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Things to know
Sunlight requirements: Full sun to partial shade
Characteristics: Clusters of soft, trumpet-shaped flowers in warm shades of salmon, coral, and pink.
Bloom time: Spring to early summer
Height: 8-24 inches tall
Soil conditions: Prefers dry to regular soil conditions
When to sow: Fall to early spring
Planting instructions: Direct sow seeds into loose weed-free, well-draining soil. Seeds can be lightly raked into the soil.
Stratification requirements: 4 weeks
Life cycle: Annual
Large-flowered collomia (Collomia grandiflora) is a quietly spectacular native wildflower of western North America, bringing both beauty and ecological value to the landscapes it inhabits. Known for its soft, trumpet-shaped blooms in shades of coral, salmon, and rose, this annual wildflower adds a warm glow to meadows, open woodlands, and rocky slopes. Native to the Pacific Northwest and parts of the western interior, large-flowered collomia thrives in open, sunny sites from lowland valleys to montane environments. It is especially common in natural grasslands, forest edges, and dry, well-drained habitats where native plants have adapted to seasonal extremes.
Ecologically, Collomia grandiflora plays an important supporting role. Its tubular flowers provide nectar and pollen for a variety of native bees, including specialized pollinators that rely on native flora for survival. Blooming in late spring to early summer, it helps bridge seasonal gaps in floral resources, supporting pollinator populations when other flowers may be scarce. The plant also contributes to plant diversity, which in turn strengthens habitat resilience for insects and birds. Fast-growing and self-seeding under favorable conditions, large-flowered collomia is well-suited to restoration projects, native meadows, and naturalized gardens. Its brief but vibrant life cycle makes it a powerful reminder of the beauty and importance of native annuals in healthy ecosystems.
Wild Spaces Land Care is a Vancouver-based company focused on highlighting the importance of gardening with native species. We want to bring more attention to our native flora and make the plants more accessible to local gardeners. We source our seeds from suppliers around the PNW and ensure high quality seeds and industry standards for germination rates.