Persian Shield Archives - Local Gardener

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Asked: August 13, 2023

Can Persian shield be grown outdoors in the UK?

Can Persian shield be grown outdoors in the UK?

Growing Persian Shield (Strobilanthes dyerianus) outdoors in the UK can be a bit challenging due to the country’s temperate climate, especially in more northern and cooler regions. Persian Shield is native to tropical regions and prefers warm and humid conditions. ...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