Troubleshooting
Bitterroot problems — and how to fix them
Bitterroot (Lewisia rediviva) 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.
Summer rot
Any moisture reaching the dormant root crown in summer causes rapid rot. In continental climates, the dry summer solves this naturally. In the UK or Pacific Northwest, dry storage or alpine house culture is necessary.
Extremely difficult in cultivation outside native range
Very hard to keep long-term in areas with wet summers or mild winters. Best approached as an alpine house specimen or grown in deep terracotta pots that can be completely withheld from summer rain.
Slow to establish from seed
Seeds require warm stratification then cold stratification (double dormancy) and germination can take 2 years. Plants take 3–5 years to flower from seed. Patience is essential.
Prevent bitterroot problems before they start
Most bitterroot issues are care-mismatch, not bad luck. Dial in the basics:
Bitterroot problems — FAQ
Why is my bitterroot summer rot?
Any moisture reaching the dormant root crown in summer causes rapid rot. In continental climates, the dry summer solves this naturally. In the UK or Pacific Northwest, dry storage or alpine house culture is necessary.
Why is my bitterroot extremely difficult in cultivation outside native range?
Very hard to keep long-term in areas with wet summers or mild winters. Best approached as an alpine house specimen or grown in deep terracotta pots that can be completely withheld from summer rain.
Why is my bitterroot slow to establish from seed?
Seeds require warm stratification then cold stratification (double dormancy) and germination can take 2 years. Plants take 3–5 years to flower from seed. Patience is essential.