Onion (Spring) 'North Holland Blood Red'

Grow in fertile, moisture retentive, but well-drained soil in full sun. Consider liming if the soil is acid, pH below 6.5. Best harvested when young with the bub no more than 1-2.5cm across. See how to grow: salad onions for further advice

Not required

Propagate by seed sown under cover with heat in mid- to late winter, harden off before planting out. Sow outdoors from late winter until mid-spring

May be susceptible to onion fly, leek moth and narcissus eelworm

May be susceptible to onion white rot, onion downy mildew, leek rust and onion neck rot. Bolting, producing flowers, may be a problem