SproutSmart
SproutSmart™ Intelligent Garden Sowing

Jericho

Lettuce
Zone 11a Save Garden

Planting Schedule

Add Jericho to your garden to build a schedule and get reminders.
Botanical illustration of Jericho
60d to harvest

Jericho lettuce brings a crisp, cool crunch with a delicate, sweet-green flavor and a tender bite that stays pleasantly snappy. At maturity, heads form with a softly ruffled texture and a fresh, clean finish—ideal for gardeners who want a reliable, garden-fresh centerpiece for everyday salads and bright garnishes. Grow Jericho for a satisfying harvest window around 60 days, when the leaves are at their most luminous and crisp.

Crop Dates

Growing note: Frost-free Zone 11a supports continuous outdoor production.
MilestoneDate
ClimateFrost-Free Climate
Growing ApproachContinuous Production

Crop Details

TraitValue
Days to Maturity60
Sun RequirementsFull SunFull sun
Growth HabitRosette
Support NeededNone
Planting DepthSurface
Germination Temp (°F)70
Min Soil Temp (°F)40
Min Night Temp (°F)32
Harden Off (days)6

Today's Conditions

Outdoor planting for Jericho in Zone 11a typically begins around throughout the growing season. Wait until soil reaches at least 40°F before transplanting Jericho.

Garden Alerts

Frost-free Zone 11a supports continuous outdoor production.

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Frequently Asked Questions

What pest or disease commonly affects Lactuca sativa (Jericho), and how can I treat it at home?
Watch for aphids and slugs/snails on tender lettuce leaves; aphids cluster on new growth and can cause leaf distortion, while slugs leave ragged holes. Rinse aphids off with a strong jet of water, then spot-treat with insecticidal soap if needed. Use copper tape or a beer trap and remove hiding spots/boards at the base to reduce slugs and snails, and water in the morning to lower leaf wetness.
How often should I water Lactuca sativa during its main growth phase to prevent bitter or stressed heads?
During the ~3–6 weeks of active leaf growth (leading up to harvest), keep soil evenly moist—not soggy—so the root zone stays consistently damp. Water deeply about 2–3 times per week depending on heat, aiming for roughly 1 inch per week total, and adjust to more frequent watering during hot spells. If you let the soil dry out and then soak again, lettuce can turn bitter and bolt more readily.
Botanical illustration of Jericho

Jericho lettuce brings a crisp, cool crunch with a delicate, sweet-green flavor and a tender bite that stays pleasantly snappy. At maturity, heads form with a softly ruffled texture and a fresh, clean finish—ideal for gardeners who want a reliable, garden-fresh centerpiece for everyday salads and bright garnishes. Grow Jericho for a satisfying harvest window around 60 days, when the leaves are at their most luminous and crisp.

Today's Conditions

Outdoor planting for Jericho in Zone 11a typically begins around throughout the growing season. Wait until soil reaches at least 40°F before transplanting Jericho.

Garden Alerts

Frost-free Zone 11a supports continuous outdoor production.

Sowing Tips

Soil Temperature

Direct sow or transplant when soil at planting depth holds 40°F for reliable germination and early growth.

Expert Note

For Jericho (heat-tolerant romaine), start transplants in cooler weather and set out right at/after the last frost to avoid bolting during early heat spikes.