Autumn is the time to plant bulbs that will bloom in Spring and Summer. Spring Some favorites include daffodil, crocus, freesia, ixia, and sparaxis. Summer flowers include and gladioli and Amaryllis belladonna. Choose large, firm bulbs that show no signs of decay. Plant them in well-drained and pre-moistened soil, preferably amended with compost, in a sunny or partly sunny location, in the ground or in containers. Place them at a depth of about two times as deep as the bulb is wide, with the growing tip pointing up and the root scar facing down. Lightly irrigate them until the winter rains kick in and provide natural watering.
More Information: Planting Bulbs (Alameda County Master Gardeners)