UK hardiness
Is Catharanthus roseus 'Cora Cascade Strawberry' hardy in the UK?
Catharanthus roseus 'Cora Cascade Strawberry'
More about catharanthus roseus 'cora cascade strawberry' in the UK
Catharanthus roseus 'Cora Cascade Strawberry' and the RHS hardiness rating
Catharanthus roseus 'Cora Cascade Strawberry' is rated RHS H1c — warm temperate, meaning it withstands winter minimums of about 5 to 10°C. In practice that means it fine outdoors through most UK summers but must come in before the first frost. The RHS rating describes an absolute minimum temperature, not an average: a single hard frost below its band is what does the damage, so the question is always "what is the coldest night my garden gets?", not "what is a typical winter here?".
This follows the RHS plant hardiness rating system (H1a–H7), the UK standard. For the US growing-zone view, see the catharanthus roseus 'cora cascade strawberry' USDA hardiness guide.
Does UK region change it?
Because catharanthus roseus 'cora cascade strawberry' is frost-tender, UK region matters less than the simple rule: it does not stay outdoors over winter anywhere in the UK. Treat any time outside as a summer holiday — bring it back indoors once nights drop toward 10°C, well before the first frost, and acclimatise it over a week each way so the leaves do not shock.
Overwintering catharanthus roseus 'cora cascade strawberry' in the UK
Overwintering catharanthus roseus 'cora cascade strawberry' in the UK means bringing it in: a bright, frost-free room or a heated glasshouse, watered sparingly while growth slows. Do not leave it against cold glass or near an unheated porch. Move it back out only after the last spring frost has passed for your area.
Catharanthus roseus 'Cora Cascade Strawberry' UK hardiness — frequently asked questions
Is catharanthus roseus 'cora cascade strawberry' hardy in the UK?
Catharanthus roseus 'Cora Cascade Strawberry' is rated RHS H1c (warm temperate, hardy to about 5 to 10°C). It is not winter-hardy anywhere in the UK and must be overwintered under cover.
Can catharanthus roseus 'cora cascade strawberry' stay outside over winter in the UK?
No. Catharanthus roseus 'Cora Cascade Strawberry' is frost-tender — a UK frost will kill it. Bring it indoors or into a frost-free greenhouse before the first autumn frost and return it outside only after the last spring frost.
What does RHS H1c mean?
RHS hardiness ratings run H1a (needs a heated glasshouse) to H7 (survives below -20°C). Catharanthus roseus 'Cora Cascade Strawberry''s rating, H1c, means warm temperate — it tolerates winter minimums of about 5 to 10°C. The rating is an absolute minimum, not an average.
How do I overwinter catharanthus roseus 'cora cascade strawberry' in the UK?
Overwintering catharanthus roseus 'cora cascade strawberry' in the UK means bringing it in: a bright, frost-free room or a heated glasshouse, watered sparingly while growth slows. Do not leave it against cold glass or near an unheated porch. Move it back out only after the last spring frost has passed for your area.
Does UK region change whether catharanthus roseus 'cora cascade strawberry' survives?
Because catharanthus roseus 'cora cascade strawberry' is frost-tender, UK region matters less than the simple rule: it does not stay outdoors over winter anywhere in the UK. Treat any time outside as a summer holiday — bring it back indoors once nights drop toward 10°C, well before the first frost, and acclimatise it over a week each way so the leaves do not shock.
More catharanthus roseus 'cora cascade strawberry' care
See the full catharanthus roseus 'cora cascade strawberry' care guide, its temperature & humidity needs, and the US (USDA) hardiness version of this page.