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[Lactuca sativa var. crispa] Green barba dei frati lettuce seeds, long narrow toothed leaves, excellent bolt resistance.
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Also known as "canary tongue" or "radichetta", Green Barba dei Frati lettuce is a batavia-type variety grown both as a head and cut-and-come-again lettuce, with long, narrow, toothed leaves in intense green.
It belongs to the species Lactuca sativa var. crispa, family Asteraceae. It forms a tall, open, medium-sized head, with elongated, lance-shaped, toothed leaves showing a light, crisp rib.
Sow almost all year round, from February to December, spacing 30 cm between rows and 25 cm within the row, for a harvest running from May to December.
It prefers medium to loose soils, rich in humus, cool and well-drained; suited to spring, summer and autumn production thanks to its excellent bolt resistance.
As a baby-leaf lettuce, it regrows very quickly after cutting, allowing repeated harvests; the growing cycle ranges from about 30 days in spring to 70 days in autumn.
It can be affected by downy mildew and grey mould in overly humid conditions; aphids and slugs are the most common pests to monitor during the growing cycle.
Excellent quality, widely used in salad mixes; thanks to its low calorie content it is also suitable for diabetic diets, and it grows well alongside cauliflower.
It contains very few calories and is very rich in mineral salts, as well as fibre and vitamins A, B9, C and K, particularly suited to a light, balanced diet.
Per 100 grams, Green Barba dei Frati lettuce provides about 15 kcal, 1.3 g protein, 2.1 g carbohydrates, 0.2 g fat and 1.4 g fibre. Good source of vitamin A and potassium.