We have a wonderful, very large blue spruce in our yard. The lower branches are trimmed to about 5 1/2 feet from the ground. 15 years ago I had surrounded the trees with landscaping bricks and now with the trimmed branches I was thinking about blueberries. I have yet to test the soil, but I am sure it is acidic...my condern is sunlight. Under the tree it probably only gets 5 hours of sun a day. Is there a variety that does ok is less sunlight? If not, any other suggestions for planing a companion to my blue spruce, Thanks
I am pretty sure that it would be way too dry to grow Blueberries under your Spruce. Blueberries can take a little shade, but produce much better when they are in full sun all day. Also... I would guess that the soil is fairly depleted under a tree that large, and Blueberries like it rich and peaty...
How about planting some Oregon Grapes under your Spruce? I think they would grow well there, with minimal work.
thanks for the thoughts, Bill, maybe not blueberries, but it looks like the oregon grapes are rated only down to a zone 5. I'm often lucky to get zone 3 flowers to winter over even after being mulched, a zone 5 would never make it! Any other ideas?
Blueberries can grow successfully in zone 3. Choose a variety of blueberry bush that grows well in zone 3, such as blue ray, blue crop, patriot or spartan, which can survive in the colder winters of the zone. Blueberries take only a little care after they establish themselves in the soil. Blueberries like soil that is a little more acidic than most plants, typically from 4.5 to 4.9. Plant more than one blueberry bush for best results, as most varieties of blueberries need a companion for cross-pollination. Plant your blueberry bushes in your yard that is in full sun (as you have mentioned they can receive 5 hours of sunlight) and with well-drained soil. But make sure they receive full sun for atleast 5 hrs, if you can provide them more then its well and good.
I was flipping through one of the many seed catalogs I have received in the mail recently and came across "Jostaberry". According to Gurnsey's it does well in part shade and is rated at a zone 3. I could not find anything about this berry on your web site...what do you think????
Rubus nidigrolaria (Jostaberry) is a cross between the Black Currant and Gooseberry, but is more vigorous than either parent. It looks just like a gooseberry until it turns nearly black and ripens. The flavor is more like a Black Currant, although slightly milder, but berry size is larger. Jostaberries contain more vitamin C than gooseberries and are excellent for eating fresh or as jam, juice, wine, and in cordials.
Their ideal site is in full sun, but the effect of partial shade does them little harm. Avoid frost-pockets, their flowers can be damaged by a late frost which will of course result in a lower yield of fruit. Their ideal soil is a rich well-drained soil which will not dry out. They prefer a slightly acidic soil - around pH 6 to 6.5. They will grow well however on most normal soils. Watering, weed prevention and pruning are the key requirements for Jostaberries. They will appreciate watering when conditions are dry and especially when the fruits are forming. Keep the weeds at bay to prevent competition for moisture.
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