Strong small native flowers called coneflowers, commonly referred to as echinacea, attract butterflies, bees, and birds to the garden. Here are instructions on how to grow this native American plant as well as crucial advice on plant maintenance, from deadheading to pruning in July.
Coneflowers are erect, vibrant plants that are perennials in the Daisy family (Asteraceae). The eastern United States, specifically from Iowa and Ohio south to Louisiana and Georgia, is the region where the plant is native. They have dark green foliage and can reach heights of 2 to 4 feet. They self-sow their seed widely and thrive quickly. Midsummer to fall frost, these midsummer bloomers can bloom!
The lower stem of the plant, which is frequently prickly, is referred to by its genus name Echinacea, which is derived from the Latin word for hedgehog, echinus. The elevated cone-like cores of coneflowers—hence the name—contain seeds that draw butterflies. After flowering, leave the seed heads on the plant to draw in songbirds!
Once grown, coneflowers can withstand drought without any problems. They are heat resistant! They are less susceptible to deer than other floral plants since they are native plants with thorny stems.
The purple coneflower, Echinacea purpurea, is the most popular variety that gardeners may grow. Coneflowers come in a variety of vibrant or muted colors, so don’t worry if purple doesn’t go well with your garden’s color scheme.
Coneflowers look beautiful in large groups, especially when they are a mix of different colors. They are at home in both classic gardens and wildflower meadows.
CHOOSING AND PREPARING A PLANTING SITE
- For the best flowering, coneflowers require full light and well-drained soil. Pick a spot where neither other plants nor the coneflowers will be shaded out.
- Depending on the kind, they can grow to a height of between 2 and 4 feet.
- Coneflowers do well in poor soil, but they thrive in rich soil, so if necessary, add organic matter to the soil.
- Coneflowers can withstand drought.
Use a garden fork or tiller to loosen the soil in your garden to a depth of 12 to 15 inches, then stir in a 2- to 4-inch layer of compost. (Read up on how to get soil ready for planting.)
WHEN TO PLANT CONEFLOWERS
- Coneflowers are typically purchased as little plants that will soon bloom. The best time to plant them is in the spring or early summer.
- In the spring, coneflowers can be planted from seed indoors (approximately a month before the last day of the spring frost) or outdoors (when the soil temperature has reached at least 65F/18C).
- Coneflowers grown from seed may require two to three years to bloom.
Should coneflowers be planted in July?
Echinacea, sometimes known as coneflowers, is a hardy perennial in the daisy family (Asteraceae). They are indigenous to the eastern and central United States, from Colorado to Texas in the south and the Great Lakes in the north. Here is how to cultivate this native American plant in your garden.
About Coneflowers
These quick-growing plants have a height range of 2 to 4 feet, blossom from midsummer till the first fall frost, and self-sow profusely. Coneflowers are named for their elevated, conical centers that draw bees and butterflies. The seed heads draw songbirds like goldfinches once they blossom. Once they are established in a conventional garden or a meadow of wildflowers, coneflowers enjoy the heat and are trouble-free.
The majority of echinacea species are purple (E. purpurea), but there are up to nine naturally occurring varieties that are yellow or purple (E. paradox). More sizes and colors are available with hybrids, but there are drawbacks as well: many of them lack genetic diversity and are sterile, which means they cannot produce viable seed.
The lower stem of the plant, which is frequently prickly, is referred to by its genus name Echinacea, which is derived from the Latin word for hedgehog, echinus. Coneflowers are so named because their elevated, cone-shaped centers are filled with seeds that draw butterflies. After bloom, leave the seed heads on the plant to draw in songbirds like goldfinches! They are less susceptible to deer than other floral plants since they are native plants with thorny stems.
When grown in large groups, coneflowers are spectacular, especially when they are a combination of different colors.
Coneflowers prefer soil that drains well and direct sunlight. Although coneflowers can thrive in a variety of soil types, nutrient-rich soil is where they bloom at their finest. 12 to 15 inches of loose soil should be added, along with a 2 to 4 inch layer of compost or aged manure. Pick a spot where the coneflowers won’t be shaded out or languish in soggy ground. If the correct circumstances exist, they will spread quickly. (Read up on how to get soil ready for planting.)
When to Plant Coneflowers
Coneflowers are typically purchased as little plants that will soon bloom. Planting time for these should be in the spring, early summer, or fall.
- Coneflowers should be planted while they are young and will bloom in the spring or early summer.
- Eight to ten weeks prior to the last spring frost date, seeds can be started inside. Alternately, plant them outside after the soil has warmed to at least 65°F (18°C). Plants grown from seeds are unlikely to blossom for two to three years.
- Note: Coneflower plants will rapidly self-seed if you don’t clip them back.
- Coneflowers should only be divided or moved in the spring or fall.
How to Plant Coneflowers
- Coneflowers should be spaced 1 to 3 feet apart, depending on the variety’s mature size.
