Cold hardiness & minimum temperature

Is Cajuru Vine (Fridericia chica)cold hardy? Hardiness zone & min temp

Also called Cajuru Vine, Chica, Carayurú, Puca Panga.

More about cajuru vine

About Cajuru Vine

Fridericia chica · also called Cajuru Vine, Chica · tropical

A vigorous tropical Amazonian liana in the Bignoniaceae family, capable of reaching 35 m into forest canopies. Bears clusters of pink to purplish-lavender trumpet flowers on woody, tendril-climbing stems. Valued in traditional medicine across South America and as a source of red-orange textile dye. Requires warm, humid conditions and frost-free cultivation.

Cold limit: USDA 10-12 · RHS H1b (18–35°C; minimum 10°C)

Watch for — Cold damage and dieback: Temperatures below 10°C cause growth to slow markedly; frost kills stems and may destroy the plant entirely. Always bring container specimens indoors before temperatures drop below 12°C. Outdoor planting is only appropriate in zones 10–12.

What cajuru vine's hardiness rating actually means

Cajuru Vine 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 10-12 — 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 about 10 °C (sustained cold below this is damaging). Cajuru Vine has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for cajuru vine 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 cajuru vine 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 cajuru vine can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1b figure above.

Cajuru Vine hardiness — frequently asked questions

Is cajuru vine cold hardy?

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

What is the minimum temperature cajuru vine can survive?

Minimum survivable temperature is roughly about 10 °C (sustained cold below this is damaging). Cajuru Vine has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

What hardiness zone is cajuru vine?

Cajuru Vine is rated USDA 10-12 and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can cajuru vine 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 cajuru vine 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.