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Q&A: Measuring Watering Depth
Answer: Mature vegetables should be watered to a depth of about 12 inches to moisten the entire root system. To determine the depth to which soil is moist, probe the soil with a sharp, pointed piece of wood or metal, or even a long-handled screwdriver. Insert it into the soil. It will move easily through moist soil and stop when it reaches dry soil. This is an easy method that works for landscape plants as well. Always water slowly and deeply to leach salts below the root zone. Just barely allow soil to dry between waterings.
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Posted Comments:
09-08-2008 12:41
Judy (horticulturist) wrote:
Measuring Watering Depth
I think you should have mentioned that vegetables & flowers should be watered to a depth of 12", shrubs and bushes to a depth of 24" (2'), and trees to a depth of 3'. (use a soil probe)
Don't water again until only the top 1" of soil is moist (for flowers and veggies), the top 2" (for shrubs and bushes), and the top 3" of soil is moist for trees.
Don't water again until only the top 1" of soil is moist (for flowers and veggies), the top 2" (for shrubs and bushes), and the top 3" of soil is moist for trees.
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