Prime-Ark ‘Horizon’ Semi-Thornless Blackberry
Rubus ‘Freedom’ Prime-Ark PPAF
NOTE: All of our fruit plants are grown in containers outdoors so they are fully rooted and landscape-ready upon arrival.
Plant Details
USDA Plant Hardiness Zones: 4a-8b Find Your Zone
Ripening Period: June to Frost!
Chill Hours: 400-500
Plant Type: Deciduous Fruit Bush
Height at Maturity: 4-5′
Width at Maturity: 3-4′
Spacing: 3-4′ for hedge
Growth Habit / Form: Upright, Bushy, Erect
Growth Rate: Moderate
Flower Color: White, Pink
Foliage Color: Green
Thornless: Yes
Fruit Color: Black
Fruit Size: Large (7 to 10 grams)
Fruit Taste: Very sweet, excellent flavor!
Soluble Sugar: 10-11%
Sun Needs: Full Sun or Mostly Sun
Water Needs: Average
Soil Type: Clay, Loam, Silt
Soil Moisture / Drainage: Well Drained Moist
Soil pH: 5.0 – 7.0
Maintenance / Care: Low
Description
Released in 2021 by the University of Arkansas breeding program, Prime-Ark ‘Horizon’ is a vigorous, semi-thornless Blackberry that produces very high yields of large, firm and sweet berries with excellent flavor. The berries weigh 7 to 10 grams! The floricane first harvest beginning in June goes for around 40 days. Primocane first harvest begins in early August and can extend well into October. In addition to excellent berry firmness in storage, leakage and decay have been among the best measured in the Arkansas program. An excellent new variety for the home gardener or farm.
NOTE: All of our fruit plants are grown in containers outdoors so they are fully rooted and landscape-ready upon arrival.
Growing Preferences
Prime Ark Horizon Blackberry will produce the best and most berries when growing in full sun. However, where space is limited, a blackberry plant will produce good crops even when grown in shade, which is something no other common fruit plants will do. Blackberries will grow reasonably well in most soil types except for very compacted clay or light chalky soil. In these soils it’ll be worth your time to mix in lots of organic compost to condition the soil and add beneficial nutrients and bacteria plants need to grow healthy. Blackberries grow and produce the best fruit in well-drained but moist fertile soil that is rich in organic matter. They like the soil to hold a good supply of water, especially when the fruits are developing in summer, but not so much water that the soil stays constantly soggy or wet.
Helpful Articles
Click on a link below to find helpful advice from our experts on planting and caring for Blackberry bushes.
How To Plant A Blackberry Bush
How To Fertilize & Water Blackberry Bushes
How To Prune And Train Blackberry Bushes
Plant Long & Prosper!
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Questions? Contact Us!
Came well packaged and looks to be very healthy. Just received 2 weeks ago so can’t comment fully but was well pleased with the shipping, packaging, and health of plant upon arrival!————————————————–Thanks for the awesome review! We are so glad you are pleased and we hope you enjoy it for years to come! 🙂 Beth Steele | WBG

















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