Cold hardiness & minimum temperature

Is Dischidia imbricata (Dischidia imbricata)cold hardy? Hardiness zone & min temp

Also called Ant Plant Dischidia, Shingle Dischidia.

More about dischidia imbricata

About Dischidia imbricata

Dischidia imbricata · also called Ant Plant Dischidia, Shingle Dischidia · houseplant

Dischidia imbricata is a fascinating epiphytic ant-plant that presses round, cupped leaves flat against bark like overlapping shingles, hiding its roots in the humid pockets beneath. In the wild ants shelter under these leaves and feed the plant. Grown indoors it is best mounted or in an airy basket, wanting warmth, high humidity, bright indirect light and a fast-draining epiphytic medium.

Cold limit: USDA 11-12 (indoor in most US homes) · RHS H1b (18-29°C)

Watch for — Slow or stalled growth: Cool temperatures or low light slow this already slow grower to a halt. Keep it warm and brightly but indirectly lit.

What dischidia imbricata's hardiness rating actually means

Dischidia imbricata 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 H1b means: Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season. On the US scale that maps to USDA 11-12 (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 10 °C (sustained cold below this is damaging). Dischidia imbricata has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for dischidia imbricata as it gets too cold:

Below about about 10 °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 dischidia imbricata go outside or overwinter — and where?

It can holiday outdoors in summer once nights are reliably above 10 °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 dischidia imbricata can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1b figure above.

Dischidia imbricata hardiness — frequently asked questions

Is dischidia imbricata cold hardy?

Dischidia imbricata 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. Dischidia imbricata can only live outside year-round in genuinely frost-free climates (roughly USDA 11-12 (indoor in most US homes)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature dischidia imbricata can survive?

What hardiness zone is dischidia imbricata?

Dischidia imbricata is rated USDA 11-12 (indoor in most US homes) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can dischidia imbricata survive winter outside?

It can holiday outdoors in summer once nights are reliably above 10 °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 dischidia imbricata below its minimum temperature?

Below about about 10 °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.