Siskiyou Alum Root.
Heuchera merriami, or Alumroot, grows up to 10,000 feet elevation but it is hardy to only -10 F. The leaves are small, with scalloped edges, and form a low clump near the ground, while the flowering stalks rise up about six inches, with open clusters of delicate, creamy flowers. Alumroot is an excellent specimen for a rock garden and grows well in filtered or afternoon shade with typical garden water at lower elevations. In a garden this plant stands out when several plants are grouped together and the flowers are massed and appear as one showy cluster. Heuchera merriamii is perfect in a small, rock garden growing with Penstemon davidsonii, Penstemon rydbergii, Penstemon heterodoxus, Arnica parryi, Aster ascendens, Campanula rotundifolia, Eriogonum umbellatum, Geranium californicum, and Heuchera hirsutissima.
Heuchera merriamii's foliage color is green and type is evergreen.
Heuchera merriamii's flower color is white.
Communities for Heuchera merriamii:Red Fir Forest and Sub-Alpine Forest.
||6.00 to 7.00
||7 to 10
||0.10 to 0.30
||0.20 to 0.30
||90.00 to 1090.00
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