How to Grow Navaho Blackberries

Choose a spot for your Navajo blackberry plant. The area you choose must have full sun and well-draining soil. The plant is extremely hardy and can tolerate temperatures as low as -9 degrees Fahrenheit. This hardiness will allow the Navajo blackberry to be planted at any time of year in most climates.

Plant an established plant or a root cutting in well-draining for the best results. To plant a root cutting, plant it about 2 inches below the soil and water the soil thoroughly. For a plant, dig a hole large enough to plant the entire root ball without crushing he roots. For either type of planting, spread a layer of mulch about 2 inches deep over the soil to keep the soil moist.

Provide a support for a young plant. The canes of the Navajo blackberry are straight, so the plant doesn't need latticework or a post to climb like many blackberry plants do, but one thin support can help the young plants to grow straighter, keeping the canes out of any standing water that may collect after a rain to reduce the risk of plant disease. Use a thin plant support and tie the largest canes of the plant loosely to the support with string or yarn. As the plant grows, untie the canes and retie them in another position to avoid damaging the leaves. Once the canes are strong enough to stand up on their own, untie the canes and allow the plant to stand by itself.

Water the plant often if there is not enough rainfall to keep the soil moist. The mulch will help to keep the soil moisture from evaporating as quickly, but the plants should still be watered at least twice a week in most climates.