Will reseed readily if conditions are right.
A full sun position will ensure your plant thrives and remember to water moderately. Keep in mind when planting that Sunset Flower is thought of as tender, so it is really important to ensure that the outside temperature is well above freezing before planting or moving outdoors. Sunset Flower tends to grow best in a soil ph of between 6.1 and 7.5 meaning it does best in weakly acidic soil - weakly alkaline soil.By our calculations, you should look at sowing Sunset Flower about 15 days after your last frost date.
During WWII the silky part attached to the seeds was used for life jackets.123 Milkweed is more bouyant then cork by 5 or 6 fold.123
Blood Flower
1 Native Plant Society of Texas
3 “Your Country’s Armed Services Need Milkweed Floss: How You Can Help” :https://archive.org/stream/YourCountrysArmedServicesNeedMilkweedFlossHowYouCanHelp/YourCountrysArmedServicesNeedMilkweedFlossHowYouCanHelp_djvu.txt