Fruits
Citrus × aurantiifolia
Key lime
Also known as: Mexican lime
A small-fruited, aromatic lime used in drinks, desserts and savory cooking. Its evergreen growth and white flowers suit a sunny patio container in warm weather.
At a glance
- Sun
- Full sun or very bright light
- Water
- Moderate; well-drained soil
- Hardiness
- Frost tender
Sizes & prices
- 6"Call for price
- 8"$41.99
Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.
Ask about this plantSelect a section to expand.
Fruit & harvest
- Pollination
- Indoors, gently shake open flowers to transfer pollen where insects are absent. Fruit-set requirements vary by variety.
Growing & care
- Care & pruning
- Bring indoors before frost and provide bright light. Water thoroughly, allowing the upper mix to begin drying between waterings.
- Size & rootstock
- Mature size depends on the variety, rootstock and container. Choose stock suited to the space available for indoor winter care.
- Harvest
- Let fruit ripen on the plant; it does not ripen further after picking. Taste is a better ripeness guide than rind color alone.
Sources & photo credits
University of Florida IFAS Extension
University of Minnesota Extension
University of California Agriculture and Natural Resources
Photo: Jeevan Jose (image resized for display) · CC BY-SA 4.0
Reviewed October 1, 2026. Growing conditions vary by location.