Scientific Name: Lactuca sativa
Common Name: lettuce
Family Name: Asteraceae
Origin: Europe
Hardiness Zone: Zone 2: (-46 to -40 °C)
Plant Type: Annual, Weed (horticultural)
Mature Size: 0.7 - 1.3m x 0.3 - 0.6m (height x width)
Habit: Upright
Form: Oval - vertical
Texture: Coarse
Landscape Uses: Urban agriculture
Exposure: Full sun
Soil or Media: Rocky or gravelly or dry
Leaves: Simple, Basal, Soft flexible, Pinnate venation, Glabrous, Oblong, Orbicular, Spatulate, Dentate, Entire, Undulate (wavy)
Flowers: Head (capitulum), Yellow, Aug-Sep
Fruit: Cypsela (achene + calyx), Brown, Silver, Sep-Oct
Key ID Features:
Leaves colorful, mostly green reddish or rarely variegated, yellow, gold or bluish.