Great Coneflower
Scientific Name: Rudbeckia maxima Nutt.
Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Asteridae / Asterales / Asteraceae / Compositae / Rudbeckia L./ Rudbeckia maxima Nutt.
| General Information | |
|---|---|
| Usda Symbol | RUMA3 |
| Group | Dicot |
| Life Cycle | Perennial |
| Growth Habits | Forb/herb |
| Native Locations | RUMA3 |
Plant Guide
Use soil moisture sensors to measure the soil moisture of Great Coneflower.
Plant Traits
Growth Requirements
| Temperature, Minimum (°F) | -23 |
|---|---|
| Adapted to Coarse Textured Soils | Yes |
| Adapted to Fine Textured Soils | Yes |
| Adapted to Medium Textured Soils | Yes |
| Anaerobic Tolerance | High |
| CaCO3 Tolerance | Low |
| Cold Stratification Required | No |
| Drought Tolerance | None |
| Fertility Requirement | Medium |
| Fire Tolerance | None |
| Frost Free Days, Minimum | 180 |
| Hedge Tolerance | None |
| Moisture Use | High |
| pH, Maximum | 7.0 |
| pH, Minimum | 4.0 |
| Planting Density per Acre, Maxim | 10912 |
| Planting Density per Acre, Minim | 2728 |
| Precipitation, Maximum | 60 |
| Precipitation, Minimum | 40 |
| Root Depth, Minimum (inches) | 12 |
| Salinity Tolerance | None |
| Shade Tolerance | Intolerant |
Morphology/Physiology
| After Harvest Regrowth Rate | Moderate |
|---|---|
| Toxicity | None |
| Resprout Ability | No |
| Shape and Orientation | Erect |
| Active Growth Period | Spring |
| Bloat | None |
| Coppice Potential | No |
| Fall Conspicuous | No |
| Fire Resistant | No |
| Flower Color | Yellow |
| Flower Conspicuous | Yes |
| Foliage Color | Gray-Green |
| Foliage Porosity Summer | Porous |
| Foliage Porosity Winter | Porous |
| Fruit/Seed Color | Black |
| Nitrogen Fixation | None |
| Low Growing Grass | No |
| Lifespan | Short |
| Leaf Retention | No |
| Known Allelopath | No |
| Height, Mature (feet) | 9.8 |
| Growth Rate | Rapid |
| Growth Form | Single Stem |
| Fruit/Seed Conspicuous | No |
| Foliage Texture | Coarse |
Reproduction
| Vegetative Spread Rate | None |
|---|---|
| Small Grain | No |
| Seedling Vigor | High |
| Seed Spread Rate | Moderate |
| Fruit/Seed Period End | Fall |
| Seed per Pound | 1000000 |
| 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 | No |
| Fruit/Seed Persistence | No |
| Fruit/Seed Period Begin | Summer |
| Fruit/Seed Abundance | Medium |
| Commercial Availability | No Known Source |
| Bloom Period | Summer |
| Propagated by Cuttings | No |
Suitability/Use
| Veneer Product | No |
|---|---|
| Pulpwood Product | No |
| Post Product | No |
| Palatable Human | No |
| Palatable Graze Animal | High |
| Palatable Browse Animal | High |
| Nursery Stock Product | No |
| Naval Store Product | No |
| Lumber Product | No |
| Fodder Product | No |
| Christmas Tree Product | No |
| Berry/Nut/Seed Product | No |
