Dwarf shrub of the Ericaceae family, this cultivar of Cassiope lycopodioides shares with the type species its origin in the mountains of East Asia — Japan, Korea, and the Kuril Islands — where the plant occupies alpine and subalpine heaths, moist rocks, and wind-swept slopes, between 1,500 and 2,500 meters of altitude. 'Jim Lever' is a selection named in honor of an alpine plant enthusiast, distributed in specialized rock garden horticulture circles.
Like the entire group, it develops a low and dense cushion, spreading across the ground, with stems entirely covered with small dark green scaly leaves, intricately arranged reminiscent of clubmoss fronds. The height does not exceed 5 to 8 cm, but the lateral spread can become progressively noticeable over the years.
The flowers are delicate creamy white to pure white bells, borne individually on slender reddish peduncles, with sepals tinged red to pinkish-brown forming a well-visible calyx. Flowering in cultivation occurs from April to May, draping the cushion with a multitude of small hanging lanterns.
Cultivation requires an acidic, humus-rich, and peaty soil, kept cool in all seasons, without limestone or summer drought, preferably in a cool or semi-shaded exposure.