Troubleshooting
Bog rosemary problems — and how to fix them
Bog rosemary (Andromeda polifolia) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Chlorosis from alkaline soil
Yellowing between leaf veins indicates the soil pH has risen above 5.5 — usually from tap water or inappropriate compost. Use rainwater for irrigation, apply sulphur chips, and switch to a dedicated ericaceous (acidic) compost.
Wilting from drought
Even brief drying out causes rapid wilting and leaf curl. In bog gardens, maintain the water level; in containers, place in a saucer with standing water or use a self-watering system. Never let the medium dry between waterings.
Phytophthora root rot in stagnant, warm water
Although the plant tolerates wet soil, warm stagnant water in summer can encourage root rot pathogens. Ensure some through-flow of fresh water and avoid placing in low spots that collect warm standing runoff.
Prevent bog rosemary problems before they start
Most bog rosemary issues are care-mismatch, not bad luck. Dial in the basics:
Bog rosemary problems — FAQ
Why is my bog rosemary chlorosis from alkaline soil?
Yellowing between leaf veins indicates the soil pH has risen above 5.5 — usually from tap water or inappropriate compost. Use rainwater for irrigation, apply sulphur chips, and switch to a dedicated ericaceous (acidic) compost.
Why is my bog rosemary wilting from drought?
Even brief drying out causes rapid wilting and leaf curl. In bog gardens, maintain the water level; in containers, place in a saucer with standing water or use a self-watering system. Never let the medium dry between waterings.
Why is my bog rosemary phytophthora root rot in stagnant, warm water?
Although the plant tolerates wet soil, warm stagnant water in summer can encourage root rot pathogens. Ensure some through-flow of fresh water and avoid placing in low spots that collect warm standing runoff.