Collomia grandiflora (Large Flowered Collomia)
Large Flowered Collomia, Grand Collomia, Large-flower Mountain-Trumpet, Collomia
Adding pastel color to the garden, Collomia grandiflora (Large Flowered Collomia) is a charming annual wildflower boasting ravishing clusters tightly packed with pale peach to white flowers from mid-spring to mid-summer. Each tubular flower, 1 in. wide (2.5 cm), features 5 curving petals and anthers tipped with blue pollen – for a lovely contrast. Bees collect the bright blue pollen from the blossoms. The flowers are borne on erect, hairy, or fuzzy stems clad with long, lance-shaped leaves. They give way to capsules that contain sticky seeds. This plant spreads by reseeding itself and keeps a presence in the garden. Great as a cut flower.
- Grows up to 18-24 in. tall and wide (45-60 cm).
- Performs best in full sun to part shade in dry to moist, well-drained soils. Prefers partial shade and dry soils.
- Stunning when massed in mixed borders, cottage gardens, woodland gardens, naturalized areas, or containers.
- No serious pest or disease issues.
- Propagate by seed sown in situ in spring or autumn.
- Native to western North America.
Requirements
| Hardiness |
6 - 9 |
|---|---|
| Climate Zones | 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Annuals |
| Plant Family | Polemoniaceae |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Spring (Mid, Late) Summer (Early, Mid) |
| Height |
1' - 2' (30cm - 60cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing |
18" - 24" (50cm - 60cm) |
| Maintenance | Low |
| Water Needs | Low, Average |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained, Well-Drained |
| Characteristics | Cut Flowers, Showy |
| Native Plants | Arizona, California, Colorado, Idaho, Montana, Nevada, Oregon, Pacific Northwest, Rocky Mountains, Southwest, United States, Utah, Washington, Wyoming |
| Attracts | Bees |
| Garden Uses | Beds And Borders, Patio And Containers |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
Tom Hilton, Willamette Biology (Flickr)
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Requirements
| Hardiness |
6 - 9 |
|---|---|
| Climate Zones | 1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Annuals |
| Plant Family | Polemoniaceae |
| Exposure | Full Sun, Partial Sun |
| Season of Interest |
Spring (Mid, Late) Summer (Early, Mid) |
| Height |
1' - 2' (30cm - 60cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing |
18" - 24" (50cm - 60cm) |
| Maintenance | Low |
| Water Needs | Low, Average |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained, Well-Drained |
| Characteristics | Cut Flowers, Showy |
| Native Plants | Arizona, California, Colorado, Idaho, Montana, Nevada, Oregon, Pacific Northwest, Rocky Mountains, Southwest, United States, Utah, Washington, Wyoming |
| Attracts | Bees |
| Garden Uses | Beds And Borders, Patio And Containers |
| Garden Styles | Informal and Cottage, Prairie and Meadow |
