Troubleshooting
Pelargonium 'Occold Lagoon' problems — and how to fix them
Pelargonium 'Occold Lagoon' (Pelargonium 'Occold Lagoon') 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.
Black-leg / stem rot
Stem base blackens after overwatering or cold, wet compost; water sparingly and use a free-draining mix.
Leggy growth, few flowers
From insufficient light or missed feeding; move to full sun and feed with high-potash fertiliser in the growing season.
Pelargonium rust
Brown pustules under the leaves in humid conditions; remove affected leaves and improve ventilation.
Aphids and whitefly
Cluster on soft shoots and buds, distorting growth; rinse off or treat with insecticidal soap.
Prevent pelargonium 'occold lagoon' problems before they start
Most pelargonium 'occold lagoon' issues are care-mismatch, not bad luck. Dial in the basics:
Looking for pelargonium 'occold lagoon' in general rather than its problems? Read the full pelargonium 'occold lagoon' care guide — light, water, soil and feeding.
Pelargonium 'Occold Lagoon' problems — FAQ
Why is my pelargonium 'occold lagoon' black-leg / stem rot?
Stem base blackens after overwatering or cold, wet compost; water sparingly and use a free-draining mix.
Why is my pelargonium 'occold lagoon' leggy growth, few flowers?
From insufficient light or missed feeding; move to full sun and feed with high-potash fertiliser in the growing season.
Why is my pelargonium 'occold lagoon' pelargonium rust?
Brown pustules under the leaves in humid conditions; remove affected leaves and improve ventilation.
Why is my pelargonium 'occold lagoon' aphids and whitefly?
Cluster on soft shoots and buds, distorting growth; rinse off or treat with insecticidal soap.