California poppy

The California poppy should be watered deeply but infrequently. During its active growing season, water the plants once a week when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. During dry spells, water your California poppies with approximately 1 – 1.5 inches of water per week. During an extended illness spell, water the plants every 2 to 3 weeks. In the dormant winter season, allow the soil to dry out completely before watering your poppies again.

California poppies need approximately 6–8 hours of direct sunlight each day in order to thrive. During the summer they prefer full sun in the morning with some afternoon shade—ideally afternoon shade from a tall building or a tree or trellis. If they are planted in a very hot climate, they can tolerate full sun all day, but may need to be watered more often. During the winter, they need full sun to keep blooming.

Pruning of California poppies is best done in the spring after they have finished flowering. Pruning is necessary to promote a long bloom and a bushier habit. Prune off flower stalks and seed heads, then lightly trim back the foliage by about 1/3 of its current height. However, avoid trimming too much off as this will cause the plant to produce fewer flowers. Any hard pruning should be done in the early spring before the new growth has begun.