Accepted name: Symphyotrichum puniceum
Purple Stemmed Aster
syn. Swamp Aster
60 - 90 cm
July - August
sun - partial shade
acid - neutral - alkaline
Aster belongs to the family Asteraceae. It's species are native to meadows in temperate regions of the northern hemisphere, the majority in N-America. They grow best in, moist, fertile soil and prefer a sunny position. Most Asters flower late in the summer and through fall, but the species mainly grown in Iceland are alpines that flower earlier, in July-August.
Division in spring.
Seed sown in March.
Seed just covered and kept at 20°C (68°F) until germination. If there is no germination in 4 weeks, it could be helpful to place the seed tray in a refrigeraton for 2-4 weeks and then move it back to 20°C (68°F). After germination it should be kept at a lower temperature with plenty of light so the plants won't become lanky.
Tall plant that spreads fairly quickly with rhizomes. Needs support.