Aaron's Beard

Scientific Name: Hypericum calycinum L.

Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Dilleniidae / Theales / Clusiaceae / Guttiferae / Hypericum L./ Hypericum calycinum L.

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General Information
Usda SymbolHYCA10
Life CyclePerennial
Growth HabitsShrubSubshrub,
Native LocationsHYCA10

Plant Guide

Use soil moisture sensors to measure the soil moisture of Aaron's Beard.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)-43
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsYes
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceNone
CaCO3 ToleranceLow
Cold Stratification RequiredNo
Drought ToleranceMedium
Fertility RequirementMedium
Fire ToleranceHigh
Frost Free Days, Minimum130
Hedge ToleranceNone
Moisture UseMedium
pH, Maximum7.5
pH, Minimum5.5
Planting Density per Acre, Maxim19000
Planting Density per Acre, Minim2700
Precipitation, Maximum60
Precipitation, Minimum30
Root Depth, Minimum (inches)12
Salinity ToleranceLow
Shade ToleranceTolerant


After Harvest Regrowth RateSlow
Resprout AbilityNo
Shape and OrientationErect
Active Growth PeriodSpring and Summer
C:N RatioMedium
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorYellow
Flower ConspicuousYes
Foliage ColorGreen
Foliage Porosity SummerModerate
Foliage TextureMedium
Nitrogen FixationNone
Low Growing GrassNo
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)0.8
Growth RateRapid
Growth FormRhizomatous
Fruit/Seed ConspicuousNo
Foliage Porosity WinterPorous


Vegetative Spread RateModerate
Small GrainNo
Fruit/Seed PersistenceNo
Seed Spread RateNone
Propagated by TubersNo
Propagated by SprigsYes
Propagated by SodNo
Propagated by SeedNo
Propagated by CormNo
Propagated by ContainerYes
Propagated by BulbNo
Propagated by Bare RootNo
Commercial AvailabilityRoutinely Available
Bloom PeriodEarly Summer
Propagated by CuttingsNo


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