Cascara Buckthorn
Scientific Name: Frangula purshiana (DC.) A. Gray
Synonyms: Rhamnus purshiana DC.
Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Rosidae / Rhamnales / Rhamnaceae / Frangula Mill./ Frangula purshiana (DC.) A. Gray
| General Information | |
|---|---|
| Usda Symbol | FRPU7 |
| Group | Dicot |
| Life Cycle | Perennial |
| Growth Habits | ShrubTree, |
| Native Locations | FRPU7 |
Plant Guide
Use soil moisture sensors to measure the soil moisture of Cascara Buckthorn.
Plant Traits
Growth Requirements
| Temperature, Minimum (°F) | -3 |
|---|---|
| Adapted to Coarse Textured Soils | Yes |
| Adapted to Fine Textured Soils | No |
| Adapted to Medium Textured Soils | Yes |
| Anaerobic Tolerance | None |
| CaCO3 Tolerance | Low |
| Cold Stratification Required | Yes |
| Drought Tolerance | Medium |
| Fertility Requirement | Low |
| Fire Tolerance | Medium |
| Frost Free Days, Minimum | 150 |
| Hedge Tolerance | Medium |
| Moisture Use | Medium |
| pH, Maximum | 7.9 |
| pH, Minimum | 5.9 |
| Planting Density per Acre, Maxim | 700 |
| Planting Density per Acre, Minim | 300 |
| Precipitation, Maximum | 45 |
| Precipitation, Minimum | 14 |
| Root Depth, Minimum (inches) | 24 |
| Salinity Tolerance | None |
| Shade Tolerance | Tolerant |
Morphology/Physiology
| Bloat | None |
|---|---|
| Toxicity | None |
| Resprout Ability | Yes |
| Shape and Orientation | Semi-Erect |
| Active Growth Period | Spring and Summer |
| C:N Ratio | High |
| Coppice Potential | Yes |
| Fall Conspicuous | Yes |
| Fire Resistant | No |
| Flower Color | White |
| Flower Conspicuous | No |
| Foliage Color | Dark Green |
| Foliage Porosity Summer | Dense |
| Foliage Porosity Winter | Moderate |
| Foliage Texture | Coarse |
| Fruit/Seed Conspicuous | Yes |
| Nitrogen Fixation | None |
| Low Growing Grass | No |
| Lifespan | Long |
| Leaf Retention | No |
| Known Allelopath | No |
| Height, Mature (feet) | 35.0 |
| Height at 20 Years, Maximum (fee | 20 |
| Growth Rate | Slow |
| Growth Form | Multiple Stem |
| Fruit/Seed Color | Black |
Reproduction
| Vegetative Spread Rate | None |
|---|---|
| Small Grain | No |
| Seedling Vigor | Medium |
| Fruit/Seed Period Begin | Spring |
| Seed Spread Rate | Slow |
| Seed per Pound | 12300 |
| Propagated by Tubers | No |
| Propagated by Sprigs | No |
| Propagated by Sod | No |
| Propagated by Seed | Yes |
| Propagated by Corm | No |
| Propagated by Container | Yes |
| Propagated by Bulb | No |
| Propagated by Bare Root | Yes |
| Fruit/Seed Persistence | Yes |
| Fruit/Seed Period End | Summer |
| Fruit/Seed Abundance | High |
| Commercial Availability | No Known Source |
| Bloom Period | Mid Spring |
| Propagated by Cuttings | Yes |
Suitability/Use
| Veneer Product | No |
|---|---|
| Pulpwood Product | No |
| Post Product | No |
| Palatable Human | No |
| Nursery Stock Product | Yes |
| Naval Store Product | No |
| Lumber Product | No |
| Fodder Product | No |
| Christmas Tree Product | No |
| Berry/Nut/Seed Product | No |
