From E. H. Moss (1959), rev. J. G. Packer (1983), Flora of Alberta:
"Caespitose herb, densely long-silky and villose...Read More throughout; leaves 7-26 cm long; leaflets numerous, mostly in whorls of 3-4 in 7-15 fascicles, a few sometimes opposite or scattered, lanceolate to oblong-elliptic; scapes erect, 10-36 cm long; racemes 12-35 flowered, dense, spike-like, 3-8 cm long; calyx densely villose; corolla 10-15 mm long, blue to reddish purple, drying violet; keel 10-11.5mm long; pods ovoid, 10-17mm long, densely villose, short-beaked, thinly chartaceous"; "grassy slopes, open woods, gravelly banks. Alas, Yuk, Mack, to Lk Superior s to seBC, NM, ND, nMinn".
Yes, it is an excellent, non-problematic rock garden or xeriscape plant!
Of all the locoweed species, this one is perhaps the most lovely. The foliage is silvery-white and the violet flowers contrast beautiful...Read Morely. It is more upright than many Oxytropis and one of the tallest. I've never grown it in cultivation, but it should make a great plant for a xeric rock garden.
From E. H. Moss (1959), rev. J. G. Packer (1983), Flora of Alberta:
"Caespitose herb, densely long-silky and villose...Read More
Of all the locoweed species, this one is perhaps the most lovely. The foliage is silvery-white and the violet flowers contrast beautiful...Read More