Description Large-flowered collomia (Collomia grandiflora), also known as large-flowered mountain trumpet, has upright, reddish stems topped in summer (mostly early) with clusters of peach-colored, trumpet-shaped flowers accented with blue-tipped anthers. I find the height can vary greatly, depending on the growing conditions: in rich, moist soil, it can reach to 3 feet or more; in dry conditions, it may reach only a foot or so. You may want to try it in a corner of your vegetable garden or an out-of-the-way bed the first year to see how it performs in your particular conditions; then let it self-sow and move the young seedlings or cut the somewhat sticky seedheads when they turn brown and shake them over the area where you want to plants to grow next year. However you handle it, large-flowered collomia is an interesting and unusual choice for early summer color. Western U.S. native. Full sun. Annual. Collected in mid- to late July 2025. At least 20 seeds. Unknown ecotype. Shipping to U.S. addresses only. Please read the germination information as well before ordering.
