Los Angeles farmer Tara Kolla shares her secrets to growing great blooms, using organic methods
Favorite varieties: Most are sold by color; blues and pastels are Kolla’s mainstay.
When to plant: Set out tubers in early spring in cold climates; fall in mild climates (or check nurseries in spring for blooming plants).
Growing tips: Plant tubers at least 8 inches apart to discourage powdery mildew from forming on the leaves.
Mark the location of the tubers with a plastic fork or wood stick when planting so you don’t accidentally dig them up later while weeding.