Romneya Coulteri Tree Poppy

Romneya coulteri | Tree Poppy Romneya coulteri, also called the Tree Poppy or Matilija Poppy, is one of California’s most iconic native plants, celebrated for its spectacular blooms. The massive white petals have a crepe-paper texture and surround a bold golden center, with each flower reaching up to 8 inches across. From late spring through summer, these blooms create a striking display above tall, silvery-green foliage. This vigorous perennial spreads quickly, making it a standout choice for large borders, dry slopes, or native landscapes. Growing Romneya coulteri (Tree Poppy) Light: Full sun with at least 6 hours of direct sunlight daily. Soil: Prefers sandy, well-drained soil but tolerates poor soils. Water: Minimal watering once established; thrives in drought conditions. Maintenance: Prune to the ground in late fall or winter to promote fresh spring growth; can spread aggressively in favorable conditions. Wildlife: Attracts pollinators such as bees and butterflies. Ha