Duke Blueberry (Vaccinium corymbosum 'Duke')

Pollination Information for Duke Blueberry (Vaccinium corymbosum 'Duke')

Duke Blueberry is a variety of highbush blueberry, Vaccinium corymbosum. Blueberries are self-fertile, but usually produce higher yields if cross-pollinated by another compatible blueberry cultivar.

Pollination is the transfer of pollen from the male reproductive organs (anthers) to the female reproductive organs (stigma) of flowers. This process is essential for the fruit to develop through fertilization.

Basic Pollination Facts:

• Plant Type: Highbush blueberry
• Botanical Name: Vaccinium corymbosum 'Duke'
• Pollination Type: Self-fertile (able to set fruit with its own pollen) but benefits from cross-pollination

Cross-Pollination:

Cross-pollination occurs when pollen is transferred between two different blueberry plants of compatible cultivars. Cross-pollination increases the fruit set and improves the quality of the berries.

Recommended Pollinators:

To achieve higher yields, it is recommended to plant a different blueberry cultivar near Duke Blueberry. Ideally, choose another highbush blueberry variety that blooms around the same time as Duke Blueberry. Some compatible cultivars commonly recommended as pollinators for Duke Blueberry include:

• Bluecrop
• Bluejay
• Patriot
• Blueray
• Jersey

Pollination Method:

The primary pollinators of blueberries are bees, especially honeybees and bumblebees. These insects transfer pollen while foraging for nectar and pollen from the flowers. Providing a suitable habitat and attracting bees to your garden can increase the chances of successful pollination. Avoid the use of insecticides during bloom as it may harm the pollinators.

You can also manually assist in pollination by using a small brush or cotton swab to transfer pollen from one flower to another during the flowering season.

Pollination Time:

The flowering time of Duke Blueberry typically occurs in spring, usually between April and May. This is the crucial period for pollination. It is important to have compatible pollinator plants blooming simultaneously to ensure successful cross-pollination.

Remember, while Duke Blueberry is self-fertile, planting a compatible pollinator nearby can increase fruit yields and improve overall fruit quality. Bees play a critical role in the natural pollination process, so it's essential to create a bee-friendly environment in your garden.

Duke Blueberry (Vaccinium corymbosum 'Duke') - FAQs

1. What is Duke Blueberry?

Duke Blueberry (Vaccinium corymbosum 'Duke') is a variety of highbush blueberry known for its large and flavorful berries. It is a deciduous shrub that belongs to the Ericaceae family.

2. How tall does Duke Blueberry grow?

Duke Blueberry can grow between 4 to 6 feet in height, making it a compact variety suitable for small gardens or containers.

3. What is the hardiness zone for Duke Blueberry?

Duke Blueberry is hardy in zones 5-7. It can tolerate colder temperatures but may require extra protection in extreme winter conditions.

4. When do Duke Blueberry plants bloom?

The Duke Blueberry plant typically blooms in late spring to early summer. It produces small, white or pink bell-shaped flowers that are attractive to bees and other pollinators.

5. When can I harvest the berries?

The berries of Duke Blueberry usually ripen in mid to late summer, depending on the climate and growing conditions. You can harvest them when they are fully blue and easily detach from the plant with a gentle tug.

6. How should I care for Duke Blueberry?

Here are some care tips for Duke Blueberry:

• Plant it in well-drained, acidic soil with a pH level between 4.5 to 5.5.
• Choose a location with full sun or partial shade.
• Water regularly, especially during dry spells, to keep the soil consistently moist.
• Apply mulch around the base of the plant to retain moisture and suppress weed growth.
• Prune the plant in late winter or early spring to remove dead or damaged branches and maintain its shape.
• Fertilize annually in early spring using an acidic fertilizer formulated for blueberries.
• Protect the plant from birds by covering it with bird netting during the fruiting season.

7. Can Duke Blueberry be grown in containers?

Yes, Duke Blueberry is suitable for container gardening. Use a large pot with drainage holes, and ensure the soil is acidic and well-drained. Place the container in a sunny spot, and provide regular watering and fertilization for optimum growth.

8. Are Duke Blueberries self-pollinating?

No, Duke Blueberries are not self-pollinating. It is recommended to plant multiple blueberry varieties near each other to ensure cross-pollination and enhance fruit production.

9. How can I prevent or control pests and diseases?

Common pests that may affect Duke Blueberry include aphids, blueberry maggot, and fruitworms. Regularly inspect the plant for signs of infestation and use appropriate organic insecticides or insecticidal soaps if necessary. Some common diseases include powdery mildew, root rot, and leaf spot. Ensure proper air circulation, avoid overwatering, and apply fungicides as required.

10. How long does Duke Blueberry plant live?

With proper care and maintenance, Duke Blueberry plants can live around 10 to 20 years, providing you with delicious berries for many seasons to come.

Planting & Care for Duke Blueberry (Vaccinium corymbosum 'Duke')

Planting:

1. Choose a location with full sun exposure (at least 6-8 hours of direct sunlight per day).
2. Ensure the soil is acidic (pH level between 4 and 5.5), well-draining, and rich in organic matter.
3. Dig a hole that is twice as wide and as deep as the root ball of the Duke Blueberry plant.
4. Carefully remove the plant from its container and gently loosen the roots.
5. Place the plant in the hole, ensuring that the top of the root ball is level with the soil surface.
6. Backfill the hole with soil, firming it gently to eliminate any air pockets.
7. Water the plant thoroughly after planting to settle the soil.

Care:

• Watering: Keep the soil consistently moist but not waterlogged. Blueberries require about 1-2 inches of water per week. Water deeply and thoroughly, especially during dry spells.
• Fertilization: Apply a balanced, slow-release fertilizer specifically formulated for acid-loving plants in early spring. Follow the instructions on the fertilizer packaging for application rates.
• Pruning: Prune Duke Blueberry plants during late winter or early spring. Remove any dead, damaged, or crossing branches. Thin out the center of the plant to improve airflow and sunlight penetration.
• Pollination: Blueberries are self-fertile, but cross-pollination with another variety can increase fruit production. Planting multiple blueberry varieties nearby is recommended to ensure better pollination.
• Mulching: Apply a layer of organic mulch around the base of the plant to help conserve moisture, regulate soil temperature, and suppress weed growth. Pine needles, wood chips, or pine bark are ideal mulch options.
• Pests and Diseases: Watch out for common blueberry pests such as aphids, leafhoppers, and blueberry maggots. Regularly inspect the plant for signs of disease, including fungal infections like powdery mildew and botrytis blight. Treat any issues promptly with appropriate pesticides or fungicides.

By following these planting and care guidelines, you can ensure healthy growth and abundant harvest from your Duke Blueberry plant.