Hi, Kathy. For bushier zinnias, you need to cut back stems while the plant is young. If your zinnias get too tall, you can do a hard pruning by cutting back the plant by about two-thirds. Reply
Hi, Kathy. For bushier zinnias, you need to cut back stems while the plant is young. If your zinnias get too tall, you can do a hard pruning by cutting back the plant by about two-thirds.