Although the first step might seem straightforward, it is significantly more crucial than you might realize. Once you have recognized certain plants, you can determine whether they are actual native species or cultivars if they are found in the wild.
However, you should be mindful that the plant might be a hybrid if you plan to save seeds from a neighbor’s strangely colored (orange, white, or red) coneflower. The seeds will produce a different flower if it is a hybrid. (More information is provided at the article’s end.)
Collect seed heads
The seeds will begin to form a few weeks after the flowers have finished blooming. There are really two locations on the seed head of echinacea where seeds can be gathered. both inside the actual “cone” of the cone flower as well as at the base of each petal.
Echinacea seed heads can be harvested whenever they begin to turn brown or dry out. Either 5 or 6 below the seed head is where you should make the cut. Alternately, hold the seed head gently and make an incision immediately below it. These should go in a paper bag.
Before harvesting, you should allow the seed heads to completely dry out. Alternatively, you could give the seeds themselves a week to completely dry out.
Remove seed from the seed head
Here’s where my method for preserving echinacea seeds shines the brightest! The “cone” or seed head is highly thorny and unpleasant to handle, as you are already aware. Therefore, we will do something far better than using clippers to cut the seed head open and release the seeds.
Obtain a container with a minimum 6 diameter and 6 height, such as a used coffee can made of plastic. Place a few seed heads into the coffee can, shut the lid, and give it a good shake! The seed will come free from the cones after shaking for roughly 10 to 20 seconds.
Simply lift the top and take out the (now-empty) coneflower seed heads at that point. The majority of the good, live Echinacea seed will be what is left in the can (and a small amount of chaff). The seed can now be allowed to dry for another week or two on a plate or in a cool, dry area (and not in direct sunlight).
Sift the seed to remove chaff (Optional)
I also have another suggestion if you don’t want some chaff mixed in with your seed. A standard kitchen strainer can be used to get rid of the chaff. Simply pour the seed/chaff mixture into a strainer and twirl it around gently.
Most of the chaff will either fall or blow away if you do this outside. Much of it will fall through the strainer if it is inside. Everything depends on you. Hey, to each their own, but I don’t mind the chaff.
Store the seed
I keep my echinacea seeds in a variety of plastic jars or containers. Zip-lock bags or plastic baggies also work well. I’ve found that the seed will remain healthy for a number of years following harvest. However, the proportion of seeds that will sprout gradually declines with time.
Additionally, I have uploaded a video to YouTube that details the procedure. In order for you to witness the entire procedure from beginning to end in action, I’ve provided a link to the video below.
Want to know the best techniques for germination of echinacea? Below is a thorough description of how to cultivate coneflower from seed that addresses any and all queries (stratification, planting depths, etc).
Is it difficult to grow Echinacea from seeds?
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.
Does echinacea reproduce on its own?
Despite the fact that the majority of us would want to spend the entire day in our gardens, real life interferes. Instead, we choose simple, low-maintenance plants that, despite only requiring a few minutes here and there of care, give the impression that we spent hours in the garden. Coneflower is a plant that I frequently recommend since it can withstand poor soil, extreme heat, drought, full sun to part shade, and it blooms continually whether you deadhead it or not.
Aren’t coneflowers sounding quite good right now? Getting better Echinacea attracts and feeds pollinators and a variety of butterflies when it is in bloom (such as Fritillaries, Swallowtails, Skippers, Viceroy, Red Admiral, American Lady, Painted Lady, and Silvery Checkerspot).
After they stop blooming, their seed-covered “cones serve as a valuable source of food for many birds from late summer to winter (such as goldfinches, chickadees, blue jays, cardinals, and pine siskins). Therefore, when people ask me about deadheading Echinacea plants, I normally advise them to only do it during the flowering period in order to keep the plant looking lovely, but to leave fallen flowers in the late summer to early winter for the birds.
In order to stop Echinacea from reseeding itself all over the garden, you can also deadhead it. Older forms of coneflower can self-seed, though not quite as aggressively as Rudbeckia. Newer hybrids typically do not self-sow and do not generate viable seed. Birds aren’t really interested in these more recent hybrids either.
Does echinacea reappear each year?
Yes, because echinacea is such a prolific self-seeder, it will come back every year and frequently in the most unexpected places.
The perennial echinacea is resilient and can withstand extremely chilly winters. Plants go dormant in the winter and reappear in the spring; you should prune them back at this time for the summer.
An important component of the appeal of these perennial favorites is the ease with which they can be grown.
Can cuttings of echinacea be grown?
It is unknown whether cold stratification is necessary for echinacea seed. Scientific research have produced contradictory findings. But Chicago Botanic Garden expert Dr. Jim Ault stratifies his echinacea seeds in the cold for 8 weeks before planting them. Surface-sow the seeds in a pot at 68F if you’re planting them indoors (20C). Compared to direct sowing, seed that is sown indoors or in a greenhouse germinates better. Plant 1/4 of the seeds directly into the garden “In the early spring, they are a few inches apart and deep. Separate or thin the seedlings after germination until there are no less than 18 plants “apart.
