Rock Garden Plants
Polemonium  confertum A.Gray   
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FamilyPOLEMONIACEAE
Genus species var.Polemonium  confertum A.Gray 
SynonymsPolemonium grayanum Rydb.
Territory Northwestern U.S.A.Colorado
rocks
Altitude3000-4500m
Description leaflets verticillate, 30-40, orbiculate to oblong, viscid, 3-10mm long, inflorescence capitulate or spicate, calyx campanulate, densely glandular, corolla infundibuliform, 2cm
Size10-20cm
Colorblue, violet
Bloomsummer
Ca
Typetuft
Cultivationrock crevices with favourable water regime, eastern slopes
alpine house, poor, drained soil, shading in summer
Propagationseed in spring, barely covered, germ. 1-3 months, 18-21°C
division in spring; cuttings in spring and late summer
Bibliography
USDA Plants Database plants.usda.gov
Version 8.0
(c) 1990-2016 RNDr. Pavel Slabý