Photo of Dichelostemma congestum flower by Keeping it Green Nursery

Photo by Keeping it Green Nursery

Used with permission, all rights reserved

Show all photos

Dichelostemma congestum

Also Known As

  • Brodiaea congesta
  • Brodiaea congestum
  • Fork-Tongued Ookow
  • Harvest Lily

Plant type

perennial, bulb / corm / tuber

size

  • H: 18"-24"
  • W: 4"-6"

planting zones

  • 6a-10b

More Options

Dichelostemma congestum plant details

Dichelostemma congestum is a broadleaf deciduous perennial bulb / corm / tuber with green foliage. In spring and summer lavender and purple flowers emerge. Features grassy texture. Attracts bees, beneficial insects and butterflies making it an excellent addition to pollinator gardens. Grows well with sun - mostly shade and even moisture - low water. Prefers to be dry in summer, dry when dormant. Does well in average and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

CHARACTERISTICS OF Dichelostemma congestum

Plant type: perennial bulb / corm / tuber
Plant family: asparagaceae
Foliage: deciduous green
Mature size: 4 IN - 6 IN - wide, 18 IN - 24 IN - tall
Flowers: lavender and purple blooms in spring and summer
Uses: cottage garden, cutting garden, easy-to-grow, meadow garden

GROWING CONDITIONS for Dichelostemma congestum

USDA Zones: 6a - 10b
Sun exposure: sun - mostly shade
Watering frequency: even moisture - low
Resistant to: deer, verticillium wilt
Soil needs: average and well-drained

Nursery contributed plant descriptions

This western native may be found in open woods, meadows and grassy slopes from sea level up to 6,500 feet. Bees and butterflies are attracted to the bright purple inflorescences of 6-20, 1cm wide and long flowers. The edible bulbs were cooked in underground ovens and eaten, or processed and made into breads or cakes. The delightful, allium-like flowers are notable for their forked filaments and creamy-white ribs which offset the petals.
A colorful CA native bulb with lovely periwinkle blooms. First introduced in 1806, it’s native to meadows and open woods from central California extending northwards to Canada and less commonly in the Sierra foothills. Rising 18-24” above grass-like foliage, the silver dollar-sized, bright purple florets are densely packed with 6-15 individual flowers. Each petal is offset by a creamy-white rib and the yellow filaments are forked leading to the common name of “Fork-Tongued Ookow”.Flowering begins in April and continues until June,with the allium-like flower heads peacefully swaying in the breeze. Mixes well with native grasses such Carex pansa or other bulbs such as colorful Dutch Irises or later blooming Daffodils. Bees and butterflies find the flowers delightful. Plant in fertile, well-drained soil in full sun. After flowering, let foliage wither naturally. This bulb will naturalize in your garden and does not require Summer dry conditions so it can be left undisturbed.
Blooms: spring-summer, purple, tight clusters/ deciduous grass like foliage/ syn. Dichelostemma / Triteleia Zone 7-9. 24", PNW, part shade-sun, moist-dry, well drained

Gardening facts about Dichelostemma congestum plant

How to Grow Dichelostemma congestum

  • Sun Exposure

    • sun - mostly shade
  • Water Needs

    • even moisture - low
  • Water Needs

    • dry when dormant
  • Water Needs

    • dry in summer
  • Soil Needs

    • average
    • well-drained
  • Special Situation

    • verticillium wilt resistant

Features

  • Foliage Color

    • green
  • Flower Color

    • lavender
    • purple
  • Wildlife

    • beneficial insects
    • bees
    • butterflies
    • deer resistant
  • Flower Season

    • summer
    • spring
  • Foliage Season

    • deciduous
  • Texture

    • grassy
Mailing List
Sign Up for updates on new plant arrivals and deals

© 2010—2024 Plant Lust, LLC All Rights Reserved