How to Sow
Established hosta plants tolerate any conditions except full sun with 90°F temperatures, but they will grow best in organically rich soil with afternoon shade and protection from strong winds. Dig organic matter such as compost into the soil at planting time to encourage deep, wide-spreading roots.
How to Grow
Hostas are tough, low-maintenance plants. Keep them mulched with compost or chopped leaves to control weeds and help retain soil moisture. You can also feed hosta plants each spring with a top-dressing of compost. Watering enough to keep the soil evenly moist promotes the best growth, although plants are remarkably drought-resistant. Cut flower stalks back to below the foliage before they set seed unless you want plants to self-sow.
Companion Plants
Hostas combine nicely with nearly any shade plants. Consider joining them with ferns, bleeding hearts, hellebores, lungworts, and epimediums. Plant daffodils and other hardy spring bulbs around hosta clumps. As the hosta foliage emerges, it will hide the unattractive ripening bulb foliage. Hostas also make excellent ground covers and specimen plants. Since they thrive in moist soil, they can be planted along stream banks, bogs, and ponds.