Roundhead Rush

Scientific Name: Juncus validus Coville

Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Liliopsida / Commelinidae / Juncales / Juncaceae / Juncus L./ Juncus validus Coville

Roundhead Rush
General Information
Usda SymbolJUVA2
GroupMonocot
Life CyclePerennial
Growth HabitsGraminoid
Native LocationsJUVA2

Plant Guide

Use a soil moisture meter to monitor the soil moisture where Roundhead Rush is planted.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)-3
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsNo
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceHigh
CaCO3 ToleranceMedium
Cold Stratification RequiredNo
Drought ToleranceLow
Fertility RequirementLow
Fire ToleranceHigh
Frost Free Days, Minimum165
Hedge ToleranceNone
Moisture UseHigh
pH, Maximum6.8
pH, Minimum5.0
Planting Density per Acre, Maxim1700
Planting Density per Acre, Minim1100
Precipitation, Maximum55
Precipitation, Minimum32
Root Depth, Minimum (inches)10
Salinity ToleranceNone
Shade ToleranceIntermediate


Morphology/Physiology

After Harvest Regrowth RateSlow
ToxicityNone
Resprout AbilityNo
Shape and OrientationErect
Active Growth PeriodSpring, Summer, Fall
BloatNone
C:N RatioHigh
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorGreen
Flower ConspicuousNo
Foliage ColorGreen
Foliage Porosity SummerDense
Foliage Porosity WinterPorous
Fruit/Seed ColorBrown
Nitrogen FixationNone
Low Growing GrassNo
LifespanLong
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)3.2
Growth RateModerate
Growth FormBunch
Fruit/Seed ConspicuousNo
Foliage TextureCoarse


Reproduction

Vegetative Spread RateNone
Small GrainNo
Seedling VigorMedium
Seed Spread RateModerate
Fruit/Seed Period EndFall
Propagated by TubersNo
Propagated by SprigsYes
Propagated by SodNo
Propagated by SeedYes
Propagated by CuttingsNo
Propagated by ContainerNo
Propagated by BulbNo
Propagated by Bare RootYes
Fruit/Seed PersistenceYes
Fruit/Seed Period BeginSummer
Fruit/Seed AbundanceHigh
Commercial AvailabilityNo Known Source
Bloom PeriodMid Summer
Propagated by CormNo


Suitability/Use

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

Roundhead Rush

Roundhead Rush

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