Also called the dwarf almond, pink flower almond (Prunus glandulosa) grows 4 to 5 feet tall and wide and reliably displays its pink blossoms every spring upon the wiry upright branches. Although one of the common names is pink flower almond, there are several white flowering varieties of Prunus glandulosa. Best grown in USDA Zones 4 to 8, plant it among other shrubs and perennials to mask its mundane leaves and unkempt habit when it finishes blooming. It needs plenty of sunshine and a well-draining soil.
Sometimes called the variety Sinensis, the variety Rosea Plena bears light to medium pink flowers in early and mid-spring that have extra rows of petals, making the flowers "double" in form. In North America, plant nurseries sell this selection frequently, sometimes never listed as a variety but merely as "flowering almond". Thus, it is the default plant offered even though it is a mutation selected by horticulturalists, displaying a more robust and ornate flowering than the wild species.
Few nurseries grow or sell the variety Lawrence, even though it bears attractive and worthwhile white flowers with blushes of pink. The flower comprises only five petals, making it a "single" flower form.
A mutation that produced white flowers rather than pink, variety Alba Plena (sometimes Alboplena) essentially looks like Rosea Plena in habit. Alba Plena's flowers also contain extra petals, a "double" flower form, that makes the shrub look especially fluffy and snow-covered when in full bloom.
Simple, five-petaled white blossoms appear on variety Alba. The flowering looks great in spring, but fails to fully fill the branches as fully as the double white flowers of Alba Plena.