Cold hardiness & minimum temperature

Is Ficus Audrey (Ficus benghalensis)cold hardy? Hardiness zone & min temp

Also called banyan tree, Indian banyan, Audrey fig.

About Ficus Audrey

Ficus benghalensis · also called banyan tree, Indian banyan · houseplant

Ficus Audrey is the sacred banyan tree of India, sold as a sturdy indoor tree alternative to the fiddle-leaf fig. Velvety oval leaves on a pale trunk and less drama than its cousin. Mildly toxic to pets through ficin in the milky sap.

Ficus benghalensis, the Bengal fig or sacred banyan of the Indian subcontinent, where mature trees drop aerial roots that thicken into accessory trunks; indoors in the UK it must stay under glass year-round (RHS hardiness H1a, minimum 15C).

Slow upright tree habit reaching roughly 1.5-2.5m over 10-20 years indoors; the milky latex sap can irritate skin, so wear gloves when pruning.

Cold limit: USDA 10-12 (indoor in most US homes) · RHS H1c (18-26°C)

Sources: rhs.org.uk, hgtv.com

What ficus audrey's hardiness rating actually means

Ficus Audrey 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 H1c means: Warm-temperate — can summer outdoors but must come in well before the first frost. On the US scale that maps to USDA 10-12 (indoor in most US homes) — 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 about 5 °C (and never frost). Ficus Audrey has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for ficus audrey as it gets too cold:

Below about about 5 °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 ficus audrey go outside or overwinter — and where?

It can holiday outdoors in summer once nights are reliably above 5 °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 ficus audrey can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1c figure above.

Ficus Audrey hardiness — frequently asked questions

Is ficus audrey cold hardy?

Ficus Audrey 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. Ficus Audrey can only live outside year-round in genuinely frost-free climates (roughly USDA 10-12 (indoor in most US homes)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature ficus audrey can survive?

Minimum survivable temperature is roughly about 5 °C (and never frost). Ficus Audrey has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

What hardiness zone is ficus audrey?

Ficus Audrey is rated USDA 10-12 (indoor in most US homes) and RHS H1c — Warm-temperate — can summer outdoors but must come in well before the first frost.

Can ficus audrey survive winter outside?

It can holiday outdoors in summer once nights are reliably above 5 °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 ficus audrey below its minimum temperature?

Below about about 5 °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.