Photo by Melody

PlantFiles: Tall Blue Lettuce
Lactuca tatarica

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Lactuca (lak-TOO-kuh) (Info)
Species: tatarica (tat-TAR-ee-ka) (Info)

Category:
Biennials
Perennials

Height:
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
USDA Zone 2b: to -42.7 C (-45 F)
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun

Danger:
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Light Blue
Blue-Violet

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous
Blue-Green
Smooth-Textured

Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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to view:

By kennedyh
Thumbnail #1 of Lactuca tatarica by kennedyh

By kennedyh
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By KashtanGeorge
Thumbnail #3 of Lactuca tatarica by KashtanGeorge

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral KashtanGeorge On Dec 6, 2008, KashtanGeorge from Sochi
Russia wrote:

Quite common in Russia with the tendency towards the south. Grows as weed on the sown areas, waste plots of land, sides of the roads, meadows.

Regional...

This plant has been said to grow in the following regions:

,
Benton, Kentucky



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