Ideally, hostas should be planted in an area with bright light, but little or no direct sun during the middle of the day. Blue varieties will keep their color longer if grown in open shade, with no direct sun. Green varieties can take more light, morning or dappled sun. Gold varieties and those with fragrant flowers will often tolerate quite a bit more sun if adequate moisture is provided.
Hostas will tolerate all but the most extreme conditions, but will do best with rich, moisture retentive, well drained soil. That means soil rich in organic material such as humus or compost. Without adequate moisture, leaves may burn, especially when planted in a bit too much sun. Watering during the summer months is probably of more benefit than anything else you can do for the plants.
Hostas will usually benefit from fertilizer application, especially in the spring when they are actively growing. We suggest a granular release fertilizer, such as supplemented in the early spring and late summer by a liquid fertilizer formulated for acid-loving plants.
Hostas are extremely hardy and do not need winter protection. The other major hosta pest is the slug, which leaves holes in the leaves but does not usually do extreme damage.  Named hostas are propagated by division, which is best done in the spring. Unlike many perennials, they do not need to be divided periodically to thrive. In fact, unless you need more plants, we recommend that you do not divide them unless they are very old and are not sending up shoots from the center of the clump. Hostas need at least 4 or 5 years of undisturbed growth to mature, and the textures and character of the foliage gets better and
better as the plants age.