Lemon Tree

Citrus limon · Tree/Shrub

A fragrant evergreen citrus that flowers and fruits on and off through the year. Dwarf types grow happily in containers that can move indoors for winter. It needs lots of sun, regular feeding and protection from frost.

Care at a glance

Light

Full sun, 8+ hours; brightest window indoors

Water

Deeply when the top 2–3 in of soil is dry

Soil

Fast-draining citrus mix, pH 5.5–6.5

Temperature

Best 70–85 °F; protect below 32 °F

Spacing

12–25 ft apart in the ground (by variety)

Container

Pot 10–20 gallons with drainage

Harvest

Fruit 6–9 months after flowering (estimated)

Lifespan

50+ years

When?

Plant or repot in spring after frost. Container trees go outdoors when nights stay above 50 °F and come back in before the first frost.

Step by step

1. Give it the sunniest spot available, outside in summer if possible.
2. Water deeply, then let the top 2–3 in dry; never leave roots soggy.
3. Feed with citrus fertilizer every 4–6 weeks from spring to fall.
4. Indoors, raise humidity and keep away from heaters.
5. Help flowers set fruit indoors by brushing pollen between blooms.
6. Prune lightly after harvest to remove crossing branches and suckers below the graft.
7. Pick lemons when fully colored and slightly soft to the touch.

Common problems

Pets

Citrus trees are listed as toxic to cats and dogs; leaves, peel and oils can cause vomiting and skin irritation. If in doubt, ask your vet.

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