Colossal Blue Hosta Care

For the average garden, water well when planting and provide an inch of water each week.

Remove spent flower stems to tidy up plants for rest of the season. After flowering.

The best hosta plant food is a slow release NPK 10-10-10 fertilizer. Those three numbers stand for the amount of Nitrogen, Phosphorus, and Potassium in the fertilizer. Slow release fertilizers feed the plant each time it rains or the plant is watered. Hostas grow in zones 3-8. It does not need much fertilizer; however, if your soil is not in good shape or the plant is not thriving you may need to feed the plant. Rich soil and a lot of water is just as important for hosta health as is fertilizer.

Although they're known for their shade-tolerance, most hosta varieties perform well when exposed to a bit of morning sun and afternoon shade. Too much sun exposure will result in burned leaves, starting from the edges inward. The leaves will look brown, dry, and papery. Too much sun exposure also causes colors to fade.

Hostas do best in a water-retentive, fertile soil. Very heavy clay and sandy soils should be improved by digging in plenty of well-rotted organic matter. Ideally the pH of the soil should be 6.5 but it's still worth growing hostas in acid or alkaline soils.

Prized for their color and texture, hostas can be grown in USDA zones 4-9. In these zones, the hosta growing season ends when temperatures dip below 50 F. (10 C.) at night.

Hostas grow horizontally, so it is recommended that you choose a container that has less than 3 inches of space between the roots and the side of the pot. This will allow space for the roots to grow as the leaves of the hosta spread out. A smaller pot will keep the hosta healthy and happy.

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