Information on soil moisture and pH are lacking. A study to be initiated in 1986 by the Bureau of Land Management and the Colorado Natural Areas Program will better describe the habitat and biology of the species. It has not been shown, however, that seeds are not set through agamospermy. Germination occurs in spring, and leafing in late spring to early summer. Anthesis and fruiting occurs from July to August.
Seed production is directly dependent on the number of plants maturing in any particular year.
Two years after a year with good precipitation, assuming the intervening year is not harsh enough to kill vegetative rosetts, the species should produce a good seed crop. Seeds apparently remain viable for at least two years, but exact seed longevity is not known. The species is limited to sandy outcrops of the Coalmont Formation where competing vegetation is minimal. Date 13 MAR 96 is fairly good if suitable habitat can be protected from the factors causing mortality. Phacelia formosula occurs on pure sands and sandy loams derived from the Coalmont Formation.