crocus ( Crocus spp . ) , which include about 80 mintage , bloom in late winter , bounce and drop . Each case blooms for only a few weeks each class . So to keep your garden in flower , plant a smorgasbord of natural spring and fall crocuses as well as a few early bloomers to help oneself shake off the late - winter chill . Crocuses are hardy in U.S. Department of Agriculture industrial plant hardiness zone 3 through 9 , depending on the species , cultivar or sort .
Step 1
leaping crocus ( Crocus vernus ) is a common spring - blooming crocus mintage . Hardy in USDA zone 3 through 8 , it has white or purple bloom . If you require to add variety , embed its cultivar , which offer a slight variation and also also are audacious in USDA zones 3 through 8 . render " Pickwick , " a cultivar that has blossom with purple with sorry stripe , " Striped Beauty , " which has imperial flowers with white stripes , or " Jeanne d’Arc,“a white - flower cultivar with a splash of purple at the base of each heyday .
Step 2
Other Spring-Blooming Varieties
Numerous outflow - blooming crocus species flower in a range of colors , from chicken to white to purple . Add a splash of cheery semblance to the spring garden with yellow crocus ( Crocus flavus ) . That specie , audacious in USDA zones 4 through 8 , has bright orange - yellow flowers . Other give - blooming specie include the lilac- or purple - blossom pygmy crocus ( Crocus minimus ) , sturdy in USDA zone 3 through 8 , and Corsican crocus ( Crocus corsicus ) , which has lilac - colored bloom and is hardy in USDA zones 6 through 9 .
Late Winter-Blooming Species
The melodic line between late winter and other spring is different in every part , and a few crocuses bloom so early that they often appear during a late snowfall . The snowfall crocus ( Crocus tommasinianus ) is a purple - flowering species that starts blooming as early on as March in some orbit . For flowers even earlier , establish another crocus species that also has the rough-cut name C crocus ( Crocus chrysanthus ) . When its atomic number 79 - yellow flowers emerge , sometimes as early as February , you ’ll know fountain is nigh behind . These two early - bloom crocuses are hardy in USDA zones 3 through 8 .
A True Fall-Blooming Specimen
The Crocus sativus crocus ( Crocus sativus ) , which is perennial in USDA zones 6 through 8 , is a rightful crocus that blooms in dip . When its purple- to lilac - colored flowers blooming , they look fresh , almost springlike in the fall landscape painting . The flowers , which last up to two calendar week , have a bright - orange stigma — a three - biramous branchlike structure in the flower centre — that is harvested for the culinary delicacy saffron . Use forethought with homegrown orange yellow , however , because other crocus variety are extremely poisonous and easy disordered with the saffron crocus crocus .
Step 3
Common Fall-Blooming Relatives
Many bulb refer to as fall crocus are not dependable crocus bulb , though they reckon like . These fall - blooming bulb go to the genus Colchicum , and the most commonly grown one are hardy in USDA zone 3 through 9 , though some are not stout in all of those zones . They blossom following a hibernating summer period . One metal money commonly called autumn crocus also is known as defenseless ladies and meadow saffron ( Colchicum autumnale ) . It has purple blossom with white centers and is hardy in USDA zones 4 through 8 . Autumn crocus varieties are toxic to people , ducky and livestock .
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