When should I prune my Watsonia?
After blooming has finished, cut the flower stalks and leave the foliage to strengthen the bulb for next year. Water no more than 1" per week in hotter inland areas and less, or not at all in cooler summer areas along the coast. After weeks of eye catching late spring bloom, Watsonia will die back in early summer.
How do you care for a Watsonia plant?
Watsonia Plant Care
During watsonia's growing period make sure you provide adequate water. Keep the soil moist. Best left undisturbed and allowed to spread freely. Every few years it is important to divide clumps as their flowers begin to diminish each season.