Lactuca sativa

Asteraceae

Lettuce

Biennial edible herb grown as an annual. Leaves are sessile, varying from ovate to broadly linear, and entire to pinnatifid, depending upon the variety. The leaves form a basal rosette prior to flowering. Flowers are pale yellow.

Uses

Harvest after 4-6 weeks. Used in salads.

Culture

Most varieties prefer temperatures between 12-20 degrees C and protection from frosts and extreme temperatures. Protect the root zone from overheating. Grow in fertile soil. Nitrogen fertiliser and liquid fertilisers will encourage growth. Prefers a soil pH of 6.0-7.0 Seeds are best raised in a sandy mix prior to planting out to avoid damping off. Avoid watering the leaves on hot days. http://osu.orst.edu/Dept/NWREC/lettuce.html

Propagation

Seed

Cultivars

No information available at this time...

Plant Health

No information available at this time...

More info

'Home Vegetable Growing' and 'Commercial Vegetable Production' courses through Australian Correspondence Schools, see www.acs.edu.au/hort. 'Commercial Hydroponics' on CDROM from Australian Correspondence Schools, see www.acs.edu.au/shop

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