Troubleshooting
Sea Sandwort problems — and how to fix them
Sea Sandwort (Honckenya peploides) 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 from waterlogging
The single most common cause of plant death in cultivation; even brief waterlogging in heavy soil rots the roots quickly. Always use very free-draining compost and avoid overhead irrigation.
Slug damage
Young shoots are attractive to slugs, particularly in damp weather. Use grit or gravel mulch around the plant, which slugs dislike crossing, or apply organic iron-phosphate pellets.
Prevent sea sandwort problems before they start
Most sea sandwort issues are care-mismatch, not bad luck. Dial in the basics:
Sea Sandwort problems — FAQ
Why is my sea sandwort root rot from waterlogging?
The single most common cause of plant death in cultivation; even brief waterlogging in heavy soil rots the roots quickly. Always use very free-draining compost and avoid overhead irrigation.
Why is my sea sandwort slug damage?
Young shoots are attractive to slugs, particularly in damp weather. Use grit or gravel mulch around the plant, which slugs dislike crossing, or apply organic iron-phosphate pellets.