Upright, perennial coneflower about 90cm tall, producing reddish-purple daisy-like flowers with narrow, toothed ray-petals, surrounding a prominent, slightly pointed, central dark orange cone, ...
A: Yes, you can, but if you want all of your flowers next year — don’t do it! Lilacs are a spring blooming shrub. Most spring blooming flowers form their flower buds from August to October.