We all know by now that if we eat loads of blueberries, we will live forever, right?
This native American plant is one of many in the genus Vaccinium that also includes the cranberry, huckleberry, bilberry, deerberry and partridgeberry. These berries are highly favored by wildlife and the spring blossoms are very attractive to numerous indigenous nectar seeking butterflies, moths, wasps and bees (and humans). Hence the trio of horticultural benefits from our point of view: they are ornamental, edible and wildlife friendly.
Blueberry is a natural and rich source of antioxidants that include flavonoids (catechin, epicatechin), anthocyanin (which gives the blue pigment to the fruit), beta-carotene, phenolic compounds, and ellagic acid (ellagitannin). Blueberry is also high in antioxidant vitamins such as vitamin E, A and C and is an excellent source of fiber, no matter what life form eats them!
Highbush blueberries (Vaccinium corymbosum) or the low bush (Vaccinium angustifolium) are the fruits of which we humans are particularly fond. These well-behaved plants make extraordinary edible landscape shrubs that yield phenomenal fall color. The species angustifolium are the typical little Maine blueberry, and they make lovely ground cover or low hedging material. The corymbosum species can grow as tall as five to six feet and more with an equal width, and are the type of berry (for the most part) that we buy at the store.
Considering all of the obvious benefits of blueberries it is a mystery why every home does not have a few, if not several, of these plants tucked in and around the landscape. It is not necessary to have a ‘patch’. These plants are quite forgiving about location as long as they have six hours of sun. Bloom time for the plants spans from early to late spring. In northern zones, mid to late bloomers may insure that the blossoms are not killed by late frost. One should have more than one of each bush by bloom time (early, mid, late) for cross-pollination.
Blueberries prefer an acid soil in the 4.6 – 5.1 pH range. Fortunately, Vermont and New Hampshire have naturally acidic soil. The more organic matter added to the soil, and methods of organic care given, the more forgiving the plants are of any pH discrepancies. Composted coffee grounds, leaf mold, sawdust and cottonseed meal can keep the pH within range nicely. Once established all they need is an annual organic fertilizing treatment and two inches of water per week (especially for plumping up the set fruit). Once the shrubs are well established and growing for a few years, annual pruning is crucial to encourage new growth and a large berry harvest the next year.
One highbush blueberry plant, at maturity, can yield around two gallons of berries in a season. Berries are easy to freeze – no fuss required – just pop them into containers and freeze. Frozen berries have the same nutritional benefits of fresh berries and are incredibly easy to use.
