Blueberries in the Valley

Written by Jungle Jim

Although blueberries are not a major agricultural crop in our area, they can still be grown successfully. We recommend full to part sun and acidic (pH 4.5-5.5), moist, fertile, well drained soil. Varieties range in size from dwarfs (under 2’) to large hedge varieties (6’ plus).

Key factors in growing blueberries is the acidity and moisture of the soil. For our area, containers may be the best option to control the acidity level. Use our Camellia-Azalea-Gardenia mix for containers or mix in Peat Moss for in ground plantings. Most soils will require amending to maintain the acidity level over time. At planting, use a starter fertilizer, otherwise, an acidic fertilizer (our Camellia-Azalea-Gardenia Food) works well during the growing season/warm months, as well as the organic fertilizers cottonseed, fish and feather meals.

For our dry, Mediterranean summers we recommend keeping a close watch on the moisture level in the soil. Blueberries have shallow, compact roots that may dry out faster than fruit trees/bushes whose roots go down deeper. Mulching will help keep the soil moist and cool, but always avoid water-logging.

There are three types of blueberries: Highbush (Northern and Southern), Rabbiteye and Hardy half-high varieties. Northern Highbush are the typical grocery store type and most ripen from late spring to late summer- these are most of the varieties we carry. We recommend buying early, mid and late bearing varieties for cross pollination and a longer harvest. Two plants should supply enough berries for one person-and don’t forget to protect them with bird netting!

Blueberries tend to overbear. Avoid this by pruning during the winter. Remove old wood with too many fruit buds and too few leaf buds. You can also prune to shape the plant, bringing down the height or prevent sprawling.

Want more information? Come to our Growing Blueberries in the Valley seminar with Roger from Azul Blueberries June 18 at 11:00! Admission is free and we’ll be holding a raffle for a blueberry starter kit for attendees.

Jungle Jim