temperature should be at least 60 degrees Fahrenheit. Dahlias will struggle in soil that is too cold. Make sure to plant the tubers four to six inches deep, eye-facing up. If you’re not sure, stake them. Cover the tuber with soil or stakes to prevent them from rotting.

In addition to planting dahlias in a sunny window, you should also keep in mind the water requirements of this flower. Dahlias don’t need a lot of water, so summer rainfall should be enough. To help your dahlias grow, you can use organic fertilizers such as Dr. Earth Flower Girl fertilizer, which is slow-release and contains micronutrients.

Dahlias are susceptible to a number of diseases. While they rarely cause death, some may weaken the plant by reducing the number of sugars it produces in its leaves. A few diseases are also harmful to dahlias, including powdery mildew and spider mites. Neem oil can be applied to plants to kill off these pests. Neem oil is available at most major garden centers, big box stores, and farm stores.

Best Dahlias For Cut Flowers

Dahlias are so much fun to grow, and they make for great cut flowers too. Here are our favorite dahlias for cut flowers:

Chimacum Troy

The Chimacum Troy is a beautiful dahlia that grows up to 6″ across. It has a classic, elegant shape with a golden center and dark-green edges, making it an ideal choice for weddings or other special occasions. It also comes in several other colors, including white and orange.

Cornel Bronze

The Cornel Bronze is another elegant dahlia that grows up to 6″ across. Its creamy-white petals are accented with dark-green stripes, resulting in a truly stunning flower. This variety has been popular for years, but it’s still available year after year because of its versatility and durability.


The Diva is another long-lasting option, this one is perfect for weddings and other special events. The Diva grows up to 6-8″ tall and has pretty pink petals with darker green centers. It’s one of the most popular varieties of dahlia out there right now, so get yours today.

Jowey Winnie

Jowey Winnie is a dahlia with a unique petal shape, and it’s the perfect choice if you want to add some color to your flower arrangement while maintaining its shape. It’s also available in white, which makes it a great choice for adding pops of color to an arrangement. You can use Jowey Winnie as an accent or focal point for your arrangement.

Natalie G

Natalie G is another great option for cutting flowers because it has a unique shape and color. The petals are soft and rounded, giving it a natural look that pairs well with any other cut flower type. If you’re looking for something bright, Natalie G will do the trick.

Growing Dahlias From Tubers

To grow dahlias from tubers, start them indoors several weeks before the last frost date. Dahlia tubers should be placed in a pot of soil with two inches of soil. Then, water them regularly until new growth breaks through. Dahlias can be transplanted outdoors as late as mid-June in most regions of the country. Whether you plant them directly in the ground or start them indoors, it’s important to have proper drainage and ample sunlight for a healthy plant.

Depending on the variety, dahlia tubers are shaped differently but all have three important parts: a crown, neck, and body. The crown is where the plant’s vegetative growth takes place and provides nutrients and energy. The neck and body are the parts of the tuber that keep it together. Digging around the tuber’s stem can result in damaged tubers.

To avoid rot, it is important to prevent dahlias from getting too wet in the tuber stage. In cool soil, the tubers need a longer time to emerge. Do not water the plants until the sprouts break through the soil. Also, ensure that the soil is dry before planting. A cool place is better than a warm one, as water will make the soil too wet and cause the tuber to rot.

To propagate dahlias from tubers, follow these simple steps:

Start by digging a 6- 8 inches deep hole, and make sure it’s wide enough to plant your tuber. Then add in some soil, so you have a good mix. You can use a soil block or something similar that’s been pre-mixed with potting soil so you don’t have to worry about mixing it yourself.

When you’re done, fill up the hole with water. You want it to be at least an inch deep so that your tubers don’t dry out while they’re waiting for their spot to sprout. Soon, they will develop new roots and produce replacement stems. If you are growing dahlias from tubers, make sure to remove dead flowers and side growths from the plants.

Before planting your tubers, if you observe they are looking dried, you may need to soak the tubers for about 1 hour before planting. After that, plant them in a large pot with sufficient depth to accommodate one tuber. Fill the pot with organic matter and a mix of multipurpose compost and slow-release fertilizer. Be sure not to overwater them as this can lead to tuber rot. Dahlias can tolerate heavy rain and will still produce beautiful flowers if the soil is a bit acidic.

Planting Dahlias From Seed

Dahlias are easily grown from seed. They’ll eventually grow tubers, so you can plant them in the spring. Moreover, if you plant them from seed, they’ll grow full-size plants. Some of them will produce tubers during their first year. You can also use these tubers as cut flowers for your bouquets.

Before planting dahlias from seed, it’s essential to know the estimated date of the last frost. You can find out this date by doing a simple Google search for “last frost in your city”.

If you want to plant dahlias from seeds, there are a few things to consider. First, understand that you need to start with good soil. The best soil for dahlias is sandy loam with a pH between 6 and 7. If you don’t have the right soil, you can use good potting soil mixed with sand or composted manure.

Second, get your containers ready. You’ll need a 10-15 inch container for each dahlia seedling and enough space for the roots to grow out of when they germinate.

