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Silybum marianum
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Description
Spectacular plant with its white veined spiny leaves and large purple flowers. Seeds are used medicinally. Important liver herb. Ht over 1 mtr. Naturalised to UK
Inside germinate at 18C (65F) or sow outdoors just after the last frost; will bloom in about 12 weeks in full sun or part shade. Cover very lightly. Thin to 10cm (4 in) apart when plants are 5cm (2 in) tall. Grow 30-38cm (12-15 in) tall. Approx. 3000 seeds/g.