Alert: Limited Online Availability

Now that summer is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

Thornless Boysenberry

Rubus ursinus x ideaus 'Thornless'

SKU
06991
A prolific producer of sweet-tart, large, reddish black fruit in midsummer on second year growth. Small white flowers precede the fruit on thornless canes in spring. The fruit can be eaten fresh, cooked, or frozen. Deciduous.
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5-9

Good to grow! 9

 Change

Full sun

Water when top 2 inches of soil is dry.

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More Information
Botanical PronunciationROO-bus ur-SEE-nus eye-DAY-us
LoreThe name blackberry is a misnomer because this isn't a true berry. It's a drupe, an entirely different sort of fruit.
Average Size at MaturityQuickly reaches 5 to 6 ft. tall and wide.
Bloom TimeSpring
Design IdeasPlant this tasty berry near a fence, wall or wherever you can provide plenty of support and room for its fruit-laden, thornless canes. Grow as a freestanding shrub in a large garden bed and stake canes. This berry is an excellent addition to the fruit and kitchen garden.
Deciduous/ EvergreenDeciduous
Flower ColorWhite
Foliage ColorGreen
Garden StyleCottage, Rustic
Growth RateFast
Landscape UseBorder
Light NeedsFull sun
Special FeatureEdible, Showy Fruit, Fast Growing, Benefits Birds
Water NeedsModerate
Watering NeedsWater when top 2 inches of soil is dry.
Companion PlantsSalvia (Salvia); Rosemary (Rosmarinus); Yarrow (Achillea); Russian Sage (Perovskia); Lavender (Lavandula)

Provide fertile, mildly acidic, well-drained soil. In hot summer regions, shelter from harsh sun, and mulch to keep roots cool. Water deeply, regularly in first growing season to establish extensive root system. Feed in early spring. After harvest, remove canes that have fruited. Leave newer canes to produce next season's crop; train on a trellis.

This Plant's Growing Zones: 5-9

USDA Cold Hardiness Zone Map

Your USDA Cold Hardiness Zone: 9

Good to grow!