Should You Let Your Coneflower Go to Seed? Why Gardeners Say It Depends on Your Garden Goals
Key Points Letting coneflowers go to seed supports natural reseeding, saving you the hassle of replanting. Dried seed heads act like a self-sustaining bird feeder, attracting and feeding goldfinches, sparrows, and other birds through fall and winter. Coneflower seed heads add texture and seasonal charm to your garden’s autumn look. If you've been maintaining your coneflowers all season long and aren't sure what to do next, we asked pro gardeners to weigh in on whether you should let them seed or not. They share everything you need to know when it comes to seeding and all the benefits that come along with it, so you can have a flourishing garden for next year. Meet the Expert Edwin Dysinger is the co-founder of Seedtime, a garden planning and management app. JoJami Tyler is a certified Gardenary coach and founder of Fancy Pants Gardens. Tracy Smith is an outdoor green goods buyer for Terrain. Should You Let Coneflowers Seed? Yes, you should let your coneflowers seed, as there are many great benefits that come with it after the gardening season is over, our gardening pros say. Letting them go to seed is the process of letting the central cone dry out, which will become dark and spiky to the touch, Tracy Smith, an outdoor green goods buyer for Terrain, explains. "Coneflowers, also known as Echinacea, are wonderful additions to your garden; however, they are prolific and if allowed to go to seed, will naturally reseed themselves, often returning the next season with even greater vigor," JoJami Tyler, a certified Gardenary coach and founder of Fancy Pants Gardens, says. All the Benefits of Seeding Your Coneflowers The seeds are a valuable food source for birds. Coneflower seeds provide forage for wildlife, especially birds, during the fall and winter time, Edwin Dysinger, the co-founder of Seedtime, explains. "The seeds are a magnet for birds, especially goldfinches in late summer and fall, helping sustain local wildlife. It’s like having a natural birdfeeder that you never have to maintain," Tyler says. Other bird types you can expect to see are sparrows, towhees, and finches, Smith says. They'll reappear next year. If you're looking to have coneflowers in your garden the following year, letting them seed will allow them to naturally grow without the worry of replanting. Tyler explains how this is a great method for filling in gaps in the garden with hardy blooms, especially if you have a lot of space to cover. Visual aesthetic. Smith explains how the texture and color of the dark seed heads will create an attractive visual aesthetic to the garden, especially as we approach fall. How to Help Your Coneflowers Seed Leave the seed heads intact. After your coneflowers have flowered, don't deadhead them, Tyler says. Instead, she recommends letting the blooms dry out and form seed heads. " In autumn, as the flower fades, seeds will mature and begin to drop," Tyler explains. Distribute seeds manually. Once they're dry, collect the mature seed heads and separate them by gently rubbing. Then, scatter them over your soil and gently water, Tyler says. "Seeding in the fall is especially helpful because it allows the seeds to naturally cold stratify on their own. But it can also be done in the spring once soil temperatures have reached 65°F or more," Dysinger says. Cover them lightly. Since coneflower seeds are tiny and need some light to properly germinate, Tyler suggests slightly pressing or sprinkling the soil on top instead of burying them deeply. How to Seed Coneflowers Indoors Sow the seeds. Dysinger recommends sowing the seeds indoors six to eight weeks before the last frost using a good, moist soil mix. Either minimally cover or don't cover the seeds at all for proper germination. Let them germinate. The germination process will take around 10-20 days, so make sure there's enough light. Transplant outdoors. Once the seedlings have two to three true leaves and there's no danger of frost, move them outdoors.
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