Step by step
Your guide to growing a vertical onion garden
1 Cut off the top of your plastic bo le and evenly snip out some holes for the sets.
2 Fill your plastic bo le with compost so that it’s just level with the bo om holes.
3 Place one onion by each hole so they sit easily and firmly on top of the compost.
4 Fill compost up to each set of holes, add a set and repeat until you reach the top. Water well.