How to make a gutter garden

How to make a gutter garden

6. A three tier gutter garden

Alice Whitehead from Garden Organic shares how to make the most of small spaces with a practical guide to making a grow your own gutter garden.

Six simple steps to making a gutter garden

If you have a small garden, you know that every inch counts when it comes to growing your own. So maybe it’s time to grow up! A gutter garden is an affordable way to grow off the ground and utilise your house or shed wall. It’s the ideal spot for shallow-rooted veg at head height – away from pests, but perfect for picking – and flowers for pollinators.

For this project, we recommend:

  • 2 half round gutter pipes (112mm x 112mm)
  • 6 gutter external stops
  • 6 gutter fascia brackets
  • Peat-free compost mixed with well-rotted compost
  • Grit
Putting in brackets

1. Screw in the brackets

Find a suitable fence or wall to attach your fascia brackets. Remember that the guttering will be heavier once it’s filled with plants and (wet) soil, so ensure the wall is load bearing.

Saw the guttering to length

2. Saw the guttering to length

Reusing old guttering is fantastic way to recycle but choose larger width guttering as this will give more depth and space for plants. Saw the guttering to length.

Drill holes in the guttering

3. Drill holes in the guttering

Drill drainage holes into the guttering at even spacings. This ensures your gutter planter is free draining and the plants don’t get waterlogged.

Put brackets up on the wall

4. Put brackets up on the wall

Clip your guttering in place and add your external stops so the compost doesn’t fall out when you water. Fill with peat-free compost, mixed with a little grit and well-rotted homemade compost. 

Planting

5. Put in the plants

Lay the plug plants on their sides, almost horizontal, as if you were planting up a hanging basket and cover with compost. Plant them further apart than normal so they have lots of growing room.

Three tier gutter garden

6. A three tier gutter garden

In early autumn, you could sow cut-and-come-again salads, oriental greens, radish and parsley or plant flowers such as violas or erigeron. In spring, you can add small herbs, lettuces or strawberries. Alpine strawberries have smaller, less weighty fruit.

​​​​​Top tips

Feed - Remember your gutter garden will rely on you for nutrients, so expect to feed it every two weeks with a homemade comfrey feed during the growing season.

Water well - Keep an eye on moisture levels and water well as your gutter garden can dry out quickly. If you put up several shelves of guttering, they can help water each other. You could even place them over a water butt!

Off cuts - Most guttering comes in 2m lengths so if you have leftovers use them as seed trays in spring. If you sow into these, you can transfer the resulting seedlings straight into the soil. Dig a trench the same size as your gutter and just slip the seedlings out into the soil. It’s also a great way to sow quick crops such as salads and pea shoots indoors on the windowsill.