Sandy soil is both poor in nutrients and cannot retain moisture. Some vegetables and heath plants grow well in it, though. Amending it takes time.
How to Permanently Improve Your Sandy Soil
How to Prep Soil for a Vegetable Garden
Improving Sandy Soil: Amending It Right - Epic Gardening
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Improving Sandy Soil: Amending It Right - Epic Gardening
Soil Food: The Best Dirt Cheap Organic Soil Amendments
10 Best Vegetables for Sandy Soils — Empress of Dirt
Soil for the Garden – UrbanMali
How to Amend Sandy Soil - Gardening Channel
How to Fill Raised Garden Beds with Organic Soil ~ Homestead and Chill
7 Tips for Gardening in Sandy Soil - Gardening
Soil Amendments Arizona SummerWinds Nursery