Fennel PERFEKTION 150 seeds £1.80 Quantity: at £1.80 each Add To Basket Well formed white bulbs, bolt resistant. For early and autumn harvest. Sowing instructions: Sow under glass from February and plant out in tunnel or under fleece. For late harvest sow in situ from mid June until mid July. Growing instructions: Planting distance 40x20 cm. Average contents: 150 seeds.