Location:
Need Full Sunlight and Well-Drained Soil. Plants will tolerate
partial shade, but as shade increases, plants produce fewer blossoms
and fruit production declines. Avoid areas surrounded by trees,
which provide too much shade, compete with plants for water and
nutrients, and interfere with air movement around plants. Poor
air movement increases danger of spring frost injury to blossoms
and favors disease development.
Soil: Blueberries require acid soil with a pH
of 4.5 to 4.8. We highly recommend you have your soil checked
to ensure the proper pH. You can take a soil sample to your local
County Extension Office. If the pH is too high, the growth of
the plant is slowed and the foliage turns yellow. If the pH is
too high for an extended period of time, the plants will die.
Remember: Blueberry plants are long-lived so considerable time
and effort in preparing the soil is a wise investment.
When
the pH is too high, ground sulfur or ammonia sulfate should be
applied to increase the soil acidity. Five hundred pounds of sulfur
per acre will change pH of 5.5 to 4.4 in lightly sandy soils.
If pH is too low, dolomitic limestone applied at necessary rate
will raise the pH. Soil test should be made annually.
Pollination:
Rabbiteye varieties do require cross-pollination. They require
the transfer of pollen to one variety from a different variety
for proper fruit set. The cross-pollination results not only in
increased fruit set, but, for many varieties, also in an increase
in berry size, seed content, and earlier ripening of berries.
We recommend that you have at least 3 different varieties planted
to get the maximum fruit set.
Spacing:
We recommend a spacing of 4 to 5 feet between plants for hedging
but you can go further as needed. Plant rows about 10 feet apart.
Planting
Instructions:
Set
them out as soon as possible. If you cannot set them
within a few days, then heel them in or keep them in cool, moist
place and make sure the roots do not dry out.
Planting
- When digging the planting hole, remember that blueberry
plants have a dense, shallow root system. A wide hole will be
more important than a deep one. To prepare the planting hole,
dig it deep enough to allow the plant to be placed in it at the
same depth as it grew in the nursery (you can often see a soil
line on the branches) and wide enough to allow the roots to be
spread out completely. Add five to six gallons of soaking wet
peat moss to each planting hole and mix it 50-50 with the soil.
(You will need to prepare the peat moss prior to planting. Break
up the peat bale and wet it with a hose. It is easier to soak
it for several days in a tub of water. Once your peat is soaking
wet, it will do a good job of holding soil moisture for your plants.
Don’t ever throw dry peat moss into the planting hole and
then try to water it in. The dry peat will actually draw moisture
away from your new planted blueberry plant, weakening or possibly
killing it.) Make somewhat of a dirt mount in the middle of the
hole to set the plant on. Adjust the plant to set at the proper
height, spread the roots out fully, and fill the hole back in
with the soil. Firm the dirt with the heel of your foot and water
it well.
Mulch
- Mulch the plants with 4 to 6 inches of pine straw, ground pine
bark, or well rotted sawdust. Surface mulch helps maintain uniform
soil moisture and will also discourage weed growth. Replenish
the mulch as needed. (Note: We do not recommend using leaves,
grass clippings and/or layers of newspaper, that mat down and
will deprive the blueberry roots of needed oxygen.)
Water
– Water the plants frequently enough to keep the soil moist
but not saturated.
Fertilization
– Roots are very sensitive to readily soluble fertilizers
and can be injured with excessive amounts. So be sure and do not
over fertilize these plants, as it can cause root burn. Plants
should be fertilized twice during the first growing season; early
March with two ounces of 12-4-8. Keep fertilizer at least one
foot away from plants in a circle. You could also use Azalea Food
Fertilizer or Miracle Grow’s Product called Mir-Acid. This
should be repeated again in mid-June. If you notice yellowing
on the plants, you can use one ounce of ammonia sulfate. Note:
Do not use Calcium Nitrate around plants.
Fertilization
for Older Plants: See Table 1 below for recommendations.
The following is another good way to get excellent results: Apply
Osmocote 18-6-12, ¼ pound per plant in mid-March. This
is a slow release fertilizer and will last six to nine months.
This will not burn the roots and should be placed in the middle
of the plants. Miracid 30-10-1- soluble fertilizer with iron chelate
is an excellent fertilizer for foliage if applied as manufacturers
recommend. It will not burn plants and will give quick results.
Suggested fertilizer rates for blueberries:
Amount of fertilizer per plant
Growing season (leaf) 12-4-8(a) or ammonium sulfate
Newly set 2.0 ounces .75 ounces
1st(b) 2.0 ounces .75 ounces
2nd 4.0 ounces 1.5 ounces
3rd 4.0 ounces 2.0 ounces
4th 6.0 ounces 3.0 ounces
5th 8.0 ounces 3.5 ounces
6th and older 10.0 ounces 4.0 ounces
(a)A typical acid base fertilizer analysis available for azaleas
and camellias.
(b)First growing season is referred to as 1st leaf, with subsequent
seasons as 2nd leaf, etc.
Harvesting:
To get the highest quality berries, harvest 4 to 6 days after
the berry turns completely blue. If picked earlier the berries
will not be as large and the flavor will not be as fully developed.
Berries picked when not completely ripe will ripen off the bush
– but the quality will not be as good as if it ripened on
the vine.
Protection
From Birds: Birds present one of the worst problems of
any pest. They are especially frustrating for the small grower.
Nearly any kind of bird will eat your berries. The most effective
type of bird control is netting. You can cover individual bushes
for nearly 100 percent bird protection. A durable, synthetic netting
made of nylon and treated to resist deterioration from ultraviolet
rays will usually last for several seasons. Place the netting
over the bushes as the first fruits begin to ripen and remove
it when harvesting is complete.
|