Cold hardiness & minimum temperature

Is Cutite (Pouteria macrophylla)cold hardy? Hardiness zone & min temp

Also called Cutite, Lucmo (regional), Amazon Egg Fruit.

More about cutite

About Cutite

Pouteria macrophylla · also called Cutite, Lucmo (regional) · tropical

Cutite is a rare Amazonian fruit tree in the Sapotaceae family, native to the non-flooded lowland rainforests of Brazil, Surinam, French Guiana, Peru, and Bolivia. Its fruits have thick, starchy-sweet pulp reminiscent of egg yolk with a strong, pleasant aroma — characteristic of the genus. Extremely uncommon in cultivation outside South America; requires a consistently warm, humid tropical environment.

Cold limit: USDA 11–12 · RHS H1a (22–35°C)

Watch for — Root rot in cold or wet conditions: Cutite has no cold tolerance and is sensitive to root rot if soil remains wet at temperatures below 18°C. In cooler months, reduce watering frequency and ensure excellent drainage to prevent fungal root pathogens.

What cutite's hardiness rating actually means

Cutite is not cold hardy. It is a tropical houseplant that dies if it is left out through frost — there is no zone where it overwinters outdoors in a UK or cold-US climate. Its RHS rating of H1a means: Tropical — needs a heated room or greenhouse; no frost tolerance whatsoever. On the US scale that maps to USDA 11–12 — the zones where it can be left outdoors year-round.

New to these scales? The USDA hardiness zone map explained covers how the zone numbers work, and you can find your own zone with the zone finder.

Minimum temperature — and what happens below it

Minimum survivable temperature is roughly above about 15 °C (warm, never cold). Cutite has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for cutite as it gets too cold:

Below about above about 15 °C, growth stalls and the leaves start to show cold stress — dark, water-soaked, or yellowing patches.
A single light frost blackens the foliage; a hard freeze kills the whole plant, roots included, and it does not recover.
Even a cold, draughty windowsill or an unheated porch in winter can be enough to damage it permanently.

Can cutite go outside or overwinter — and where?

It can holiday outdoors in summer once nights are reliably above above 15 °C, in shade or dappled light, hardened off gradually.
Bring it back indoors well before the first autumn frost — do not wait for a frost warning, move it when nights drop toward 10-12 °C.
It will never overwinter outside in a temperate climate; the indoors is its winter home, full stop.

Work back from your local frost dates with the frost-date calculator: the last spring frost and first autumn frost are what really decide when cutite can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1a figure above.

Cutite hardiness — frequently asked questions

Is cutite cold hardy?

Cutite is not cold hardy. It is a tropical houseplant that dies if it is left out through frost — there is no zone where it overwinters outdoors in a UK or cold-US climate. Indoor-only in almost every home. Cutite can only live outside year-round in genuinely frost-free climates (roughly USDA 11–12); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature cutite can survive?

Minimum survivable temperature is roughly above about 15 °C (warm, never cold). Cutite has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

What hardiness zone is cutite?

Cutite is rated USDA 11–12 and RHS H1a — Tropical — needs a heated room or greenhouse; no frost tolerance whatsoever.

Can cutite survive winter outside?

It can holiday outdoors in summer once nights are reliably above above 15 °C, in shade or dappled light, hardened off gradually. Bring it back indoors well before the first autumn frost — do not wait for a frost warning, move it when nights drop toward 10-12 °C. It will never overwinter outside in a temperate climate; the indoors is its winter home, full stop.

What happens to cutite below its minimum temperature?

Below about above about 15 °C, growth stalls and the leaves start to show cold stress — dark, water-soaked, or yellowing patches. A single light frost blackens the foliage; a hard freeze kills the whole plant, roots included, and it does not recover. Even a cold, draughty windowsill or an unheated porch in winter can be enough to damage it permanently.