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Article ThumbSaving Dahlias

Big beefy dahlias with their dinner-plate-sized flowers are darlings of the garden from summer through the first autumn frosts. Although many gardeners treat dahlias as disposable annuals, it’s easy to store them over winter – and save money – for another display the following year. It’s simply a matter of digging up the tubers and roots after the first fall frost.


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questions

I applied commercial compost and hardwood mulch to an area where I am establishing a small garden. I did a few soil tests on the area and the results indicated the nitrogen was depleted. I intend to spread a bag of dried blood to rectify this problem When is the best time to apply the dried blood?

I have read that purple coneflowers (Echinacea) are a good source of food for birds in the winter. Will they be okay if not trimmed back until spring? If so, how early should they be trimmed?

I have two 3-year-old rose of Sharon plants, about 20 feet apart. One blooms every year. The other plant forms about 100 buds and looks healthy, but it has not bloomed in the last two years. The buds are solidly closed and look as if they are rotting from the inside out. There does not seem to be any sign of insects on the plant. What is this problem?

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