NARGS Plant of the Month

Helianthemum nummularium

Description and General Information:

Common rock-rose, Helianthemum nummularium, is native to rocky limestone areas throughout much of Europe.  Plants are evergreen with small elliptical leaves and trailing, somewhat woody stems.  It can reach 20-30 cm tall but spread up to a meter across.  Flowers are produced in loose clusters from late spring through early summer.  Each flower has five yellow petals, often orange towards their base.  The flowers are up to 2.5 cm in diameter.  There are many named cultivars in...