How to Plant Key Lime Trees

About Key Lime Trees

Key limes are cold-sensitive. Plant outdoors only in zone 9+. In cooler areas, grow in containers for indoor winter protection. Planting follows standard citrus steps.

Planting Steps

Step 1: Site Selection

Full sun. South side of house buffers north winds. Allow 12 ft clearance all sides.

Step 2: Clear the Area

Remove grass/weeds. Maintain weed-free base for proper moisture/fertilizer absorption.

Step 3: Soil Prep

Plant directly in native soil—no amendment. Sandy/rocky soils ideal. Clay causes root rot.

Step 4: Planting Depth

Hole slightly wider than container, same depth. Plant slightly higher than in container—never deeper (causes stress/death).

Step 5: Backfill and Water

Fill around root ball, water thoroughly, tamp to remove air pockets.

Step 6: Watering Schedule

• Weeks 1–3: 3–4× weekly
• Months 2–6: weekly
• Established: every 10–14 days

Step 7: Fertilize

Only after new growth appears. High-quality citrus fertilizer 4× yearly.