Red Head tolerates full sun to shade, windy conditions, heat waves and cold to -2deg.

It tolerates full sun only if grown with consistently moist soils.

It prefers part shade, but will tolerate sun in many locations.

It can tolerate sun or dappled shade and some degree of pollution.

It can tolerate sun, but it gets stunted in too much light.

Given its Himalayan heritage, it tolerates heat, cold, sun and drought.

It requires moisture and does not tolerate much sun or dry conditions.

This plant can tolerate high heat and full sun to light shade exposure.

They tend to grow in areas that are sometimes covered in shade (cannot tolerate too much sun).

It grows best in part shade but tolerates full sun.