Great Coneflower

Scientific Name: Rudbeckia maxima Nutt.

Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Asteridae / Asterales / Asteraceae / Compositae / Rudbeckia L./ Rudbeckia maxima Nutt.

Great Coneflower
General Information
Usda SymbolRUMA3
GroupDicot
Life CyclePerennial
Growth HabitsForb/herb
Native LocationsRUMA3

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 SoilsYes
Adapted to Fine Textured SoilsYes
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceHigh
CaCO3 ToleranceLow
Cold Stratification RequiredNo
Drought ToleranceNone
Fertility RequirementMedium
Fire ToleranceNone
Frost Free Days, Minimum180
Hedge ToleranceNone
Moisture UseHigh
pH, Maximum7.0
pH, Minimum4.0
Planting Density per Acre, Maxim10912
Planting Density per Acre, Minim2728
Precipitation, Maximum60
Precipitation, Minimum40
Root Depth, Minimum (inches)12
Salinity ToleranceNone
Shade ToleranceIntolerant


Morphology/Physiology

After Harvest Regrowth RateModerate
ToxicityNone
Resprout AbilityNo
Shape and OrientationErect
Active Growth PeriodSpring
BloatNone
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorYellow
Flower ConspicuousYes
Foliage ColorGray-Green
Foliage Porosity SummerPorous
Foliage Porosity WinterPorous
Fruit/Seed ColorBlack
Nitrogen FixationNone
Low Growing GrassNo
LifespanShort
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)9.8
Growth RateRapid
Growth FormSingle Stem
Fruit/Seed ConspicuousNo
Foliage TextureCoarse


Reproduction

Vegetative Spread RateNone
Small GrainNo
Seedling VigorHigh
Seed Spread RateModerate
Fruit/Seed Period EndFall
Seed per Pound1000000
Propagated by TubersNo
Propagated by SprigsNo
Propagated by SodNo
Propagated by SeedYes
Propagated by CormNo
Propagated by ContainerYes
Propagated by BulbNo
Propagated by Bare RootNo
Fruit/Seed PersistenceNo
Fruit/Seed Period BeginSummer
Fruit/Seed AbundanceMedium
Commercial AvailabilityNo Known Source
Bloom PeriodSummer
Propagated by CuttingsNo


Suitability/Use

Veneer ProductNo
Pulpwood ProductNo
Post ProductNo
Palatable HumanNo
Palatable Graze AnimalHigh
Palatable Browse AnimalHigh
Nursery Stock ProductNo
Naval Store ProductNo
Lumber ProductNo
Fodder ProductNo
Christmas Tree ProductNo
Berry/Nut/Seed ProductNo

Great Coneflower

Great Coneflower

Great Coneflower

Great Coneflower

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