Darlingtonia Winter Repotting and Lava Rock Substitutes

Zone 7 grower: asked if Dec/Jan repotting harms Darlingtonia, and lava rock substitutes.

Answers

Winter repotting fine – minimize root disturbance.
More perlite or pumice replaces lava rock. Nursery moving away from lava rock – hard to find, questionable benefit.

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