Third, plant your seeds. Dig out a hole for each seed, about 1 inch deep. Firm soil helps the seedlings emerge more quickly and keeps them firmly in place as they begin to grow. Water your seeds regularly, but don’t let them stay too wet, they need to dry out before you water them again. After about 14 days, your dahlia seedlings will have sprouted. At this stage, keep them evenly moist and watch them grow.

You can sow your seeds in flat containers or pots and keep them indoors until they sprout. When they do, place them outdoors in a sunny location where they will get plenty of water and nutrients through the spring and summer seasons until they bloom in late fall or early winter (depending on your climate).

While tubers produce identical plants, planting dahlias from seed can create a new variety of flowers. Dahlias grown from seed will produce unique blooms each time you start your new garden. While growing dahlias from tubers is the most reliable method, growing dahlias from seed is a rewarding experience and an inexpensive way to fill a flower bed.

Dahlia Spacing For Cut Flowers

If you want to grow your own dahlias, there are several ways to get them started. You can start from seed or tubers, and either way will produce flowers. Start your dahlias in rows or horizontally. Plant the smaller varieties nine to 12 inches apart and the larger ones two to three feet apart. Dahlias will grow half their final height. Taller varieties may reach six feet in height.

Staking Dahlia Plant

To ensure a sturdy plant, you can stake your Dahlias after they have reached 3 feet in height. Taller varieties, such as dinner plate dahlias, should be staked as soon as they reach three feet in height. This will help support the heavy flower heads and keep them upright in windy conditions. Be sure to place the stakes before planting them, but don’t drive them through the tubers.

To plant a Dahlia, you’ll need high-quality potting soil and a stake. Water your Dahlia regularly to encourage growth but wait to water for at least two days to prevent tuber rot. Once you’ve planted your Dahlia, you can increase your watering frequency to once or twice a day. A little more frequent watering will also encourage the plant to grow bigger.

Once you’ve decided on the planting location, you can start planting your Dahlia tubers. They should be planted six to twelve inches deep in well-drained soil. Then, divide the tubers into several sections and stick them in the ground. Plant the tubers at least three inches apart. If your tubers are large, stake them with twine. Water them regularly after they emerge from the tubers and every time they have new growth on their top.

You can also use twine to support the stems as they grow. The stakes should be hidden by the leaves. Dahlias need regular watering in order to produce big, beautiful flowers. Soggy soil can cause the tubers to rot. Instead, experts recommend deep watering less often, but more frequently. If you plan to cut the stems off, cut them just above the third set of leaves.

When to Cut dahlias

For the best blooms, you’ll want to cut dahlias when they’ve just opened. The optimal stage to cut a dahlia is based on the project you’re working on. If you’re cutting dahlias for a wedding or wholesale business, the flower should be about half-opened. If you’re cutting them for use on the same day, they should be fully opened. Check the petals to see if the flower is still young, because a soft flower may be about to drop its petals.

Once you’ve harvested your dahlias, you should store them in a cool, dry basement or garage. To store them properly, you can use peat moss or sawdust. Be sure to label your tubers before the first frost, as they’ll be harder to identify once they’ve been exposed to cold. However, dahlias can be stored in your house as an annual. You can cut them for bouquets and deadhead them to get more blooms.

Depending on the type of dahlias you choose, you may not need to worry about the amount of pruning needed. Dahlias should be pruned when they’re about 12 inches tall and have four sets of leaves per stem. If you decide to prune a dahlia when it’s taller or has longer stems, you can still do so with a sharp knife. To prune a dahlia, use a thumbnail to snip off the lower stems. For long stems, pinched off the leaves further up the stem.

Dahlias have a shorter vase life than zinnias. But that doesn’t mean you can’t use them as cut flowers. In fact, dahlias can be a great addition to your cutting garden. And if you’re a novice at flower gardening, you can take a page from Ross’s book and learn the ins and outs of dahlia cut flowers.

To cut a dahlia, simply pinch the stems off the bottom and place them in a cool room for about an hour. Make sure to place the flower away from warm appliances and sunny windows. Make sure the vase is cool enough to prevent the leaves from decaying and shortening the vase life of your flower. Afterward, you can add other flowers to the arrangement, or simply leave a dahlia alone. Either way, dahlia arrangements are dazzling.

Source: Three Acre Farm

How Do You Harvest Dahlias For Cut Flowers?

Dahlias are beautiful, bright flowers that can be grown in almost any climate. They come in a wide range of colors and shapes, and they’re easy to grow. But harvesting them for cut flowers?

While it might seem like a good idea to cut your dahlias any time you want, the best time to do so is in the cool of the morning. This way, you can ensure that your flowers will stay fresh for as long as possible.

There are different ways you can harvest your dahlias for cut flowers, but the most common method is by cutting off the stems long enough at the base of the plant. You should use a sharp knife or scissors to cut off the stem of your flower.

Cut each stem at an angle down toward the middle of its length. You can also cut flowers that are open or nearly open only because the buds will not open once they’re cut.

How Long Do Dahlias Last As Cut Flowers?

Dahlias are a popular wedding flower, but you may be wondering how long they last as cut flowers. The answer is actually much longer than you’d think.

