Powdery Mildew on potted indoor Rosemary plant

Good morning. I live in Toronto and have a 3-4 year old potted rosemary that I have been successfully overwintering indoors. Right now though, it is rapidly getting overcome by powdery mildew- worse at the top- and it needs immediate…

How to Grow Rosemary: A Toronto Master Gardeners Guide

Rosemary (Salvia rosmarinus, formerly Rosmarinus officinalis). Rosemary is a perennial herb, which pairs particularly well with lamb dishes and can be used for making flavoured oils or vinegars. Rosemary is native to the Mediterranean and only hardy to Zone 8.…

Problematic Rosemary

This is a first year rosemary plant (my five year old bush died in the winter ) and is presently outside. I noticed these yellow and black areas on some lower leaves. What is it and what can I do?…

Replanting herbs

Last year, I had some good success with sage, basil, chives, thyme, and rosemary. Excuse my ignorance, but do I need to dig those up and replant new ones, or just tend to the plants from last year. If just…