A hardy veggie bets suited to cooler climates, brussel sprouts grow best over winter.
They appear as a long erect stalk with multiple small heads (or sprouts) at the leaf axils - each head like a mini tightly packed cabbage.
Plant in mid summer in trays and plant out the seedlings by late summer - light frosts are actually beneficial and improve the cropping and taste.
Best to harvest when they are young and tender - as they tend towards bitterness if left too long.