Lisbon

Lemon

Zone 6b Save Garden

🌱 180d to harvest Shrub

Sun-bright and unmistakably fragrant, Lisbon Lemon brings a luminous, thin-skinned zest that bursts with classic lemon snap and a…

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Oct 22nd
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	180
Sun Requirements	Full Sun
Growth Habit	Shrub
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	28
Harden Off (days)	Not Required

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Frequently Asked Questions

What’s a common disease or pest problem on Citrus limon (Lisbon lemon), and how do I treat it at home?

Watch for citrus leaf miner and aphids, which leave distorted new growth and sticky honeydew; infestations are common during flushes. Spray affected leaves with insecticidal soap, covering undersides, and repeat every 5–7 days until activity stops. If you see sooty mold, address the aphids first, and improve airflow around the canopy.

How often should I water Citrus limon during the main growing season, and what soil moisture level should I maintain?

During active growth, water deeply when the top 1–2 in (2–5 cm) of soil has dried, then let excess drain—aim for evenly moist (not wet) soil. In-ground trees often need about 1–2 in (2.5–5 cm) of water per week in warm months, adjusted for rainfall and wind exposure. In containers, check moisture more frequently—water when the top layer dries, because citrus in pots dries out faster.

How do I tell when a Lisbon lemon (Citrus limon) is ready to harvest?

Harvest when fruits are fully yellow and reach their mature size, usually around 180 days from planting/growth stage to maturity. The skin should feel firm and the fruit should give slightly under gentle pressure rather than feel rock-hard. Taste-test one—if it’s fully tart-balanced for your preference and the juice content is high, it’s ready to pick.

Sun-bright and unmistakably fragrant, Lisbon Lemon brings a luminous, thin-skinned zest that bursts with classic lemon snap and a clean, juicy tang. At maturity, the fruit hangs in a graceful, slightly elongated silhouette with a tender, high-moisture interior and a fragrant peel that feels almost satin-smooth to the touch. Ideal for brightening fresh drinks, vivid sauces, and preserves—Lisbon is the market-class lemon home gardeners love for its reliable, aromatic character.

Sowing Tips

Transplant Conditions

Wait until soil reaches 60°F and nights stay above 28°F before moving outdoors.

Expert Note

For Lisbon lemons in the continental US, plant in a large container or well-draining site and prioritize winter protection (wraps/cloches) because cold tolerance still depends on root survival.