To allow for natural stratification sow collected seeds directly into a mulched bed in the fall and the seed will germinate the following spring. Moreover it is easy to check the plant from spreading.
How can I grow milkweed from seed.
How to grow milkweed from seed. I believe the plant is Swamp Milkweed. Prepare a planting hole thats twice as deep and twize as wide as the root ball of your milkweed plant. Use a stick to poke a hole in the rooting medium and gently insert the base of the milkweed stem.
This method works well only in areas that have cold winters. Simply cut off the seed pods before they open. If you have grow lights or a greenhouse it is best to start your milkweed seeds indoors a couple of months before you are able to transplant them outdoors.
Chill in a refrigerator at least 30 days. When emerging milkweeds have three to four sets of leaves thin seedlings to 6 inches apart. Milkweed seeds can be started directly in water with no cold treatment although germination rate might be less for some species.
Since we are located in Southern California we are sowing Narrow-Leaf Milkweed Asclep. Starting Milkweed Seeds Indoors If you want to start the plants indoors place seeds between moist paper towels inside a sealed plastic bag or plant the seeds directly into peat pots covered with a sealed plastic bag. Push the rooting medium firmly around the stem to provide support.
Act like Mother Nature. But it does not spread as much as the common milkweed. Monarch caterpillars feed exclusively on the leaves of milkweed the only host plant for this iconic butterfly species.
As such milkweed is critical for the survival of monarchs. Plant cold-treated seeds in a moist seed-starting potting mix. Plant seeds directly in a garden bed in the fall to cold-treat outdoors.
How To Plant Milkweed. Do not cover the seeds. Since the plant will self-seed some gardeners may find it a bit too easy to grow.
First leaves of narrow leaf milkweed after germination Here at TPF we sow the seeds into small plug trays but any container preferably one gallon or smaller will work. I snatched the following quote from the National Wildlife Federation website. Avoid direct sunlight while the milkweed is.
Place milkweed cuttings in a shady area outside. Put milkweed seeds in a bowl of water Place the bowl inside a plastic baggie OR just place seeds in a container. If the roots are clinging to the sides of the pot you can rough up.
You can plant milkweed seeds in early spring as soon as the soil can be worked but they will need to be stratified for 2 to 3 months in the refrigerator before planting in spring for better germination. For the best results when growing milkweeds from seed simply go outdoors anytime from late fall through mid-winter and drop milkweed seeds wherever you want them in the garden just like Mother Nature does. Milkweed seed can be planted directly in soil or started indoors.
Learn how to plant milkweed for monarchs from seed or starter plants. One reason some people do not choose this method is that the seedlings grow. Milkweed seeds do need a period of cold-treatment in order.
Step-By-Step Instructions Start with healthy plants that have developed root systems. For most of the summer these plants grow up and branch out and then AugustSeptember hits and the pods start. Start by filling your container with any seed-starting or high-drainage potting medium typically cactus mixes or anything with added perlite including TPFs own custom mix.
You can sow milkweed seeds by scattering them on the soil surface 14-12 inch apart and then cover them with about 14 inch of additional soil. There are surely better-behaved plants to grow in a mixed flower bed than showy milkweed. Simply press them against the soil with your hand or the sole of your shoe.
Starting these seeds in my greenhouse in early March is essential to Hairy Balls producing the balloon shaped pods by the end of the summer. Starting seeds indoors in winter.