How to fill a bottomless raised garden bed?

[kapsnats]

Hi,

I am planning a beginners DIY project of building a bottomless raised garden bed in the area in the attached pics. The height of the garden bed will be 20cm. I will be making 2 such garden beds. One for flowering plants like roses and hydrangeas. The other raised garden bed mainly for herbs, chillis. I am looking for advice on how best to fill both these bottomless garden beds- one catering to flowering plants and the other for herbs, veggies. Thank you

  

[MitchellMc]

Welcome to the Bunnings Workshop community @kapsnats. It's terrific to have you join us, and many thanks for your question about filling a raised garden bed.

For bottomless raised garden beds, a simple and effective approach is to layer the soil to suit the type of plants you’re growing. For your flowering plants like roses and hydrangeas, start with a base of coarse material like small rocks or broken bricks for drainage, then add a mix of good-quality garden soil with compost on top to about 20cm. For herbs and veggies, a lighter, well-draining mix works best. Combine garden soil with compost and a little coarse sand or perlite to keep roots healthy.

If you want a more detailed guide on filling raised garden beds, including soil layering tips, check out this How to fill a raised garden bed article. It’s a handy resource for getting the soil mix and structure just right for different plant types.

Please let me know if you have any questions.

Mitchell