Citrus limon

Lemon

The lemon is a small evergreen tree grown for its sour fruit; it is a hybrid of citron and bitter orange that probably arose in northeastern India and exists today only in cultivation. It wants full sun, warmth, a mild frost-free winter and a free-draining, slightly acidic mix. In pots it grows well indoors in winter and outdoors in summer.

Citrus limon — Photo: Franz Eugen Köhler, Köhler's Medizinal-Pflanzen, Public domain, via Wikimedia Commons

At home, aim for

Day IntermediateTargets in Plantistry

Night Close to the dayTargets 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

A cultivated tree with no truly wild populations. It is grown in orchards and gardens in Mediterranean, subtropical and tropical-highland climates.

Cultivated records run from sea level to about 2,800 m (median 291 m); commercial lemon growing is mostly below about 1,000 m in the subtropics.

Northeastern India (origin, cultivated)Cultivated worldwide in warm climates

🔒 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. Photo from Wikimedia Commons, used under its Public domain licence, unmodified.