The Story
Plant Bio
Citrus aurantifolia, the Key lime or Mexican lime, is a thorny shrub or small tree that produces a small, tart, aromatic fruit. It has fragrant white flowers and glossy evergreen leaves.
Valued for its distinctive, acidic fruit used in beverages, desserts, and cooking. It is more sensitive to cold than most other citrus varieties.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Fruit Vegetable
Height
120 inches
Width
120 inches
Light
Full Sun, Partial Sun
Zones
9, 10
Water
Moderate
Humidity
Moderate to high
Lifespan
Many years
Native To
Southeastern Asia
Toxicity
Fruit is edible; leaves and peel are toxic to pets
Planting
How to Grow
- Tuck seeds or cuttings into well-draining soil in spring.
- Water regularly, keeping soil moist but not waterlogged.
- Mist cuttings to maintain humidity and promote rooting.
- Fertilize monthly with citrus-specific fertilizer during growing season.
- Transplant seedlings when they have established strong roots, usually after 6 weeks.
- Prune lightly to shape and remove dead or damaged branches.
Pro Tip
Choose a sunny, sheltered spot to protect from cold winds and frost.
Keep It Thriving
Care Guide
Do
- Water consistently, especially during dry spells π±
- Apply citrus fertilizer monthly during active growth
- Prune to shape and remove dead wood
- Mulch around the base to retain moisture
Don't
- Overwater, leading to root rot β
- Allow soil to dry out completely between waterings β
- Neglect pruning, which can lead to poor air circulation
- Expose young plants to frost
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Harvest | ||||||||||||
| Pest Check | ||||||||||||
| Prune | ||||||||||||
| Winter Prep |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Northern Exposure Lime questions
What zones can Northern Exposure Lime grow in?
Northern Exposure Lime is hardy in USDA Zones 9β10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Northern Exposure Lime deer resistant?
Not reliably. Deer may browse Northern Exposure Lime, especially tender spring growth β plan on repellents or fencing where pressure is high.
When does Northern Exposure Lime bloom?
Northern Exposure Lime typically blooms in year-round in warm climates through late summer. Exact timing shifts a week or two with your zone β Sow's bloom calendar maps it to your garden.
Does Northern Exposure Lime need full sun?
Northern Exposure Lime does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Northern Exposure Lime drought tolerant?
Yes β once established (usually after the first full season), Northern Exposure Lime handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Citrus to compare

Meyer Lemon
Citrus limon 'Meyer'

Key Lime
Citrus aurantiifolia

Moro Blood Orange
Citrus sinensis 'Moro'

Sanguinello Orange
Citrus reticulata 'Sanguinea'

Calamondin
Citrus mitis

Blondie Mandarin
Citrus reticulata 'Blondie'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Northern Exposure Lime with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
