Copyright © 1997-2010 Demand Media. All rights reserved.
The Mammoth Wildrye (Racemosus) is generally described as a perennial graminoid. This is not native to the U.S. (United States) and has its most active growth period in the spring and summer . The greatest bloom is usually observed in the late spring, with fruit and seed production starting in the summer and continuing until summer. Leaves are not retained year to year. The Mammoth Wildrye (Racemosus) has a moderate life span relative to most other plant species and a rapid growth rate. At maturity, the typical Mammoth Wildrye (Racemosus) will reach up to 3 feet high, with a maximum height at 20 years of 0 inches.
The Mammoth Wildrye (Racemosus) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by seed, sprigs. It has a slow ability to spread through seed production and the seedlings have high 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 | Graminoid |
| Growth Period | Spring, Summer |
| Growth Duration | Perennial |
| Lifespan | Moderate |
| Plant Nativity | Introduced to U.S. |
| Commercial Availability | Routinely Available |
| Bloom Period | Late Spring |
|---|---|
| Displays Fall Colors | No |
| Shape/Growth Form | Rhizomatous |
| Drought Tolerance | High |
| Shade Tolerance | Intolerant |
| Height When Mature | 3 |
| Vegetative Spread | Rapid |
| Flower Color | Yellow |
| Flower Conspicuousness | No |
| Fruit/Seed Abundance | High |
| Fruit/Seed Seasonality | Summer Summer |
| Seed Spread Rate | Slow |
| Propagations (Ways to Grow) | Seed, Sprigs |
|---|---|
| Moisture Requirements | Medium |
| Cold Stratification Required | No |
| Minimum Temperature | -33 |
| Soil Depth for Roots | 16 |
| Toxic to Nearby Plants | No |
| Toxic to Livestock | No |
| After-Harvest Regrowth Rate | Rapid |
| After-Harvest Resprout Ability | No |
| Responds to Coppicing | No |
| pH Range | 6–9 pH |
|---|---|
| Precipitation Range | 10–10 inches/yr |
| Planting Density | 3000–11000 indiv./acre |
| Soil Textures | Coarse, Medium |
| Soil Depth for Roots | 16 |
| Minimum Frost-Free Days | 120 day(s) |
| Salinity Tolerance | Low |
| CaCO3 Tolerance | High |
| Leaf Retention | No |
|---|---|
| Palatability | Low |
| 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
Fuchsia Spiderwort In Bloom
Zone 5 | Blooming
White Gooseneck Loosestrife In…
Zone 5 | Blooming
Planting Seedlings
Zone 6 | Planting
VEGETABLES
Zone 8 | Planting
Set Up Straw Bale Garden With…
Zone 7 | Planting