The Best Time & Place to Plant Black Out Lily Bulbs

Autumn

• The best time to plant your "Black Out" lily bulbs is in the fall between September and October. Each bulb has a thick covering of scales that supplies nourishment to the internal flower bud. By planting this perennial in the autumn, you allow the bulb to form ample roots for good anchorage, nutrient absorption and moisture uptake. Once the lily begins its growth, the foliage and stems can spread past 12 inches wide with a 36 inch height. Strong roots extending from the bulb ensure that the lily does not topple over from its own weight.

Considering Spring

• If you cannot plan a fall planting, spring is a smart alternative to ensure a summer blossoming. Because your bulbs cannot form the necessary roots in such a short period, your lilies may need to be staked for the first year. Plant your bulbs 12 inches apart and at least 4 inches deep. This depth and spacing allows each bulb to have adequate natural resources for prolific foliage and flowering growth. Water your bulbs once you cover them with soil to ensure that the entire bulb is touching moist earth -- this stimulates root growth and nutrient absorption.

Sunlight

• The best place for "Black Out" lily bulbs is in a full-sunlight position. These spectacular blossoms cannot be developed without at least six hours of sunlight for optimum photosynthesis. Your spreading foliage harnesses the sunlight into energy for blossom development. If the lilies are heavily shaded, the stems and foliage grow leggy and produce smaller flowers. For warmer USDA zone 8, however, you may want to provide some dappled shade in the afternoon to prevent heat stress and excessive moisture loss.

Soil and Mulch

• Before planting your bulbs, choose a well-drained soil area -- till organic matter into the soil if it is particularly compacted. Lily bulbs easily rot in compacted areas or succumb to drought conditions in sandy soils. Mulch your lilies after they begin sprouting to conserve soil moisture and to maintain a mild ground temperature. Irrigate your bulbs consistently to provide a damp environment, but not soggy conditions. Combining full sunlight, proper watering and a nutrient-rich soil location ensures a healthy "Black Out" blossoming period.