how fast do milkweed plants grow
It takes at least a month for the plant to be ready for the larvae to eat. Once the plant is big enough, you can simply place the entire plant, pot and all, into the cage. After the larvae have eaten the leaves, simply cut the plant off about two inches above the soil and new shoots will grow in 3-4 weeks.he seeds will take approximately 10 days to germinate. Once there are 4 true leaves on the seedlings (the seedlings will be approximately 3 inches tall), the plants can be transplanted into your garden. Most milkweed species do best in full sunlight, so choose an open area with lots of sun.