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[Lactuca sativa var. longifolia] Mortadella di Primavera romaine lettuce seeds, low upright head, tender crisp heart.
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A "Romanina" type variety from the Marche-Abruzzo tradition, Mortadella di Primavera forms a low, upright, self-wrapping head with a tender, crisp heart particularly prized in home gardens.
It belongs to the species Lactuca sativa var. longifolia, family Asteraceae. It is intermediate between the Romaine and Butterhead types, with dark green outer leaves and a light green heart with white ribs.
Sow from August to February for field cultivation, transplanting between March and April for a staggered harvest between May and June.
It has fair bolt resistance, especially suited to spring cultivation; it adapts well to different soil types, preferring good drainage.
The medium-sized, compact head is harvested once it reaches the right firmness; the tender, crisp heart is the most prized part of this variety.
Like other romaine lettuces it can be affected by downy mildew and grey mould in humid conditions; aphids and slugs are the most common pests to monitor.
Well known on the market and prized for its excellent flavour and texture, it is ideal for home gardens and fresh spring salads.
Like other romaine lettuces it is rich in beta-carotene and vitamin A, as well as fibre, potassium and vitamin C, with a very low calorie content.
Per 100 grams, Mortadella di Primavera romaine lettuce provides about 17 kcal, 1.4 g protein, 2.4 g carbohydrates, 0.2 g fat and 1.8 g fibre. Good source of vitamin A and folate.