Planting Instructions by Flower Name
- Hardy Zones: 3-9
- Spacing: 2-4"
- Height: 3-4"
- Ships As: package of 15 bulbs
Sieberi Tricolor Crocuses
Crocus sieberi 'Tricolor'
Crocuses are in the Iris family, Iridaceae, and are native to Europe, North Africa and temperate Asia. There are 80 species and numerous hybrids, ranging in colors of yellow, white, lavender and purple, sometimes multi-colored. The spring-blooming varieties are early blooming and showy, cup-shaped blooms often appear before the snow has melted. Sieberi crocus will produce lilac-blue flowers, with a white band and golden throat in early spring.
Plant the pointed end up in moist, well-drained soil, 3” deep and 2-4” apart. Crocuses are not fussy about soil, and will generally grow anywhere grass grows, but they do require well-draining conditions. Choose an area that receives full to part sun during the early spring season, and plant in groups of at least ten bulbs for maximum effect.
After blooming, let the foliage die back on its own, allowing the plants to create energy for next year’s blooms. If planted in a lawn, do not mow until the strappy leaves have died back. Fertilize annually either in very early spring or late fall. If conditions are favorable, crocus bulbs will naturalize over the years, multiplying and spreading. If they become too dense, they will not flower as readily. You may divide crowded bulbs either in spring, just after blooming, or in the fall. Dig up the bulbs and replant, following the planting instructions above.