- Dig a hole that is almost twice as wide as the pot if you are planting from one. The root ball of the plant should be level with the soil surface when it is placed. To the top of the root ball, fill in.
- At planting, give it plenty of water.
- To help keep plants wet and discourage weeds, cover the soil top with thin layers of compost, followed by mulch.
Learn more about the advantages of planting coneflowers by watching our video:
Coneflowers can withstand drought, although young plants require water from time to time, and more frequently if the spring is particularly dry.
- To help keep the plants wet and discourage weeds, mulch and compost in thin layers should be placed around them.
- Fertilizer is rarely needed in native soil. When you plant, make sure your soil has a lot of organic matter.
- If the spring is particularly dry or your coneflowers are recently planted, just add extra water in the late spring.
- When flowers start to fade, deadhead to extend the bloom duration. Trim stems to a leaf close to a bud. Late-season deadheading stops self-seeding and bird feeding.
- Optional: When coneflower plants bloom, prune them back by a foot to promote delayed blooming for fall enjoyment. Because coneflowers have a tendency to become lanky, this will result in later blossoming and more compact growth. For more evenly spaced bloom heights and periods, cut certain flowers but not others.
- August could bring on beneficial army beetles that resemble wasps. They pollinate plants and eat bug eggs and larvae. Avoid hurting them.
- In cooler areas, scatter mulch around plants in the late fall.
- When stems wilt or after a hard cold, trim them back to the soil line. Cut back in the late winter to encourage self-seeding. When cleaning up the garden in the late winter or early spring, prune back the plants.
- Optional: Think about allowing late-season flowers to develop on the plants. Birds will be drawn to the seed heads, which will encourage self-seeding. If you prefer not to have self-seeding, deadheading will stop it. Cut the dead flower back to a leaf where you can see a bud that is about to swell in order to deadhead.
- Coneflowers can be divided or moved in the spring or fall.
Growing Coneflowers in Pots
Coneflowers are often grown in the ground as perennial plants, but you can grow them in pots if the pots are deep enough to accommodate the plant’s taproot. Use containers with drainage holes that are at least 2 or 3 gallons in size. For drainage, spread crushed gravel in the pots’ bottoms. With potting mix, halfway fill the pot. Slow down. Spread the roots out and plant the root ball an inch below the container’s rim. Gently press down the soil after adding it gradually until it is level with the top of the root ball. Deep breathing.
- Place pots in full morning sun and half afternoon shade after keeping them in partial shade for two to three days.
- Always deeply water the soil when it feels dry to the touch. There is a risk of fungus from water on leaves.
- Every few weeks, fertilize the soil with a water-soluble 10-10-10 product.
- For sustained flowering, remove the dead flowerheads slightly below the flower’s base.
- When plant development slows in the fall, trim plants to the soil level to overwinter them.
- Move to a spot with low to moderate indirect light and a cool (40 to 50 °F) temperature.
- Every few weeks, check the soil and water it lightly if the top 3 inches are dry.
- If new growth starts to sprout in the spring, relocate to a warmer (60 to 70 °F) and more sunny spot. Moving the plant aids in preparing it for life in the spring and summer outdoors.
- Avoid watering leaves from above since this can promote fungus on the leaves. Instead, hydrate the soil. If you notice any bugs or aphids, use a neem oil solution spray or an insecticidal soap.
- Dividing and repotting echinacea plants every three to four years following the start of new growth is recommended.
- Echinacea purpurea cultivar “Robert Bloom” features pronounced, dark orange centers and vivid scarlet flower petals.
- The dark mauve flower petals of Tennessee coneflower (Echinacea tennesseensis) have greenish-pink cores.
- Echinacea purpurea’s “Finale White” variety includes flower heads that are creamy white with greenish-brown cores.
- The soft-yellow petals of the hybrid echinacea “Cleopatra” have golden-green cores.
Coneflowers can be planted in the summer.
Coneflowers can be found in zones 3 through 9 of the U.S. Department of Agriculture’s plant hardiness map. Coneflowers can be planted in the spring, summer, or early fall.
Can perennials still be planted in July?
When is it too late to move my perennial flowering plants? Can I divide and move my plants into the fall as late as possible?
A: You still have time! Perennials can be transplanted at any time up until the ground freezes in the fall, or you can wait until the spring. Herbaceous perennials can develop a strong root system over three seasons before the hot summer of the following year, so the fall is a great time to transplant them. Non-woody plants known as herbaceous perennials lose their leaves in the winter. Every year, they reappear from the root system.
Plants can be transplanted to be moved to a more suitable place, to relieve congestion, or to produce additional plants (divisions). Different perennials grow at various rates. To stay healthy, some plants require division more frequently than others. It is advised to divide typically every four years unless you want to increase plant reproduction more quickly.
Before transplanting, make sure the soil at your new location is ready. Spend some time putting compost to the soil to improve it. By encouraging healthy root growth, the work invested amending the soil will pay off in the long run. The effects will be noticeable in much healthier plants with active flowering.
