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Red Raspberry

General
Common NameRed Raspberry
Latin NameRubus idaeus
CategoryFruits 
FamilyBrambles 
VarietySee Cornell Guide to Growing Fruit at Home 
Visual Traits
Flowerwhite, July-September
Fruitaggregates of drupelets; red, white, or yellow
Height2-9 ft
Cultivation
Cultivation and Mulchingcultivate 3' wide strip, no deeper than 2"; do not mulch
Field preparation and plantingprepare soil one season prior to planting; clear wild brambles; do not plant in location that may host verticillum wilt
Field spacing / planting depth30" within rows, 9-10' between rows / 1" deeper than grown in nursery
Harvestevery 2-3days
Pollinationself-incompatible
Propagation methodroot suckers, bare root, tissue culture
Pruningmid-march, leave 3-4 canes / linear foot of row; prune off winter-damaged tips and healthy tips back to 1' beyond trellis
Retail SourceSee www.hort.cornell.edu/nursery
Seed treatment and storagefor spring planting, scarify, warm stratification 90days at 68-86F, followed by cold stratification for 90days at 36-41F
Softwood cuttingssummer and/or fall; berries do not last > 2-3 days on plant
Sowing seedlate summer, fall; direct seed to disturbed sites
Training / TrellisingT-shaped or V-shaped trellis
Transplantrooted canes early spring; tissue culture plantlets after last frost
Watering guidelineswater liberally at planting; require irrigation throughout growing season; early morning so that plants may dry during day; plant in raised beds if threat of water accumulation
Critters
Insect and invertebrate pestsraspberry cane borers; raspberry fruitworms; spider mites; blackberry leafminers; raspberry sawflies; japanese beetles
Pathogensphytophthora root rot, mosaic virus, ringspot virus, verticillium wilt; spur blight, cane blight, anthracnose; botrytis fruit rot; orange rust
Wildlife Pestsrodents
Soils
Fertility / qualitywell drained
Moisture and drainageexcessive water promotes phytophthora root rot or frost heave; drought intolerant
pH5.5-6.5
Soils and topographywet or dry woods, open and rocky slopes
Texturesandy loam
Growth Pattern
Fruit bearing age / full crop load1-2y / 3y (replant after 10y)
Growth ratefast
Longevityshort
Habitat and Climate
Fire tolerancevery tolerant
Frost-free days (FFD)128
Hardiness ZoneZones 5-7
Native Rangetemperate zones
Wind / ice / frost susceptibilitysusceptible to frost heave in wet soils
Light
Light recommendationfull sun
Shade toleranceintolerant (R. ideaus ssp idaeus) to tolerant (Rubus idaeus ssp.strigosus)
Vegetation Associations
Competitive abilitypioneer species; declines as canopy closes, seeds persist to 60y and may thrive in forest openings
Special Notes
Note 1hydridizes readily with other Rubus sp.