Camassia bulbs should be planted in the fall, from late September to early November. This timing allows the bulbs to root into the soil before winter arrives, setting them up for healthy spring growth and flowering.
Where to Plant
Choose a location that receives full sun or partial shade. Camassias thrive in moist but well-drained soil and are more tolerant of damp conditions than most spring bulbs. They are well-suited for planting near water features, meadows, or in borders where the soil remains evenly moist during the growing season.
Preparing the Soil
Loosen the soil to a depth of 20 to 25 cm and remove any rocks, weeds, or compacted areas. While camassias appreciate moisture, they still need drainage — especially in winter — so amend heavy soils with compost, well-rotted leaf mold, or coarse sand to improve structure.
Planting the Bulbs
Place each bulb with the pointed end facing upward. Plant to a depth of about 10 to 15 cm, which is roughly two to three times the height of the bulb. Space them about 15 cm apart. Camassias look best when planted in informal clusters or drifts rather than single lines, especially in naturalistic settings.
After Planting
Water the area thoroughly after planting to settle the soil around the bulbs. Keep the soil moist during the fall if there is little rainfall. Once winter sets in, you don’t need to water further unless conditions are unusually dry.
Spring Growth and Blooming
In spring, expect strap-like leaves to emerge first, followed by tall flower spikes in late spring to early summer. Camassias generally don’t require feeding, but if your soil is poor, a balanced organic fertilizer in early spring can boost performance.
After Blooming
Let the foliage die back naturally after flowering — this process allows the bulbs to absorb nutrients for the following year. Once the leaves have completely yellowed, they can be cut away. If the plants become overcrowded, lift and divide them in late summer or early autumn and replant promptly.
Extra Growing Tips
Camassias are excellent for planting in damp lawns, meadow gardens, and along pond edges. Their vertical form pairs beautifully with grasses and other late-spring bloomers. Once established, they’re low-maintenance and reliably perennial, returning year after year with very little care.
