Regional Gardening Reports :: National Gardening Association

Southwestern Deserts

March, 2009
Regional Report

Shows & Events

Tucson Garden Tours
An abundance of gardens to visit in Tucson on Saturday, April 4. Master Gardeners will be at the Pima County Cooperative Extension demonstration garden and four private gardens on their self-guided Tucson tour. Tickets are $8. For info, call 520-626-5161 or visit Also, the Gardeners of Tucson offer their self-guided Golden Anniversary Tour showcasing six diverse gardens. Tickets are $10. Call 520-408-5118 for information.

Clever Gardening Technique

Water Deeply to Prevent Salt Burn
Desert water quality influences how we irrigate landscape plants. Our water contains high salt concentrations. Wherever water stops penetrating through soil, it deposits these salts. Frequent shallow irrigations allow salt to accumulate in the plant's root zone. Roots absorb salt and the plant develops "salt burn." If shallow irrigation continues, the plant may die. Follow the 1-2-3 Rule to ensure water soaks through the root zone with each irrigation. Water should soak 1 foot deep for shallow-rooted plants (annuals, perennials, cacti, succulents, groundcovers), 2 feet deep for shrubs and 3 feet deep for trees.


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