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The Twinberry Honeysuckle (Involucrata) is generally described as a perennial shrub. This is native to the U.S. (United States) has its most active growth period in the spring . The Twinberry Honeysuckle (Involucrata) has green foliage and inconspicuous yellow flowers, with a smattering of conspicuous black fruits or seeds. The greatest bloom is usually observed in the summer, with fruit and seed production starting in the summer and continuing until summer. Leaves are not retained year to year. The Twinberry Honeysuckle (Involucrata) has a long life span relative to most other plant species and a moderate growth rate. At maturity, the typical Twinberry Honeysuckle (Involucrata) will reach up to 10 feet high, with a maximum height at 20 years of 10 feet.
The Twinberry Honeysuckle (Involucrata) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, container, cuttings, seed. 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 -43°F. has low tolerance to drought and restricted water conditions.
| Category | |
|---|---|
| Growth Rate | Moderate |
| General Type | Shrub |
| Growth Period | Spring |
| Growth Duration | Perennial |
| Lifespan | Long |
| Plant Nativity | Native to U.S. |
| Commercial Availability | Routinely Available |
| Bloom Period | Summer |
|---|---|
| Displays Fall Colors | No |
| Shape/Growth Form | Single Stem |
| Drought Tolerance | Low |
| Shade Tolerance | Tolerant |
| Height When Mature | 10 |
| Vegetative Spread | None |
| Flower Color | Yellow |
| Flower Conspicuousness | Yes |
| Fruit/Seed Abundance | Low |
| Fruit/Seed Seasonality | Summer Summer |
| Seed Spread Rate | Slow |
| Propagations (Ways to Grow) | Bare Root, Container, Cuttings, Seed |
|---|---|
| Moisture Requirements | High |
| Cold Stratification Required | Yes |
| Minimum Temperature | -43 |
| Soil Depth for Roots | 12 |
| Toxic to Nearby Plants | No |
| Toxic to Livestock | No |
| After-Harvest Resprout Ability | Yes |
| Responds to Coppicing | No |
| pH Range | 5.5–8 pH |
|---|---|
| Precipitation Range | 14–14 inches/yr |
| Planting Density | 2700–11000 indiv./acre |
| Soil Textures | Fine, Medium |
| Soil Depth for Roots | 12 |
| Minimum Frost-Free Days | 90 day(s) |
| Salinity Tolerance | None |
| CaCO3 Tolerance | High |
| 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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