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Species library › Utricularia › Utricularia garrettii
Carnivorous Little published: much of this is inferred from related species

Utricularia garrettii

Utricularia garrettii is a tiny terrestrial bladderwort known only from the summit area of Doi Inthanon, Thailand's highest mountain. It grows on wet rocks, mossy tree trunks and damp soil banks near the summit bog at about 2,150–2,560 m, and is very close to the widespread U. striatula. It is rarely, if ever, in cultivation; treat it as a cool, constantly moist montane species.

At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Humid airBand in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
No rest periodGrows on rock (lithophyte)

Where it grows wild

Wikipedia describes it as a lithophyte on moist rocks. A 1994 herbarium record from just below the summit, near the bog, adds tree trunks and soil embankments in primary evergreen hardwood (cloud) forest on granite, in mostly open to partly shaded spots. Like U. striatula, it presumably forms thin mats of tiny leaves with bladders in a film of moss and water.

Only known from about 2,165–2,560 m on Doi Inthanon (collections from 1910 at 2,165–2,175 m and from 1994 at about 2,560 m).

Thailand

🔒 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.