Pinguicula gigantea Stunted: Soil Mix Too Acidic

P. gigantea in peat/sand (likely 1:1) shrank and stalled. Neighbor P. 'Alfred' (SNW) thrives in coarse mineral mix. Both under T5, fertilized biweekly.

Problem: Peat-Based Mix Too Acidic

Mexican butterworts prefer slightly alkaline, granular media. Peat breaks down, acidifies, compacts. SNW mix: 25% peat for moisture, 75% perlite/sand for drainage and pH.

Fix

1. Repot P. gigantea into coarse mix (perlite/sand dominant, ≤25% peat).
2. Use Grow More fertilizer (contains calcium, maintains alkalinity).
3. Or adjust current mix: 3 parts sand : 1 part peat.

Peat/sand can work if sand dominates. Fresh mix + calcium fertilizer = recovery.