How to Care for Crocus Bulbs

Crocuses are perennial bulbous flowers native to Europe, Africa and Asia. They usually grow to about 6 inches in height and thrive in hardiness zones 3 through 8. Crocus bulbs produce colorful flowers during late winter and early summer that can be pink, white, purple, orange or yellow in color. Some varieties are striped with contrasting colors and are considered more valuable for ornamental flower gardens. Crocus bulbs are easy to plant and maintain, and will return and bloom year after year under the proper conditions.

Things You'll Need

• Organic compost
• Garden tiller
• Mulch
• Fertilizer

Instructions

1. Plant crocus bulbs during late September in a location that receives full, direct sunlight throughout the day. Spread a 2-inch layer of organic compost over the planting site and use a garden tiller to incorporate it into the soil to increase fertility prior to planting.

2. Dig planting holes 5 inches deep and 1 inch wide. Place one crocus bulb in each hole with the pointed side up, and gently cover with soil. Water lightly to bring moisture into contact with the bulb and initiate growth. Plant each bulb about 2 inches apart.

3. Spread a 1-inch layer of mulch over the soil covering the crocus bulbs. Allow the mulch to sit loosely over the soil so the plant can easily break through once it begins to sprout. Replenish the layer of mulch as often as necessary throughout the year.

4. Water crocus bulbs once per week after planting until the seedlings emerge from the soil. Reduce the frequency of watering to once every 10 days during spring, summer and fall. Do not water crocus bulbs during winter while the plants are dormant.

5. Feed crocus bulbs once per year just after flowering has ended in late spring. Use a slow-release bulb fertilizer to provide plenty of nutrients throughout the year. Follow the instructions provided by the manufacturer for proper dosage.

Tips & Warnings

• Use a light mulch such as chopped leaves or grass clippings so the emerging crocus can easily break through.

• Mark the locations where crocus bulbs are planted so they are not accidentally disturbed during their dormant period.

References

• University of California Center for Landscape and Urban Horticulture: Crocus
• "Georgia Gardener's Guide;" Erica Glasener and Walter Reeves; 2004
• "New England Gardener's Guide;" Jacqueline Hériteau, Holly Hunter Stonehill; 2002