Germination of
Asclepias speciosa
Showy Milkweed: Red milkweed, Asclepias speciosa
Asclepias speciosa seeds require a period of cold stratification before they will germinate. Begin by sowing the seeds in a well-draining soil mix in a pot or seed tray. Place the pot or tray in the refrigerator for 4-6 weeks. After the stratification period is over, move the pot or tray to a warm, bright location and keep the soil moist. The seeds should begin to germinate in 1-3 weeks.
Some of plants may have very have specific germination requirements that may not be covered in these general instructions.
Many seeds require pre-treatment before sowing which we try to list here when we can, but this information may not be present here. Germination times and germination temperatures are to be a guide only. Many factors can DRASTICALLY affect this.
It's always a good idea to research the specific germination requirements from multiple sources for each plant before attempting to grow them from seed.