California Blackberry

Scientific Name: Rubus ursinus Cham. & Schltdl.

Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Rosidae / Rosales / Rosaceae / Rubus L./ Rubus ursinus Cham. & Schltdl.

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General Information
Usda SymbolRUUR
GroupDicot
Life CyclePerennial
Growth HabitsSubshrub
Native LocationsRUUR

Plant Guide

Use soil moisture sensors to measure the soil moisture of California Blackberry.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)7
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsYes
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceNone
CaCO3 ToleranceMedium
Cold Stratification RequiredNo
Drought ToleranceMedium
Fertility RequirementMedium
Fire ToleranceHigh
Frost Free Days, Minimum190
Hedge ToleranceNone
Moisture UseMedium
pH, Maximum7.5
pH, Minimum6.0
Planting Density per Acre, Maxim2700
Planting Density per Acre, Minim1200
Precipitation, Maximum24
Precipitation, Minimum14
Root Depth, Minimum (inches)14
Salinity ToleranceNone
Shade ToleranceIntolerant


Morphology/Physiology

BloatNone
ToxicityNone
Resprout AbilityYes
Shape and OrientationSemi-Erect
Active Growth PeriodSpring and Summer
C:N RatioHigh
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorWhite
Flower ConspicuousYes
Foliage ColorGreen
Foliage Porosity SummerDense
Foliage Porosity WinterPorous
Foliage TextureCoarse
Fruit/Seed ConspicuousYes
Nitrogen FixationNone
Low Growing GrassNo
LifespanShort
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)2.0
Height at 20 Years, Maximum (fee2
Growth RateRapid
Growth FormThicket Forming
Fruit/Seed ColorBlack


Reproduction

Vegetative Spread RateModerate
Small GrainNo
Seedling VigorLow
Seed Spread RateSlow
Fruit/Seed Period EndSummer
Seed per Pound327000
Propagated by TubersNo
Propagated by SprigsYes
Propagated by SodNo
Propagated by SeedYes
Propagated by CormNo
Propagated by ContainerYes
Propagated by BulbNo
Propagated by Bare RootYes
Fruit/Seed PersistenceNo
Fruit/Seed Period BeginSpring
Fruit/Seed AbundanceMedium
Commercial AvailabilityContracting Only
Bloom PeriodEarly Spring
Propagated by CuttingsNo


Suitability/Use

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