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The Tolmie's Onion (Tolmiei) is generally described as a perennial forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring . The Tolmie's Onion (Tolmiei) has green foliage and inconspicuous red flowers, with a smattering of conspicuous brown fruits or seeds. The greatest bloom is usually observed in the early spring, with fruit and seed production starting in the spring and continuing until summer. Leaves are not retained year to year. The Tolmie's Onion (Tolmiei) has a short life span relative to most other plant species and a rapid growth rate. At maturity, the typical Tolmie's Onion (Tolmiei) will reach up to 1 foot high, with a maximum height at 20 years of 0 inches.
The Tolmie's Onion (Tolmiei) is usually not commercially available except under contract. It can be propagated by bulbs, seed. It has a slow ability to spread through seed production and the seedlings have medium vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -33°F. has high tolerance to drought and restricted water conditions.
| Category | |
|---|---|
| Growth Rate | Rapid |
| General Type | Forb/herb |
| Growth Period | Spring |
| Growth Duration | Perennial |
| Lifespan | Short |
| Plant Nativity | Native to U.S. |
| Commercial Availability | Contracting Only |
| Bloom Period | Early Spring |
|---|---|
| Displays Fall Colors | No |
| Shape/Growth Form | Single Crown |
| Drought Tolerance | High |
| Shade Tolerance | Intolerant |
| Height When Mature | 1 |
| Vegetative Spread | Slow |
| Flower Color | Red |
| Flower Conspicuousness | Yes |
| Fruit/Seed Abundance | Low |
| Fruit/Seed Seasonality | Spring Summer |
| Seed Spread Rate | Slow |
| Propagations (Ways to Grow) | Bulbs, Seed |
|---|---|
| Moisture Requirements | Medium |
| Cold Stratification Required | No |
| Minimum Temperature | -33 |
| Soil Depth for Roots | 8 |
| Toxic to Nearby Plants | No |
| Toxic to Livestock | No |
| After-Harvest Regrowth Rate | Slow |
| After-Harvest Resprout Ability | No |
| Responds to Coppicing | No |
| pH Range | 6–8 pH |
|---|---|
| Precipitation Range | 8–8 inches/yr |
| Planting Density | 4800–11000 indiv./acre |
| Soil Textures | Coarse, Fine, Medium |
| Soil Depth for Roots | 8 |
| Minimum Frost-Free Days | 120 day(s) |
| Salinity Tolerance | Low |
| CaCO3 Tolerance | Medium |
| Leaf Retention | No |
|---|---|
| Palatability | High |
| Fire Resistant | No |
| Causes Livestock Bloating | None |
Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA
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