Caring for Tree Roots

Taking care of tree roots helps keep trees happy and healthy; master gardener Paul James explains how and when to plant and water--plus how to avoid injurying--a tree. Then, Alex Fernandez demonstrates modern-day applications of the old art of knot gardening. Next, Rosemary Nightingale shares her love of all things lavender. Finally, a look at the numerous varieties of pots available to gardeners today.

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