A practical checklist for buying a citrus tree: how to inspect graft unions, roots, leaves, trunks and pots at the nursery so you bring home a tree that settles in and thrives.

Citrus trees shed fruit for good reasons and bad. Learn to tell natural thinning from stress drop, then fix water, feeding and weather problems before next season.

Pot size, a free-draining mix, soak-and-dry watering, steady feeding and winter shelter are what container citrus need. Here is how to get each of them right from the first season.

Yellow citrus leaves can mean waterlogged roots, a missing nutrient, sap-sucking pests or cold damage. Use this eight-point checklist to find the cause before you feed.