Choose plug plants by size

Mini plugs

These measure 4-6cm from base to tip and are usually available early in the year, from mid-March. They need to be grown on for eight to ten weeks before they’re ready to plant outside.

Standard plugs

Also called medium plugs or simply plugs, they are 6-8cm from base to tip. They are on sale from April onwards and should be ready to go out after six to eight weeks.

Jumbo plugs

Also called garden-ready plugs, these are the largest, at 8-12cm from base to tip. Available in May, they can be planted straight into pots or hanging baskets outdoors once there’s no risk of frost.

Use a pencil to push the rootball up out of the module when transplanting Put mini plugs into modular trays, as they’re too small to go straight into pots