Collection: H1 Very Tender Plants

This collection brings together plants in the RHS H1 group: the least hardy plants in UK terms, generally grown indoors or under glass all year, or moved outside only in reliably warm summer weather. The H1 category is now split by RHS into H1a, H1b and H1c, covering tropical, subtropical and warm-temperate plants that need winter temperatures above 15°C, 10–15°C, or 5–10°C respectively.