Harsh Paintbrush

Elmer's Indian Paintbrush requires well-draining, slightly alkaline soil and does best in light to full sun. The plant should be watered deeply once a week during the summer months to keep the soil moist. During the winter months, water should only be given when the soil begins to dry out. Over-watering Elmer's Indian Paintbrush can cause the roots to rot, so it is important to pay attention to soil moisture levels and adjust the watering schedule accordingly.

Elmer's Indian Paintbrush is native to coastal areas in California and thrives in sunny, dry locations. The species requires full sunlight for up to 12 hours each day, year-round. It is most active in the summer months, when it should receive approximately 6 hours of direct sunlight and 6 hours of indirect sunshine. During spring and autumn, the plant will benefit from at least 8 hours of direct sunlight and 4 hours of indirect sunlight. It is important to remember that too much direct sunlight during the hottest months can cause the tips of the plant to become scorched. In winter, the plant should receive at least 4 hours of direct sunlight and 8 hours of indirect sunlight.

Elmer's Indian Paintbrush should be pruned annually in late summer or early fall. To prune, gently snip off the dead and damaged stems, cutting the remaining healthy stems back to a height of 6-12 inches. This will allow the plant to develop a more compact growth habit. Do not prune more than 50% of the stems at any given time, however, as the plant will require as much foliage as possible to remain healthy. Deadheading may also be necessary; remove the spent flower heads to prevent self-sowing and maximize flowering in the next season.