Cold hardiness & minimum temperature

Is Araza (Eugenia stipitata)cold hardy? Hardiness zone & min temp

Also called Araza, Arazá, Araza-Boi, Amazon Tree Grape.

More about araza

About Araza

Eugenia stipitata · also called Araza, Arazá · tropical

A small Amazonian shrub or tree producing clusters of large, vivid yellow fruits with intensely tart, tropical flavour — a blend of pineapple and passion fruit. Araza demands warmth, high humidity, acidic soil, and consistent moisture throughout the year. Exceptionally sensitive to frost; it fruits within 3 years from seed, making it a rewarding container tropical.

Cold limit: USDA 10b–11 · RHS H1a (18–34 °C)

Watch for — Cold damage and frost sensitivity: Araza is among the most cold-sensitive Eugenia species. Even brief temperatures below 10 °C cause leaf blackening and dieback; frost is lethal. Move plants indoors promptly in autumn, maintain a minimum overnight temperature of 15–18 °C, and protect from cold draught.

What araza's hardiness rating actually means

Araza 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 10b–11 — 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). Araza has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for araza 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 araza 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 araza can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1a figure above.

Araza hardiness — frequently asked questions

Is araza cold hardy?

Araza 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. Araza can only live outside year-round in genuinely frost-free climates (roughly USDA 10b–11); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature araza can survive?

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

What hardiness zone is araza?

Araza is rated USDA 10b–11 and RHS H1a — Tropical — needs a heated room or greenhouse; no frost tolerance whatsoever.

Can araza 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 araza 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.