Robert Swanson

To plant Robert Swanson lilies, choose a location with well-draining soil and partial to full sun. Dig a hole that is three times the height of the bulb and place the bulb in the hole with the pointed end facing up. Cover the bulb with soil and water thoroughly. Space bulbs 6-8 inches apart.

Water regularly, keeping the soil moist but not waterlogged. Fertilize once a month with a balanced fertilizer during the growing season. Mulch around the bulbs to retain moisture and suppress weeds. In the fall, after the foliage dies back, cut it down to ground level.

Robert Swanson lilies prefer a partially shaded to fully shaded location (preferably with 6 - 8 hours of sunlight) with well-drained soil that is rich in organic matter. They thrive in moist soil but can tolerate periods of dryness.

Plant bulbs in the fall or early spring, about 6-8 inches deep and spaced 8-10 inches apart. Water regularly but do not allow the soil to become waterlogged. Apply a balanced fertilizer once or twice during the growing season. Deadhead spent blooms to encourage more flowers. In colder climates, cover bulbs with mulch for winter protection.

The growth rate of Robert Swanson lilies varies depending on the growing conditions, planting month, and climate. In general, lilies grow at a moderate pace, typically producing one to six stems per bulb each year. If you plant Robert Swanson in spring, you’ll have blooms in the summer, but they will grow bigger every year.

Most Robert Swanson lilies take two to three years to reach full maturity and bloom. The growing season is typically in the spring and summer, with growth slowing or stopping in the fall and winter. With proper care and growing conditions, lilies can grow quickly and produce beautiful blooms in a relatively short period of time.