Troubleshooting
Psyllium problems — and how to fix them
Psyllium (Plantago ovata) 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.
Seed head mould in humid conditions
Botrytis and other moulds can infect ripening seed heads in wet, humid weather. Harvest promptly when seed heads are 50% brown; dry thoroughly indoors before storage.
Poor germination in cold soil
Germination fails below 10°C. Sow after last frost when soil has warmed, or start indoors 4-6 weeks before last frost. Ideal germination temperature is 20-25°C.
Root rot in heavy or waterlogged soil
Highly susceptible to crown and root rot if drainage is poor. Raise beds, amend with grit or perlite, and avoid clay-heavy soils. Container growing with drainage holes is effective.
Prevent psyllium problems before they start
Most psyllium issues are care-mismatch, not bad luck. Dial in the basics:
Psyllium problems — FAQ
Why is my psyllium seed head mould in humid conditions?
Botrytis and other moulds can infect ripening seed heads in wet, humid weather. Harvest promptly when seed heads are 50% brown; dry thoroughly indoors before storage.
Why is my psyllium poor germination in cold soil?
Germination fails below 10°C. Sow after last frost when soil has warmed, or start indoors 4-6 weeks before last frost. Ideal germination temperature is 20-25°C.
Why is my psyllium root rot in heavy or waterlogged soil?
Highly susceptible to crown and root rot if drainage is poor. Raise beds, amend with grit or perlite, and avoid clay-heavy soils. Container growing with drainage holes is effective.