THE NORTHERN GARDENER'S SOURCE FOR COLD CLIMATE GARDENING INFORMATION
HOW TO GROW BLUEBERRIES:
BLUEBERRIES
are very easy to grow deciduous fruit bearing shrubs that grow best in full
sun, with well drained, sandy, organically rich acid soil, (ph 4.5-5.2). Blueberries are extremely hardy and can be grown in USDA hardiness zones 4-9 depending on the variety.
You can purchase blueberry plants from your local nursery or garden center or online. When buying blueberry plants avoid buying bare-root plants as they may not survive. In addition try to only purchase blueberry plants that have been grown without pesticides or chemicals. You can purchase pesticide-free blue berry plants online at: Stargazer Perennials or at Farm Fresh Living
Some of the hardiest varieties that are proven performers are:
Soil
Preparation for Blueberry Plants:
QUICK
TIP: If your soil pH is higher than 7.0, or if you do not want to bother with
determining and correcting your soil pH, consider planting blueberries in a
raised bed or a large container. Planting blueberry plants in a raised bed
allows you to instantly achieve the correct soil pH by the amendments that you
add.
When you
plant blueberries you are planting a fruit bearing plant that will provide you
with enjoyment and tasty berries for many years to come; for more information about Using Blueberry Plants in Your Landscape, read the attached article at Farm Fresh Living. Taking the time to do
a little soil preparation before you plant your blueberries will pay you back in increased berry production and
plant vigor. In order for blueberry plants to produce berries the soil pH needs
to be between 4.5 – 5.2. Soils not within the range of pH acceptability for
blueberry plant growth must be prepared BEFORE planting. 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. When several
plants are to be grown together, more satisfactory results will be obtained if
an entire bed is prepared rather than digging holes for individual plants.
If the pH
of the soil is between 5.5 and 7.0 and the texture is sandy to sandy loam, the
following method can be used. Mix 4 to 6 inches of acid peat into the top 6 to
8 inches of soil. In addition to acidifying the soil, the peat increases the
soil organic matter content. In addition to adding peat, you can also add pine
needles or untreated pine wood shavings or bark to the soil. The pine needles
and wood shaving are very acidic and will assist in lowering the pH level of
the soil.
Soils
with a pH greater than 7.0 will require higher rates of acidifying amendments
and are not recommended for blueberries. If your soil pH is higher than 7.0
consider planting blueberries in a raised bed or a large container. Planting
blueberry plants in a raised bed allows you to instantly achieve the correct soil
pH by the amendments that you add.
Blueberry
Plant Care:
Blueberries
require adequate water, especially the first year that they are planted, to properly
establish a good root system. During the
growing season,
blueberry plants typically require 1” of water per week. If you are unsure about how much water to give your blueberry plants, dig down approximately 6" deep 12" away from the crown of the plant. The soil should be moist but not soggy. Watering several times per week for a longer period of time is more effective than lightly watering everyday.
To protect
the roots, discourage weed growth and help retain moisture, mulch around the
base of the blueberry plants with organic mulch or with any of the following;
pine bark, pine chips and needles or pine sawdust.
Fertilize
blueberry plants with an acid fertilizer such as Down to Earth Organic Acid Fertilizer when
the buds first swell in the spring, then once again during the growing season
and once prior to fall. In the first year after planting, blueberries need
special care to help them become well established. In addition to watering, be
sure to remove the flowers during the first year of growth. Although hard to do,
you will be rewarded next year with a higher yielding harvest and healthier
plant. Removing the flowers encourages the plant to focus all of its energy into producing a
vigorous plant with many branches and a better root system, rather than producing fruit.
Prune young
blueberry plants by removing dead, diseased or damaged canes and twiggy growth
each spring. As plants mature, open the center to allow sunlight and good air
flow, keeping 8-10 canes arising from the crown by removing the oldest dark
cane and remaining low growing, dead and diseased branches and small twigs.