Clonal Echinacea plants are propagated commercially by tissue culture because they cannot be grown from seeds (micro cuttings taken in sterile lab conditions). Established clumps can be divided to produce new plants. Shake or wash the soil off the cluster by carefully lifting it after you’ve dug around it. The crown should be easy to separate by hand, though a knife might be required. Each clump will contain numerous rooted plants. Replant them right away after breaking them apart. Although no one will object if you divide plants for your own use, keep in mind that the majority of new hybrids are patented, making their propagation illegal.
Anecdotal information suggests that cut taproots and fibrous roots of Echinacea can regrow an entire plant. About 25–50% of plants hand-dug for the herbal industry sprout again the following year. All of the species, with the exception of Echinacea purpurea, produce thick, fleshy roots, including taproots, and can be multiplied through root cuttings. In the fall, place a root piece the size of a pencil standing erect (top side up) in a pot.
Echinacea can also be multiplied through basal stem cuttings. 4″ to 6″ cuttings should be taken in the spring and treated with 1000ppm IBA powder. Through tissue culture, all commercial hybrids are reproduced utilizing axillary buds, stem cuttings, or individual cells.
Should I reduce my fall Echinacea planting?
What time of year should coneflowers be pruned? Depending on your garden objectives and pruning strategy, the answer to this question may change. For further information on when you should go to your plant with the shears, see the seasonal recommendations below. Keep in mind that some pruning may occur both during the active growing season and during the dormant period.
Fall/Winter Pruning
Coneflowers can be pruned after they become dormant in the late fall or early winter if you choose to keep your garden neat during the colder months. In the fall, trimming back the dormant stalks and seed heads will lessen the likelihood of the plant naturalizing, or spreading. If the seed heads are not trimmed back, native prairie coneflower species, such as Ratibida columnifera and Ratibida pinnata, will easily spread via seed. Pruning in the fall is for you if you have a little garden that you like to maintain neat.
Spring Pruning
On the other hand, I frequently advise delaying the pruning of native plants like coneflowers until the spring for a number of reasons. First of all, during the fall and winter, these flowers offer vital nutrition to the local avian population. You’re helping the local wildlife by letting the seeds stand if your garden is big enough to support some naturalizing by native plants like coneflowers. Additionally, while some gardeners may view the spreading of plants as a drawback, others consider it as an advantage—free plants! Last but not least, seed heads add aesthetic interest to your environment during the winter, when most plants are dormant.
It is ultimately up to you and what you want for your garden whether you decide to prune your plants in the fall or the spring. Moreover, if you have a lot of coneflowers in your yard like I do, you can decide whether to prune part of them in the fall and leave others for the spring.
Cone blooms lack seeds. Where are they?
Take up the challenge of growing coneflowers from seed. Coneflower seeds are fairly obvious in gardens. They are hidden inside the sharp, spherical balls that remain when flower petals wilt. Echinacea seeds aren’t difficult to gather, and with the right techniques, they’re even simpler to grow. Find out how to collect and nurture coneflower seeds.
The garden is awash in a variety of flower hues and plant sizes thanks to modern coneflower cultivars. However, it’s a good idea to start with one of the straight species, such purple coneflower (Echinacea purpurea) or Tennessee coneflower, if you intend to grow coneflower seeds (Echinacea tennesseensis). Strong viability means that there is a good chance that these coneflower seeds will sprout.
Many contemporary hybrids’ echinacea seeds are only partially viable and occasionally sprout. Hybrids can occasionally be infertile. Additionally, keep in mind that hybrids do not reproduce from seed, so planting hybrid coneflower seeds may not result in the precise plant you desire. Include at least two different coneflower plants in your garden if you intend to save seeds because all coneflowers have a certain proportion of sterile seeds.
Snip flower stalks after petals have fallen off to preserve coneflower seeds. Cut the stem as long as you can. This stem should be inserted into a paper bag with the spikey flower head facing the bottom of the bag. More than one stem can fit in a single bag. Using a rubber band, twist tie, or piece of twine, secure the bag around the stem’s base. The bag should be hung in a basement, dry garage, or closet. Seeds from dried flower heads will drop into the bag. The coneflower seed looks like a little white triangle.
After the seeds have germinated, separate them from the dreary chaff and let them air dry for a few days. Echinacea seeds should be kept in a cool, dry area. Put seeds in sealed jars and place them in the refrigerator for long-term preservation. Coneflower seeds are best planted within a year of harvest, even though they can be stored for as least seven years.
Even plant scientists disagree on the subject of whether the stratification process is necessary for the germination of coneflower seeds. Many backyard growers who use winter sowing techniques report great germination outcomes. Seedlings should be separated and tucked into the garden in the spring. Additionally, you can move seedlings into pots to allow them to mature before being incorporated into a landscape planting. This is a smart move if your garden attracts animals that eat plants, such as deer, squirrels, or rabbits.
Since many of the new coneflower hybrids are patented types, it is against the law to produce more of them. Plant patent owners normally have nothing against a home gardener cultivating a few coneflower plants from seed for their own garden. But you shouldn’t increase the number of patented coneflowers for sale or for use by others.
Allowing seed heads to ripen and dry on plants is another method for growing coneflower seeds. Break separate seed heads in the fall and scatter seeds where you wish new coneflowers to appear. Alternately, let coneflowers self-seed naturally. When produced from seed, the majority of coneflowers take two growing seasons to flower.