Spearleaf Arnica

Scientific Name: Arnica longifolia D.C. Eaton


Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Asteridae / Asterales / Asteraceae / Compositae / Arnica L./ Arnica longifolia D.C. Eaton

Spearleaf Arnica
General Information
Usda SymbolARLO6
GroupDicot
Life CyclePerennial
Growth HabitsForb/herb
Native LocationsARLO6

Plant Guide

Use a soil moisture meter to monitor the soil moisture where Spearleaf Arnica is planted.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)-33
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsYes
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceHigh
CaCO3 ToleranceMedium
Cold Stratification RequiredNo
Drought ToleranceNone
Fertility RequirementMedium
Fire ToleranceMedium
Frost Free Days, Minimum100
Hedge ToleranceNone
Moisture UseHigh
pH, Maximum8.0
pH, Minimum6.0
Precipitation, Maximum60
Precipitation, Minimum16
Root Depth, Minimum (inches)10
Salinity ToleranceNone
Shade ToleranceTolerant


Morphology/Physiology

After Harvest Regrowth RateSlow
ToxicityNone
Shape and OrientationErect
Nitrogen FixationNone
Resprout AbilityNo
Active Growth PeriodSummer
BloatNone
C:N RatioMedium
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorYellow
Flower ConspicuousYes
Foliage ColorGreen
Foliage Porosity SummerPorous
Foliage TextureCoarse
Low Growing GrassNo
LifespanModerate
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)2.0
Growth RateModerate
Growth FormBunch
Fruit/Seed ConspicuousNo
Fruit/Seed ColorBrown
Foliage Porosity WinterPorous


Reproduction

Vegetative Spread RateNone
Small GrainNo
Seedling VigorMedium
Seed Spread RateSlow
Seed per Pound450000
Fruit/Seed PersistenceNo
Propagated by TubersNo
Propagated by SprigsNo
Propagated by SodNo
Propagated by SeedYes
Propagated by CormNo
Propagated by ContainerNo
Propagated by BulbNo
Propagated by Bare RootNo
Fruit/Seed Period EndSummer
Fruit/Seed Period BeginSummer
Fruit/Seed AbundanceMedium
Commercial AvailabilityNo Known Source
Bloom PeriodEarly Summer
Propagated by CuttingsNo


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

Spearleaf Arnica

Spearleaf Arnica

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