You can start butterfly weed seeds indoors. To do this, you’ll need a garden flat filled with a good quality of well-moistened germination medium.
In fact, it spreads best by reseeding… replanting is not a very effective method of propagation for these plants.
Simply scatter seeds evenly in a prepared bed. Then cover seed lightly with a quarter inch of soil and water gently and deeply.
How To Grow Butterfly Weed Seed Indoors
Nope! This native plant known as the pleurisy root is easy to grow and grows like a weed!
There’s no need to wait for plants to establish themselves before reaping the benefits.
You may get less than stellar results in one part of your yard and superb results in another.
These variations add a great deal of cheer and diversity to your wildflower and butterfly garden setting.
When the seeds are ready to be harvested, butterfly weed seed pods will turn brown and start to break open on their own.
Butterfly weed seeds are flat, brown and shaped like a tear drop – and there are a ton of seeds in each seed pod.
When To Harvest Butterfly Weed Seeds
It can be difficult to find butterfly weed seeds for sale, but many garden centers should carry them starting in mid-winter through early spring.
I like to use a plastic shoe box to organize my seeds, or you can use a Seed Keeper.
I would just leave the pods on your butterfly weed plant until they ripen. I don’t think transplanting it would make a difference. Also, butterfly weed plants are super hardy, so frost won’t hurt the plant or the seed pods.
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Asclepias tuberosa (Orange Butterfly Weed) – this perennial stays dormant until later in the spring than many other plants, especially when grown in pots. It’s fine to plant dormant plants; don’t up-pot them for planting later in the growing season.
They can be successfully seeded outdoors in fall in areas that received frost, for spring germination. For mid to late spring planting, all species (A. tuberosa, A. syriaca, A. sullivantii, A. incarnata) will also germinate moderately well when seeded into warm ground after being stratified (chilled).
Oftentimes, Milkweeds won’t grow much their first season in the ground, so be patient. They are establishing their root system and crown. By the second growing season, the plants will begin to get bigger and look more robust. Asclepias species are an odd bunch and don’t behave like many other more familiar perennials. So be patient and accept their quirky nature.
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