Rock Spirea or Mountain Spray
Bush Rock Spirea or Mountain Spray
This high-altitude, flowering shut can grow to 6' X 6' and loves to hand of cliff faces with spectacular views. I have found myself leaning waaaaayyy out to collect seed. This plant grows easily above 9,000' and below and covers itself in beautiful cluster blooms each spring. Then comes the fuzzy puffy seed heads. This thing is sensational draping itself down the rocks.
Provide cold stratification for up to 18 weeks.