Garden Myths - Learn the truth about gardening

Archive for the Trees Category

Walnuts, Juglone and Allelopathy

The common statement “nothing grows under walnut trees” is not true. “Walnuts produce juglone”, is not entirely true either. “You need to compost walnut wood chips before using them in the garden”, is false. “The allelopathic properties of walnuts are well understood” – definitely not true.

This is a popular subject that is routinely discussed and written about, but the truth around walnut trees is anything but clear.

Black Walnut - Walnuts, Juglone and Allelopathy

Black Walnut – Walnuts, Juglone and Allelopathy

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Sunscald on Trees – Prevention

It might surprise you to learn that trees do get sunscald or sunburn and the remedy is not an SPF 30 lotion. Sunscald on trees usually happens on the south or south-west exposed bark. The bark is damaged and in severe cases can result in the death of the tree.

Historically, sunscald has been prevented by wrapping or painting the trunk of the tree. Do these preventative methods work? Are they still recommended? Time to have a closer look at the problem.

sunscald on sugar maple tree, prevention, by Robert Pavlis

Sunscald on a sugar maple tree, by Robert Pavlis

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Christmas Tree Water

There is nothing quite like a real Christmas tree. But the cut tree slowly dries out and we want to preserve them as long as possible. Lots of additives have been suggested to keep your tree fresh including commercial tree preservatives, molasses, sugar, bleach, soft drinks, aspirin, honey and fertilizer. Which of these work the best?

Christmas tree water

Christmas tree water

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Best Time To Plant Trees

When should you plant new trees? Many people plant in spring, probably because they want to do some gardening at that time of year. Others claim that fall planting is better. Here is what the experts say.

Best time to plant trees

Best time to plant trees

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Pruning Trees and Shrubs – What is the Best Time?

Pruning trees and shrubs in late summer is NOT recommended because such pruning causes new soft growth that can’t harden off before winter. You will find this advice everywhere, but is it correct?

Pruning trees and shrubs

Pruning trees and shrubs – what is the best time?

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