hosta

Hosta 'Blue Mammoth' should be watered once or twice a week, providing enough water to keep the soil moist but not saturated. Water deeply, so that the water reaches the root zone. Water close to the base of the hosta, avoiding splashing water onto the leaves, as that could damage them. Allow the soil to dry out slightly between waterings. In periods of hot, dry weather, soak the soil thoroughly once or twice a week to ensure the plant is receiving enough water.

Hosta 'Blue Mammoth' plants need to be placed in an area with light, indirect sunlight throughout the day in order for them to thrive. Generally, 4 to 5 hours of sunlight is optimal for this species. Morning sun is recommended, as afternoon sun can cause scorching of the foliage. Conversely, without adequate exposure to the sun, hostas may become weak and stretched out. This species of hosta prefers partial shade and is more tolerant of cold temperatures, making it easier to nurture in less than ideal conditions.

Hosta 'Blue Mammoth' should be pruned in late summer or early fall. It is best to cut back the plant during the dormant season when new growth has slowed. The plant should be cut back just above a healthy set of leaves about 1 to 2 inches from the ground. If the plant is particularly overgrown, it can be cut back further, but only if necessary. Avoid cutting back the foliage until the leaves have begun to turn yellow, as the plant will not benefit from being cut back earlier. After pruning, it's essential to fertilize the plant so it has the proper nutrients to encourage new growth.