better in the cooler regions of the north, tends to melt out in hot, humid summers
Flowers
shimmering 1/4", four petaled,produced in compact clusters called corymbose panicles, bright yellow to lemon yellow, late April through mid to late May
Leaves
gray green, rambling
Maintenance
benefits from cutting back after bloom, creates a compact plant, I have found that if it isn't cut back will become scraggly
Propagation
cuttings, difficult to divide, seeds may not come true to cultivar
Native Site
Species plant native to Mediterranean Europe to Turkey.
Notes & Reference
#30-Gardening with Perennials Month by Month (Joseph Hudak), #40-Herbaceous Ornamental Plants (Steven Stills)