What Do I Do With Alliums Once The Flowering Is Complete?

Question

Do I cut the stem by half like we do with tulips?

Answer 1

Simply, deadhead the spent bloom stalks! Make sure to avoid cutting leaves. Here are some articles that will help:

https://www.gardeningknowhow.com/ornamental/bulbs/allium/allium-post-bloom-care.htm

https://www.gardeningknowhow.com/ornamental/bulbs/allium/growing-alliums.htm