How to Plant Fall Flower Bulbs

Overview

If you thought bulbs could only bloom in the spring, you are in for a pleasant surprise. Consider the color and garden interest that can be achieved with fall blooming bulbs, when planted during the cool days of spring. Canna, belladonna, rain and calla lilies and dahlias are all fall flowering bloomers that require a little preparation with a very satisfying, late growing season result.

Step 1

Prepare the bedding site by working the soil up to 10 inches deep. Bulbs need room to send out roots and should not be packed too tightly. Till in organic mulch to provide nutrients throughout the growing season.

Step 2

Work bonemeal into the soil at the 10-inch level in order to provide phosphorus, necessary for root production.

Step 3

Plant canna rhizomes 1 to 2 inches deep, lily bulbs 4 to 6 inches deep, and dahlia tubers just under the soil with the eye of the stem at surface level. Spacing depends on the size of the mature plant, but leave at least 12 inches between smaller bulbs and 24 to 36 inches between larger ones.

Step 4

Fertilize once the bulbs send up shoots in early fall or late summer. Apply a bulb fertilizer gradually in multiple applications, according to manufacturer's directions

Step 5

Water to keep the ground moist during growth and flowering. Decrease water as the weather becomes cooler to avoid promoting bulb rot.