Troubleshooting
Sticky Santolina problems — and how to fix them
Sticky Santolina (Santolina viscosa) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Root rot on non-gypsum soils
S. viscosa is specialised to gypsum substrates and can struggle in ordinary garden soils; mix in grit and chalk when planting or grow in a dedicated scree or alpine bed.
Winter cold damage in northern gardens
This southeastern Spanish endemic is less frost-hardy than many Santolina species; in the UK grow against a warm south-facing wall or in a cold greenhouse in USDA zone 7 or colder regions.
Prevent sticky santolina problems before they start
Most sticky santolina issues are care-mismatch, not bad luck. Dial in the basics:
Sticky Santolina problems — FAQ
Why is my sticky santolina root rot on non-gypsum soils?
S. viscosa is specialised to gypsum substrates and can struggle in ordinary garden soils; mix in grit and chalk when planting or grow in a dedicated scree or alpine bed.
Why is my sticky santolina winter cold damage in northern gardens?
This southeastern Spanish endemic is less frost-hardy than many Santolina species; in the UK grow against a warm south-facing wall or in a cold greenhouse in USDA zone 7 or colder regions.