Ideal conditions for most hostas is morning sun and high filtered afternoon shade. However, many hostas will grow fine in full sun if given adequate moisture to keep them from drying out. So water profusely and keep them heavily mulched.
Factors that affect sun-tolerance- genetic, amount of water, how far north and influence of latitude, filter shade/indirect sunlight vs. full sun, morning sun, afternoon shade, etc.
Generally, thick-leaved hostas and those with fragrant flowers tolerate sun conditions better than others. In areas where summers are very hot and dry, hostas should be planted in some shade, as the sun is just too intense. In these environments, hostas may go heat dormant for the hottest part of the year.
Below is a list of cultivars with the potential to tolerate full sun.
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In an effort to keep this list accurate and up-to-date, please email all corrections and additions to