Limestone reflects intense heat, raising soil temperatures to 120°F or more, which can damage citrus roots. Citrus prefers slightly acidic soil; limestone increases alkalinity, reducing nutrient availability.
Weed barrier fabric restricts water infiltration and gas exchange, and weeds eventually germinate on top anyway. It also makes it harder to monitor soil moisture and apply fertilizers.
Use organic mulch (wood chips, straw) 3-4 inches deep, kept away from the trunk. Spot-treat weeds with herbicide or hand-pull. This conserves moisture, moderates soil temperature, and improves soil health as it decomposes.
Recovering Citrus from Fertilizer Burn: Slow-Release and Foliar Alternatives
Citrus Leaf Curl in March: Likely Leafminer, Not Disease—Organic Management Tips
Citrus Wound Treatment: Copper Sulfate Risks and Proper Bordeaux Mix
Citrus Leafminer Management: Biology, Cultural Control, and Limited Chemical Options
Citrus Tree Leaf Drop After Moving Indoors
Winter Care for Citrus Trees in Georgia
Citrus Trees Outdoors in Winter: They'll Freeze, Try Hardy Varieties
Sour Rootstock Sprouts on Citrus: What to Keep, What to Remove
Limestone Rocks Around Trees: Harmful or Helpful?
Why Roof Shingles Make Poor Weed Barriers Around Trees
Winter Care for Container Citrus Trees Indoors
Citrus Aphids and Ants: Organic Control in Southern Spain
Citrus in McDonough: 'Thomasville' Citrangequat Survives Cold Winters
Geothermal Heating for a Citrus Greenhouse: Cost vs. Benefit
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