Agave ovatifolia
Whale's tongue agave is a large, solitary, blue-grey rosette with broad cupped leaves. It comes from a few limestone ranges in Nuevo León. It is one of the more cold-hardy large agaves when kept dry, and it needs full sun and sharp drainage.
Where it grows wild
Grows on stony limestone slopes, in open oak–pine woodland and grassland, alongside Yucca rostrata and cacti.
The literature gives 1100–1300 m. The records carry too few elevations to check this.
🔒 Growing it like that
The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY-SA 4.0 licence, unmodified.