Shrubby St. Johnswort

Scientific Name: Hypericum prolificum L.


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

Shrubby St. Johnswort
General Information
Usda SymbolHYPR
GroupDicot
Life CyclePerennial
Growth HabitsShrubSubshrub,
Native LocationsHYPR

Plant Guide

Use soil moisture sensors to measure the soil moisture of Shrubby St. Johnswort.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)-28
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsYes
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceMedium
CaCO3 ToleranceLow
Cold Stratification RequiredNo
Drought ToleranceLow
Fertility RequirementMedium
Fire ToleranceLow
Frost Free Days, Minimum100
Hedge ToleranceNone
Moisture UseHigh
pH, Maximum7.2
pH, Minimum4.6
Planting Density per Acre, Maxim7000
Planting Density per Acre, Minim4800
Precipitation, Maximum55
Precipitation, Minimum30
Root Depth, Minimum (inches)10
Salinity ToleranceNone
Shade ToleranceIntermediate


Morphology/Physiology

BloatNone
ToxicityNone
Resprout AbilityNo
Shape and OrientationErect
Active Growth PeriodSpring and Summer
C:N RatioHigh
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorYellow
Flower ConspicuousYes
Foliage ColorGreen
Foliage Porosity SummerModerate
Foliage Porosity WinterPorous
Fruit/Seed ColorBrown
Nitrogen FixationNone
Low Growing GrassNo
LifespanModerate
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)3.2
Growth RateModerate
Growth FormSingle Crown
Fruit/Seed ConspicuousNo
Foliage TextureMedium


Reproduction

Vegetative Spread RateNone
Small GrainNo
Seedling VigorMedium
Fruit/Seed Period BeginSummer
Seed Spread RateModerate
Propagated by TubersNo
Propagated by SprigsYes
Propagated by SodNo
Propagated by SeedNo
Propagated by CuttingsNo
Propagated by ContainerNo
Propagated by BulbNo
Propagated by Bare RootNo
Fruit/Seed PersistenceNo
Fruit/Seed Period EndSummer
Fruit/Seed AbundanceMedium
Commercial AvailabilityNo Known Source
Bloom PeriodLate Spring
Propagated by CormNo


Suitability/Use

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

Shrubby St. Johnswort

Shrubby St. Johnswort

Shrubby St. Johnswort

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