The average dahlia should last for 4 – 7 days as a cut flower, though some varieties can go as long as 10 days or more. If you’re going to use your dahlia as an accent in a bouquet or other arrangement, try to keep it at the base of the stem and out of direct sunlight. If you want to keep it for longer, wrap it in tissue paper and store it in the refrigerator.

The first thing to keep in mind is that while dahlia leaves are pretty, they’re also pretty fragile. They can get crushed very easily by being moved around or even just being handled by people who don’t know what they are doing. If you’re planning on bringing your dahlia indoors, don’t be afraid to protect it with some extra wrapping or a box before you move it into its new home.

In addition to the risk of damage from handling, dahlias also tend not to last very long in the water. This isn’t necessarily because they’re any less strong than other flowers, they just don’t like being soaked. Their stems are hollow and don’t hold up well when subjected to submersion for too long.

Storing Dahlia Tubers

After harvesting, clean and dry the tubers. If the crown is brown or rusty, the tuber is likely to have crown rot. Discolored tubers are unlikely to be kept. Rinse them well in a clean, dry area. During cold weather, you can wash them with a hose or indoor laundry tub. If you don’t want to risk damaging the tubers, cut off the leaves and roots and store them in a cool, dry area.

To store Dahlia tubers, keep them in a dark, cool place. They need to be at a low temperature of forty to fifty degrees Fahrenheit. They should be stored in plastic bags to prevent drying out. If you must keep them in a damp environment, paper bags may work better. When in doubt, store the tubers individually in plastic wrap. If storing Dahlias outdoors, they should be placed one inch below the surface of the soil.

Before storing Dahlia tubers, wash them thoroughly to remove excess soil. Remove any fungus or algae that may be present. Keep Dahlia tubers away from direct sunlight for several days to allow moisture to escape. Do not puncture them, as this will cause them to rot. Once thoroughly dried, carefully store them away from sunlight. This will prevent damage to their roots. Keep Dahlia tubers away from direct sunlight and excessive heat.

When storing Dahlia tubers in a cool place, they require minimal care. Check them every couple of weeks. If they are shriveled or mushy, discard them or relocate them to a more humid location. If they have mold, remove it with a brush. If the tuber is in good shape, it can be planted. You can also pot them up in pots for spring planting.

If you want to save Dahlia tubers for the winter, you can store them in a cool, dry place. Then, plant them as needed in your garden. Dahlias need to be planted when they are ready for their first season in your area. For the best results, start them indoors before their first blooming period. Depending on your climate, you can plant them as late as mid-June. Dahlia tubers should be large enough to have at least one eye and a piece of the crown attached to them.

How To Care For Dahlia

When planting dahlia seeds, keep in mind that the pods will be a light tan-green color, and will require daily watering. When seedlings have emerged, you can move them to smaller pots and “harden off” them for the outdoors. When the weather warms up, dahlias are ready for transplanting. After hardening, they will grow and bloom.

When planting dahlias from seed, be aware of the potential frost danger. Dahlia tubers need to be stored cool and dry during the winter. You can store them in sawdust, shredded paper, or peat moss, which are slightly damp, but not soggy. Too much moisture can cause them to rot. Dahlias are expensive perennials, so don’t risk losing them to frost. Deadheading will ensure you’ll have more flowers in the spring.

After you’ve finished planting your dahlia seeds, take cuttings at least a couple of inches long from the base. You can trim off the lower leaves so the cuttings don’t rot in the pot. The center growth bud can be pruned with garden snips or scissors to encourage branching and a bush with more flowers. For indoor arrangements, cut the sides of the cuttings off, if necessary.

Do not forget that Dahlias need regular feeding. Feeding them monthly with a water-soluble organic fertilizer can help them bloom faster. Avoid feeding them with high-nitrogen fertilizers, as they may produce green growth without flowering. Also, mulch your dahlias to keep weeds out and retain moisture. Dahlias make great cut flowers, so it’s well worth the extra effort.

It is important to fertilize your Dahlias with a low-nitrogen liquid fertilizer such as a 10-20-20 formula. Fertilize your Dahlias about a month after you plant them and then every three to four weeks during the summer until early autumn. Be sure not to overfeed them because too much nitrogen will result in leggy stems and small blooms.

When planting dahlias from seed, you’ll need a garden space with plenty of space. Several inches of soil is required for a tuber, while the soil for larger varieties will require a stake. The plants thrive best in moist, rich organic soil. If the soil is too wet, a shady area may be necessary to protect the plants from scorching temperatures. When planting dahlias, be sure to use a soil rake to level the ground.

In conclusion,

Dahlias need full sun and moist soil. They also require rich compost or fertilizer every spring when they are first planted. Planting dahlias can be difficult because their roots are very fragile, so it’s important to handle them with care when handling the bulbs. You will also want to make sure that you water the dahlia plants regularly after planting them into the ground.

The amount of water needed depends on whether or not you live in an area where rainfall is plentiful or scarce. Once you have planted your dahlia bulbs, they should bloom within two weeks of planting. You can expect them to bloom for at least five months if all goes well with regular watering and fertilization during these times as well.

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