Answer: Some hostas can tolerate sun; others are strictly shade lovers. Generally, dark green and blue Hostas will do better in more shade because they have more chlorophyll in their leaves.
Fragrant hosta varieties can tolerate an extensive amount of afternoon sun. Varieties in my gardens which are fragrant are 'Royal Standard', 'Honeybells', 'So Sweet', 'Sugar & Cream', plantaginea, plantaginea 'Aphrodite', 'Invincible'. Full shade will impair blooming period and plant size.
Hostas that have yellow centers, or are all yellow must have 1-2 hours of direct sun. If they do not have enough sun, the yellow portion will stay green or look like it is attempting to turn yellow.
As you observe hostas in other gardens and homes, you will see many varieties tolerating all day sun. Varieties in my gardens which can handle all day sun are 'August Moon', undulata Albo-marginata', 'Sun Power', 'Invincible', 'Royal Standard', 'Honeybells', 'Peal Lake', 'Francee'.
Finally, variegated varieties have less chlorophyll and do better with more sunshine, preferably morning sun, but not full sun.
Hope this information helps you choose just the right hostas for your garden!
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