Northern California Coastal & Inland Valleys
Fertilize Indoor Plants
Longer days are triggering your indoor plants into action. Apply fertilizer at half the recommended strength to provide the nutrients necessary for growth without shocking them. I use fish emulsion on my indoor plants, but you may not like the odor in your own home.
Groom Spring-Blooming Annuals
Remove faded flowers from spring-blooming annuals, such as pansies and calendulas, to prolong the bloom. Cultivate the soil around annuals so water and nutrients can reach the roots easily.
If your citrus plants aren't beginning to set buds, now is the time to apply a citrus-specific fertilizer. Citrus require a different type of nitrogen than most garden plants, and it's available only in citrus fertilizer. You can purchase it at nurseries, garden centers, or online.
Prepare Garden Soil
Before you plant your summer garden, make sure the soil is in tip-top condition by amending it with organic compost, manure, rotted leaves, or all of the above. If you use chicken manure, wait a few weeks before you plant. Use a rototiller or shovel to turn the amendments into the soil to a depth of 12 to 18 inches.
Plant Summer-Blooming Bulbs
Now is the time to select and plant summer-flowering bulbs, such as callas, cannas, dahlias, gladiolus, and lilies. The bulbs should be planted in a sunny, well-drained location for best results.