Plants to Propagate in September

"Person trimming a healthy rosemary plant with scissors, growing in a terracotta pot on a wooden surface, with a green metal container in the softly blurred background."

September is ideal for propagating a wide range of plants using layering and semi-ripe cuttings, as stems begin to firm while soil remains warm. Hardy shrubs, climbers, herbs, and berry plants like honeysuckle, hydrangea, clematis, and raspberries root reliably during this transitional month.