Spring Valley, CA (Zone 10a) | March 2011 | positive
We have one of these growing in full sun and another in mostly (bright) shade. The former requires (gray water) irrigation once a week, w...Read Morehereas the latter can go 2 or three weeks, even in the heat of summer. Both are at least 24" tall and about 40" diameter in clay-loam that is thickly mulched with compost.
Needs to be cut back by 1/3 or more as most of the flowers begin to fade. We feed ours at this time with dilute fish emulsion. After several years the old plants begin to look tired but are easily and quickly replaced with new ones grown from cuttings.
We have one of these growing in full sun and another in mostly (bright) shade. The former requires (gray water) irrigation once a week, w...Read More