Troubleshooting
Lincoln Pea problems — and how to fix them
Lincoln Pea (Pisum sativum 'Lincoln') 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.
Powdery mildew (late season)
Lincoln has moderate resistance but can still be affected as temperatures warm. Harvest promptly and remove spent plants rather than composting if heavily infected.
Pea aphids
Clusters of grey-green aphids on growing tips cause distortion and sticky honeydew. Blast off with water, introduce ladybirds/lacewings, or use an insecticidal soap spray.
Damping off in cold, wet springs
Seeds rot before emergence in cold, waterlogged soil. Wait until soil reaches 7°C, improve drainage, and avoid over-watering in early spring. Pre-treating seed with a copper-based drench helps.
Prevent lincoln pea problems before they start
Most lincoln pea issues are care-mismatch, not bad luck. Dial in the basics:
Looking for lincoln pea in general rather than its problems? Read the full lincoln pea care guide — light, water, soil and feeding.
Lincoln Pea problems — FAQ
Why is my lincoln pea powdery mildew (late season)?
Lincoln has moderate resistance but can still be affected as temperatures warm. Harvest promptly and remove spent plants rather than composting if heavily infected.
Why is my lincoln pea pea aphids?
Clusters of grey-green aphids on growing tips cause distortion and sticky honeydew. Blast off with water, introduce ladybirds/lacewings, or use an insecticidal soap spray.
Why is my lincoln pea damping off in cold, wet springs?
Seeds rot before emergence in cold, waterlogged soil. Wait until soil reaches 7°C, improve drainage, and avoid over-watering in early spring. Pre-treating seed with a copper-based drench helps.