Bacterial Gall on Rosemary Stems

Scaly growths on older rosemary stems are bacterial galls. Not fast-spreading. Keep the plant until it becomes too unsightly.

About Gardening: Oak Galls in Arizona: Tiny Wasps, Harmless Growths; Transplanting Established Rosemary: Timing and Technique; Creative Crafts Using Rosemary: Soaps, Candles, and Fragrance Oils; Understanding Plant Stems: Structure, Function, and Pruning Effects; Leaf Gall on Leucothoe: Exobasidium Fungus; Gouty Oak Gall: Strange Growths on Oak Trees; Camellia Leaf Gall: Ugly but Harmless—Pick It Off; Bog Rosemary: Looks Like Rosemary, Isn't Edible, Hates Georgia Heat; Witchhazel Gall Aphids: Strange Growths, Harmless Outcome; Maple Eyespot Gall: Colorful but Harmless Midge Damage

Garden Articles

Plants