Begonia grandis Archives - Local Gardener

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Asked: July 7, 2023

Are there any hardy begonias?

Are there any hardy begonias?

Begonia grandis is generally considered hardy in USDA hardiness zones 6 to 9. The lowest survivable temperatures for this plant can vary depending on the specific conditions and the duration of cold temperatures. As a general guideline, Begonia grandis can ...Read more

RHS Hardiness Ratings	USDA Plant Hardiness Zones	Approximate Temperature Range (°C)
H1a H1b H1c	13 12 11	>15°C 10 to 15°C 5 to 10°C
H2	10b	1 to 5°C
H3	9b to 10a	-5 to 1°C
H4	8b to 9a	-10 to -5°C
H5	7b to 8a	-15 to -10°C
H6	6b and 7a	-20 to -15°C
H7	6a	Below -20°C