Turbinicarpus lophophoroides f. cristatus

In a cement pot by Prickly Point This crested mutant behaves as a dedicated summer grower, syncing its main cellular expansion and intricate crest development with high temperatures and seasonal summer rains. Because the mutation tightly compresses the plant's tissue and increases the number of narrow folds, it is exceptionally vulnerable to trapping moisture and developing fungal rot in stagnant air. In cultivation, it requires a radically lean, strictly mineral-dominant, well-aerated substrate (such as 85% pumice and crushed granite or limestone grit) and must be watered with extreme care only when the potting mix is bone-dry during the peak of summer, keeping it completely dry and cool throughout its deep winter dormancy.