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Lettuce, Romaine Lettuce
Lactuca sativa 'Helvius'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Lactuca (lak-TOO-kuh) (Info)
Species: sativa (sa-TEE-vuh) (Info)
Cultivar: Helvius
» View all varieties of Lettuce

Category:

Vegetables

Height:

6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

Spacing:

6-9 in. (15-22 cm)

9-12 in. (22-30 cm)

Sun Exposure:

Full Sun

Days to Maturity:

Early (55-68 days)

Foliage:

Grown for foliage

Seed Type:

American hybrid

French hybrid

Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Propagation Methods:

Direct sow as soon as the ground can be worked

From seed; sow indoors before last frost

Seed Collecting:

Unknown - Tell us

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Nov 29, 2011, Farmerdill from Augusta, GA (Zone 8a) wrote:

Heavy dense hearts, heat and tipburn resistant. Tolerant to Downy Mildew.