Variety traits

Winter hardiness of Erica gracilis

Erica gracilis J. C. Wendl.

Erica gracilis has extremely low winter hardiness and is unable to overwinter in open ground in temperate climates. The plant withstands only mild positive temperatures, corresponding to USDA zone 10.

In the reference 5 varieties crop Slender heath, where this is mentioned in the description.

Erica gracilis is characterized by a lack of winter hardiness, which precludes its cultivation as a perennial crop in open ground. According to international standards, such as the Royal Horticultural Society classification, the species has a low H2 rating, limiting its survival to a temperature range of 1 to 5°C. In the USDA system, the plant is assigned to zone 10 with a minimum endurance threshold of approximately -1°C.

The inability to tolerate sub-zero temperatures is a determining factor in its agrotechnics. The crop is cultivated as an annual potted or indoor plant, not intended for overwintering. Attempts to preserve the Erica as a perennial require the maintenance of strictly specific cool conditions indoors; therefore, the plant is most often discarded after the flowering period concludes.

General information about the subject — on the page Winter hardiness.

Sources8

Varieties of Slender heath mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.