3 Prime Ark Horizon Blackberry Starter Plug – Everbearing Fruit Plant

Overview

Embark on a rewarding gardening journey with the Prime Ark Horizon Blackberry starter plugs. These exceptional plants represent a significant advancement in blackberry cultivation, developed by the University of Arkansas. Known for their vigorous growth and prolific fruiting, these primocane-fruiting (everbearing) blackberry plants offer a unique advantage: they produce fruit on both first-year canes (primocanes) and second-year canes (floricanes). This dual-fruiting characteristic ensures an extended harvest season, allowing you to enjoy fresh, succulent blackberries from summer through late fall. The ‘Horizon’ variety, scientifically known as Rubus ‘Horizon’, is celebrated for its robust nature and consistent performance, making it a favorite among home gardeners and commercial growers alike. Each starter plug is carefully cultivated to ensure a strong, healthy start in your garden, promising a bountiful yield of delicious fruit.

The Prime Ark Horizon Blackberry is particularly well-suited for a variety of climates, thriving especially in USDA Hardiness Zones 6-9. Its adaptability and disease resistance contribute to its widespread appeal. Whether you’re a seasoned gardener or just beginning, these blackberry starter plugs provide an excellent foundation for establishing a productive and long-lasting berry patch. Prepare to be delighted by the ease of growth and the abundance of sweet, juicy berries these plants will bring to your landscape.

Key Benefits

The Prime Ark Horizon Blackberry offers a multitude of benefits that make it a standout choice for any fruit enthusiast. From its unique fruiting habit to its delicious berries, these plants are designed to deliver satisfaction.

• Extended Harvest Season: Unlike traditional blackberries, the everbearing blackberry plant produces two crops: a floricane crop in summer and a primocane crop in late summer/fall. This means you get to enjoy fresh berries for a much longer period each year.
• High Yields of Large Berries: These plants are incredibly productive, yielding a generous amount of fruit. The berries themselves are impressively large, averaging 7.8 grams, with some individual fruits reaching up to 10-15 grams.
• Superior Berry Quality: The berries are not only large but also firm and flavorful, making them excellent for fresh eating, baking, jams, and freezing. Their robust texture ensures good shelf life and travel well.
• Primocane-Fruiting Advantage: The ability to fruit on primocanes (first-year canes) provides flexibility in pruning and ensures a crop even if floricanes are damaged by winter cold. This makes it a reliable choice for many regions.
• Adaptable to Various Climates: Thriving in USDA Hardiness Zones 6-9, this primocane blackberry variety is particularly successful in the mid to upper South, demonstrating good heat tolerance.
• Developed for Performance: As a University of Arkansas introduction, the ‘Horizon’ variety benefits from extensive research and breeding for improved disease resistance, vigor, and fruit quality.
• Versatile Use in the Garden: Beyond their fruit production, these plants can also serve as an attractive edible landscape feature, adding greenery and seasonal interest to your yard.

Plant Care & Growing Tips

Proper care is essential for ensuring a bountiful harvest from your Prime Ark Horizon Blackberry plants. These robust plants are relatively low-maintenance once established, but a good start and consistent care will maximize their potential. Blackberries thrive in full sun, requiring at least 6-8 hours of direct sunlight per day to produce the sweetest and most abundant fruit. Choose a location in your garden that receives ample sun exposure throughout the day. Well-draining soil is crucial; a loamy soil with a slightly acidic pH (5.5-6.5) is ideal. If your soil is heavy clay, amend it with organic matter like compost to improve drainage and aeration. For container planting, use a high-quality potting mix formulated for fruits or vegetables.

Watering should be consistent, especially during dry spells and when the plants are actively fruiting. Aim for about 1 inch of water per week, either from rainfall or irrigation. Avoid overhead watering if possible, as this can encourage fungal diseases; drip irrigation or soaker hoses are preferred. Fertilize in early spring with a balanced slow-release fertilizer or an organic compost application. Pruning is key for maximizing yields, particularly for a primocane blackberry. For a single primocane crop, cut all canes back to the ground after fruiting in late fall or early winter. For two crops, prune floricanes (canes that fruited in summer) after their harvest, and tip primocanes when they reach about 42 inches to encourage branching and more fruit. Protect plants in colder zones (6-7) during winter with mulch or row covers to prevent cane damage. Monitoring for pests and diseases, and addressing them promptly with organic or appropriate treatments, will keep your blackberry plant care routine effective and your plants healthy.

Size & Details

The Prime Ark Horizon Blackberry starter plugs are typically shipped as well-rooted, young plants ready for transplanting. While the initial size may be modest, these plants are vigorous growers and will quickly establish themselves in your garden. Expect canes to reach heights of 4-6 feet or more, depending on pruning practices and growing conditions. The plant has an upright, slightly spreading growth habit, often benefiting from a trellis or support system to manage the canes and facilitate harvesting. These plants are designed to start fruiting within their first year for the primocane crop, with subsequent floricane crops in the following seasons. With proper care, a single plant can become a prolific producer, yielding several pounds of berries annually. Each starter plug provides a strong foundation for developing a robust and productive Rubus Horizon bush, ensuring you’ll soon be enjoying fresh, homegrown blackberries.

Frequently Asked Questions

• Q: How big do these Prime Ark Horizon Blackberry plants get? A: With proper care and support, the canes can typically reach heights of 4-6 feet or more. Pruning will help manage their size and encourage fruit production.
• Q: Is this an indoor or outdoor plant? A: The Prime Ark Horizon Blackberry is an outdoor fruit plant, best suited for garden beds or large containers in full sun. It thrives in USDA Hardiness Zones 6-9.
• Q: How much sunlight does a Prime Ark Horizon Blackberry plant need? A: These blackberry plants require at least 6-8 hours of direct sunlight per day to produce the best fruit. Full sun exposure is crucial for optimal growth and yield.
• Q: Is this plant easy to care for? A: Yes, once established, the everbearing blackberry plant is relatively easy to care for. Consistent watering, annual fertilization, and appropriate pruning are the main requirements.
• Q: What condition will the starter plugs arrive in? A: The starter plugs are shipped as healthy, well-rooted young plants, carefully packaged to ensure they arrive in good condition and are ready for planting.
• Q: How long until it starts producing fruit? A: As a primocane-fruiting variety, the Prime Ark Horizon Blackberry can produce its first crop on new canes in the late summer or fall of its first year after planting.
• Q: When is the best time to plant Prime Ark Horizon Blackberry starter plugs? A: The best time to plant is typically in early spring after the last frost, allowing the plants ample time to establish their root system before the growing season.
• Q: What is the ideal soil type for this primocane blackberry? A: Well-draining, loamy soil with a slightly acidic pH (5.5-6.5) is ideal. Amending heavy soils with organic matter will greatly benefit growth.
• Q: Will this blackberry plant survive winter in my zone? A: The Rubus Horizon is hardy in USDA Zones 6-9. In colder parts of this range, some winter protection like mulching or covering may be beneficial, especially for primocanes.
• Q: Can I grow the Prime Ark Horizon Blackberry in a container? A: Yes, you can grow this blackberry in a large container (at least 15-20 gallons) with good drainage, ensuring it receives adequate sunlight and water.