Botanical Name: Romneya coulteri
Common Name: Matilija poppy Type of Plant: dicot: shrub Character semi-deciduous Habit of Growth: Overall Shape clumping habit of many erect stems, forms a broadly rounded canopy – stems die back close to ground in winter in colder habitats – large, loose and invasive Height 3-6' (10') Spread 6-15' Growth Rate rapid Environment: Exposure outdoors full sun Soil tolerates most except poorly drained Hardiness hardy (zones 5-10, 12-24); best in warm locations Morphology: Leaves pinnate, alternate, ovate with irregular clefts, lobes pointed-leaves 3-6" long, blue/gray/green, mostly 3-5 lobed Flowers spectacularly large, 6-9" wide, 5-6 white petals and central cluster of yellow stamens – solitary, terminal axillary – May-July Fruit 1" long capsule Propagation: seed, root cuttings (winter-Dec.) Usage: large filler/background for flower display; slopes, erosion control; can send out long runners and be invasive if unchecked Landscape Care: Watering occasionally deep soak; needs virtually no summer watering after established Fertilizing none Pruning cut back old stems close to ground during winter Pests/Diseases relatively free; root rot where drainage is poor Special Conditions/Other best planted in fall/winter; spring plantings may rot Origin: Southern California/ Baja Family: Papaveraceae Notes: |
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