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BLUEBERRIES

Dummer. ゛☀
2017年08月06日
BOTANICAL NAME: Vaccinium
PLANT TYPE: Fruit

PLANT TYPE: Fruit
SUN EXPOSURE: Full Sun
SOIL TYPE: Any
SOIL PH: Acidic
Plump, juicy berries are now easy to grow in your backyard on bushes that are resistant to most pests and diseases, and can produce for up to 20 years. A relative of rhododendron and azalea, blueberry bushes aren’t just a great edible plant but also an attractive addition to your overall landscape, offering scarlet fall foliage and creamy white spring flowers.
Note: Blueberries are a favorite snack of hungry birds, so it’s recommended that you protect blueberry bushes ahead of time with netting or other methods.
There are three types of blueberries: highbush, lowbush, and hybrid half-high. The most commonly planted blueberry is the highbush. Most blueberry breeding has focused on this species, so there are many varieties that range widely in cold hardiness and fruit season, size, and flavor. See more about blueberry varieties below.


PLANTING
Blueberries thrive in soil that is acidic. The soil pH should ideally be between 4 and 5. The more organic matter added, the more tolerance to acidity blueberries will have.
The blueberry is a shallow-rooted plant. Therefore, it requires a soil that hold moisture, but also drains well and doesn’t stay wet.
Mix organic matter bushes into the soil before you set your blueberry bushes.
Bushes should be planted as early in the spring as possible. If available, one to three-year-old plants are a good choice. Be sure to go to a reputable nursery.
Dig holes about 20 inches deep and 18 inches wide (about twice as wide and twice as deep as the roots of the plant).
Space bushes about 5 feet apart in a row, with at least 8 feet between rows. Prepare a planting mixture of 2 parts loam and one part oak leaf mold, peat moss, aged sawdust, or compost, and place a layer of this mixture in the bottom of the hole.
Set the bush, with its roots spread out, at a depth of one inch more than it grew in the nursery and pack the hole tightly with soil.
Apply fertilizer one month after planting, not at time of planting. Then apply 1/2 ounce of a 10-10-10 fertilizer in a band around the plant 6 to 12 inches from the crown.
CARE
Mulch to keep shallow blueberry root systems moist, which is essential. Apply a 2-4 inch layer of woodchips, saw dust, or pine needles after planting.
Supply one to two inches of water per week.
It is imperative to drape netting over ripening blueberries, so that the birds won’t make away with the entire crop.
One year after planting, apply one ounce of 10-10-10 fertilizer per bush at bloom, and increase the rate by one ounce each year thereafter to a maximum of 8 ounces for mature bushes.
Do not allow the bush to produce fruit for the first year or two after planting. Pinch back any blossoms developing on newly set plants to allow growth.
For the first four years after planting, there is no need to prune blueberry bushes. From then on, pruning is needed to stimulate growth of the new shoots that will bear fruit the following season.
Prune plants in late winter or early spring before new growth begins.
Cut out dead, broken, short, weak, and spindly shoots.
On highbush varieties, begin with large cuts, removing wood that is more than six years old, drooping to the ground, or crowding the center of the bush. Also remove low-growing branches whose fruit will touch the ground, as well as spindly twigs.
Prune lowbush blueberries by cutting all stems to ground level. Pruned plants will not bear the season following pruning, so prune a different half of a planting every two years (or a different third of a planting every three years).
PESTS/DISEASES
Birds
Blueberry Maggot
Powdery Mildew
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