Pinguicula primuliflora Plantlet Propagation: Root Development First, Winter Submersion Technique

Successfully Propagating Leaf Plantlets of a Temperate Butterwort

Grower removed two plantlets from P. primuliflora leaves, potted in peat/perlite, watered—curled up and died in a week.

Expert Protocol (Jeff Dallas)

P. primuliflora (US native) needs winter rest. Without it, plants "give up" mid-late winter.

Propagation Success Steps

1. Wait for significant root system on plantlets before removal.
2. Winter: cool location, natural light/winter photoperiod.
3. Experimental submersion: Pot submerged to leaf level in low-mineral water (change weekly). Simulates seasonal bog flooding. Return to tray watering in spring.

Follow-Up: Grower Trying Submersion

Grower has plant (possibly P. lutea—yellow flowers) filling pot with plantlets. Was refrigerating in bag; switching to submersion + basement window (55°F). First Pinguicula to survive >2 weeks without outside-in rot.

Resource

Disease article: pinguicula.org ("Rosette Edge to Center Death" for SE US species).