My best advice is to look at the amount of light they received, horticulture expert Bob Morris says, and then at the varieties you chose.
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A gardener writes that his raised garden bed just hasn’t been as productive the past five years. What’s the solution?
It’s expensive to have them trimmed twice a year. If their beauty outweighs their expense, keep them. But if you don’t enjoy them anymore, have them removed.
The best time to plant winter-hardy trees and shrubs is during the fall, from around the end of September through mid-November.
You can typically remove about one-third of the total tree roots with no problem. This is done sometimes when trenches are cut in the soil for burying irrigation lines. But when roots are cut, about one-third of the top should be removed as well.