Romneya coulteri

©2001

MATILIJA POPPY, TREE POPPY
Family: Papaveraceae

GROWING GUIDE

Geographic Origin: Southern California, northern Mexico.
Plant Group: Perennials.

Sunny-side up ©2001

Hardiness: Sunset zones: 4-12, 14-24. USDA zones: 7-8.
Mature size: Height: 3-8 feet (1-2.5m). Width: Indefinate.
Flowering period: July - Fall (with watering).
Flowering attributes: Fragrant cup-shaped flowers with white petals and yellow-orange stamens.
Leaf attributes: Pinnatifid, gray-green leaves.
Growth habit: Suckering perennial.
Light: Full sun.
Soil: Fertile, well-drained soil.
Feeding: Side dress with compost or manures. Add a complete organic fertilizer in spring to the surrounding soil.
Propagation Methods: Very difficult to propagate.
Pruning Methods: Prune nearly to the ground in late fall.

Rainy Side Notes

This grows quite well with little or no extra watering during the drought season. Additional watering will cause the plant to sucker and spread. Roots of Romneya resent transplanting so plant out in the garden with care. Wonderful flowers with a slight citrus scent.

Debra Teachout-Teashon
Photographed in author's garden.

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