Tolerates many soils including clay as long as well drained. Hates summer water and fertilizer. Native to hillsides of southern california and northern Baja.
These estimates for how long Matilija poppy takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Coulter's matilija poppy, Californian tree poppy
Romneya coulteri Harv.