Mint comes in a huge variety of scents and flavours and most need to be carefully contained to stop them spreading throughout your whole windowbox. Either plant your mint in a bottomless pot or force in a piece of slate to act as a barrier to prevent the roots from roaming too far. Plant in fertile, moisture-retentive compost and feed frequently in summer.
Plant: rooted shoots or pot-grown plants in spring or autumn
Varieties: Spearmint, Epicure Mint, Bowles’ Mint