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A. Flowering Characteristics
Crocus flowers in early spring (February/March)
and plants are 4-6 inches tall.
B. General Characteristics
1. Origin of species: Asia Minor and Europe
2. Common names: Dutch Crocus, Species Crocuses
3. Geophyte organ: Tunicated Corm
4. Hardiness type: Hardy II -Injured at temperatures
below 14 degrees F (-10C) when planted.
5. Natural reproductive systems and growth and
development requirements: Reproduces by corm replacement
and requires a warm (63 to 68F) - cool (28 to
32F) - warm (50 to 60F) annual reproductive cycle.
6. Primary uses: Rock gardens, beds, ground covers,
lawns, and woodland gardens.
C. Cultural Information
1. Bulb sizes: Species are 5/up, C. vernus cultivars
are 8/up cm in circumference.
2. Planting density: 0-4 inches apart, 35-70 per
sq. ft.
3. Planting depth: 5 inches to base of corm.
4. Planting time: Fall
5. Perennialization habit: 1990 USDA Climatic
Zones 3 to 4 with mulch, 5 to 7 without mulch.
6. Light requirements: Full sunlight to PM only
or AM only sunlight.
7. Moisture: Tolerates drought, but keep moist
during growing season.
8. Animal susceptibility: Susceptible.
D. Companion Plants:
Chaenomeles japonica, Forsythia, Jasminum nudiflorum,
Vinca minor, Hammamelis.
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