Fact Sheets And Publications
- Health & Well-being
-
Agricultural Programs
- Agribusiness
- Animal Science
- Beginning Farmer Program
- Commercial Crops
- Commericial Horticulture
- Delaware Soil Testing Program
- Disease Management
- Farm Vitality and Health Project
- Irrigation
- Nutrient Management
-
Insect Pest Management
- Insect Trapping Program
- IPM Hot Topics
- Commercial Field Crop Insect Management
- Commercial Field Crop Disease Management
- Commercial Fruit & Vegetable Crop Pest Management
- EIPM Implementation Projects
- Pollinators
- Research and Extension Demonstration Results
- Brown Marmorated Stink Bug (BMSB) Management, Research, and Resources
- Publications
- Pesticide Safety Education Program
- UD Plant Diagnostic Clinic
- Variety Trials
- Weed Science
- Certified Crop Advisor Program
- 4-H
-
Horticulture
- Climate Variability and Change
- Delaware Soil Testing Program
- Forestry
- Lawn and Garden
- Master Gardeners
- Master Naturalist Program
-
Nutrient Management
- Nutrient Management Certification
- Continuing Education for Nutrient Management
- Nutrient Management Planning Resources
- Commercial Nutrient Handler Resources
- Poultry Litter and Manure Management
- Turf Management
- Agriculture Notebook
- Horticulture Handbook
- Agriculture & Horticulture Handbooks
- Crop Production
- Soil Fertility
- Delaware Climate Change Coordination Initiative (DECCCI)
- Salt Impacted Agricultural Lands
Leaf lettuce
October 2024 | Written by: New Castle County Master Gardeners Rick Judd and Gail Hermenaus
General information
- Scientific Name: Lactuca sativa
- Family: Asteraceae
- Cool season
- Planting Window:
- Spring: mid-March to late April
- Fall: early August to mid-September
- pH = 6.0-7.0
- Planting Depth: 1/8-1/4 inch, direct sow in soil
- MPD: 5 inches (in both directions)
- Easy to grow from seed!
Pests and diseases
- Slugs (beer saloon, diatomaceaous earth)
- Rabbits - removable rabbit wire cages
- Cutworms - toothpicks around trunk
Successful cultivars
- Cultivars:
- Black Seeded Simpson (45 days)
- Red Salad Bowl (50 days)
- Buttercrunch (65 days)
- Little Gem (45 days) - compact Romaine type
- Parris Island Romaine (55 days)
- Giant Caesar Romaine (70 days)
- Harvest any time up to maturity (mature at 8-12 in.)
- Cut two inches above soil, recut repeatedly
- You can eat the thinnings!
This publication was created by Master Gardener Rick Judd and designed by Extension Scholar Taylor Trent. Photos courtesy of Rick Judd.
UD Cooperative Extension
This institution is an equal opportunity provider.
In accordance with Federal law and U.S. Department of Agriculture policy, Cooperative Extension is prohibited from discriminating on the basis of race, color, national origin, sex, age, or disability.
The University of Delaware is an Equal Opportunity Institution and Provider. Visit UD’s Office of Equity & Inclusion to learn more.
Additional Links
531 South College Avenue Newark, DE 19716 (302) 831-2501