- A list of suggested plants for a succession of flowers is included in the section on herbaceous perennials’ introduction.
Have a query about a plant or a pest? The specialists at University of Maryland Extension have solutions! Send images and questions to Ask Extension.
When should coneflowers be transplanted?
Coneflowers are best moved or transplanted in the early spring, when the earth is just starting to warm up and soften. In the early fall, when temperatures are cooler and the sun is not as intense as it is in the summer, they can also be transplanted. Coneflower transplanting should not be done in the summer.
After allowing them to mature for around three or four years, you can divide your coneflowers and transfer them. Or, you can frequently transfer a whole plant from one location in your yard to another. You should have no trouble replanting your coneflowers as long as you take care to do it at the appropriate time of year and are able to obtain enough of the healthy root system for a successful transplant.
Coneflowers generally tolerate drought because of their extensive tap roots. The roots of Echinacea purpurea have been found to extend five feet deep! Coneflowers should be divided and transplanted after being dug up as deeply as possible to preserve as much of the root system as possible. Although you won’t be able to collect the entire root system, your transplant should be fine as long as you can get around a foot of root development.
Once you have separated and prepared to transplant your coneflower plant, proceed as instructed in the “Steps to Plant Coneflowers” section above.
Coneflowers can they spread?
Echinacea needs full to partial sun to grow well. At least four hours of sunlight every day are required for plants. Since the plants are native to woodland borders, they will flourish in locations with morning shade and afternoon light, or the opposite.
Echinacea may thrive in rocky, poor soil, but not in soggy, waterlogged soil. Compost should be used as a mulch around newly planted plants.
Coneflowers grow in clumps and require space. One plant will typically grow bigger, but it won’t spread through roots or rhizomes and take over the entire garden. Check the mature size stated in the plant description to help you choose the appropriate spacing because the final size of the plant clump depends on the cultivar. Leave 18 inches between plants if it is anticipated that they will spread to be 18 inches broad. Echinacea must be planted where you want them since they have deep taproots. They dislike being relocated after being established.
Echinacea plants should be planted in well-drained soil in full to part sun in the spring or the fall. Echinacea is also simple to cultivate from seed, but it needs a period of stratification—a cold, damp time—in order to germinate. In the fall, scatter seeds widely (after hard frost in the north and prior to winter rains elsewhere), lightly covering them to deter birds from eating them. In the spring, seeds will begin to sprout. One benefit of starting with transplants is that the majority of plants will bloom during the second year.
Do coneflowers require shade or sunlight?
Coneflower plants can withstand both heat and drought, making them simple to grow even for novices. Coneflowers bloom in about 60 to 90 days, according to Sears, and prefer full sun. “USDA zones three to nine will be ideal for most coneflowers.” Coneflowers grow best in full sun (at least six hours per day) and loose, well-drained soil, but will also withstand heavy clay and even shallow, rocky soils with aplomb, according to Quindoy. Just make sure you plant them somewhere they’ll see lots of light. Once established, these extremely adaptive plants are also drought-tolerant.
Purple coneflowers – do they bloom the first year?
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Quick Guide: Planting, Growing & Caring for Echinacea
- Plants that require little care and water have robust pink flowers.
- Plant in broad light; loves nutrient-rich soil, yet is remarkably adaptable
- Grow from division, nursery stock, or direct sowing
- attracts butterflies and bees
- Summer to October blooming; tolerates light frost
Full sun to some partial shade From seed to flower: 90–120 days of maturation 36 to 48 inches tall 12 to 24 inches should separate objects in all directions.
Site Preparation
Purple coneflowers are adaptable and can withstand most circumstances. Plants will grow, though, if you provide them with rich, well-drained soil and lots of sunlight. Before planting, the soil should be heavily amended with organic compost or aged animal dung to greatly increase the health of the plants (watch Flower Gardening from the Ground Upvideo). Coneflowers can withstand both heat and dryness.
How to Plant
It is simple to grow echinacea from seed, nursery stock, or division. In the open while a light frost is still possible, sow seeds 1/2 inch deep. Seed germination takes 10 to 20 days. If seeds are sowed early, flowers will usually blossom in their first year (see Summer Flowers for Color).
To prolong the blooming season, regularly pinch off spent blooms or utilize them as cuttings in flower arrangements. To encourage large, gorgeous blossoms, use a high-quality flower fertilizer multiple times during the planting season. Mulch reduces weed growth, retains moisture, and enhances aesthetics.
Insect & Disease Problems
Many garden pests, such as Japanese beetles, aphids, and leaf hoppers, are dangerous to echinacea. For a safe and sensible approach to pest control, check frequently and, if issues arise, take the following actions:
- To remove substitute hosts, remove weeds and other garden trash.
- Put seriously afflicted plants in the garbage after bagging them up safely.
- To combat and eliminate insect pests, release beneficial insects that are readily available.