Guide: Soil Moisture Recommendations for Flowers, Plants and Vegetables

Guide: Soil Moisture Recommendations for Flowers, Plants and Vegetables
By AcuRite Team
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Guide: Soil Moisture Recommendations for Flowers, Plants and Vegetables

Soil Types and Watering Information

Loam Soil:

Very porous and retains moisture well. This is the optimal soil type and can be watered normally.

Sandy Soil:

Extremely porous and drains quickly. Water slowly to saturate soil root zones.

Clay Soil:

Holds more water, but is slow to absorb and release. Do not water faster than the soil can absorb it.

Moisture Meter for Plants and Vegetables

General Soil Moisture Information & Tips

  • If you have sandy or very heavy clay soils and would like to improve its water retention, add compost or organic matter to your soil.
  • Adding sand to clay soils, or clay to sandy soils will create a cement-like soil, making water retention worse.
  • One inch of water per week is adequate for most plants. You may use a rain gauge to assist (not included; sold separately).

Recommended Soil Moisture Levels

The plants listed in this guide represent commonly found species. Consult a local horticulture professional for more specific details on plants not found on this list.

NOTE: All vegetables require soil moisture between 41% - 80%.

Click the images below to view them larger.

Moisture levels for Flowers

Moisture levels for trees and shrubs

AcuRite Solution:
AcuRite Soil Moisture Meter to help keep your plants and garden healthy.

April 4, 2018
Terrence Belunes
July 30, 2019 at 8:48 PM
There are no vegetables listed.................
Margaret Houlihan
November 27, 2019 at 6:54 PM the top of the chart before there are any lists, the author said that all vegetables need 41% to 80%. I had the same question, but then saw the statement that starts with NOTE:. I'm going to guess that you missed that the same way I did!
June 6, 2020 at 12:16 PM
Great list and really useful. I noticed you don't have much on succulents such as aloe vera, aeoneums, and the like. are they in the same range as Agave and Cactus, (0-20%) or are they in the next range