Echeveria megacalyx

A south-central Mexican Echeveria described by Walther in 1959, named for its large calyx. It forms solitary or clustered rosettes of 15–40 leaves and bears flowers red below and yellow above, on stems 30–70 cm tall. It grows on road banks, in open oak woodland and dry scrub in Oaxaca, Puebla and Veracruz at about 1640–2900 m.

At home, aim for

Day Cool-growingTargets in Plantistry

Night A clear drop at nightTargets in Plantistry

Humidity Dry airBand in Plantistry

Light Full sunDLI and PPFD in Plantistry

Expects a seasonal restGrows in the ground

Where it grows wild

Labels record open oak woodland, the edge of oak and thorn scrub, low deciduous forest with sclerophyll scrub, Brahea and columnar cacti, and road banks. It grows in open, rocky ground.

Recorded at 596–2900 m, median 2373 m; most records lie between 1640 and 2900 m.

Mexico (Oaxaca)Mexico (Puebla)Mexico (Veracruz)

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates

✓ Humidity band, and how to hold it

✓ Light as DLI and PPFD for a grow light

✓ Wet and dry seasons, and whether to rest it

✓ Substrate and airflow

✓ A step-by-step setup to grow it like the wild

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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.