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Ask a Gardening QuestionGarden Design: Garden Design QuestionsRaised flower bed disaster?

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Raised flower bed disaster?

#1 · 15th September 2025, 2:26 pm

Can our raised flowerbed bed be rescued?! A landscaper has built a raised flower bed for us to plant screening trees in but others have told me it’s just not robust enough for trees. I’m hoping the forum might have suggestions for how to reinforce the flower bed or do I need to accept that the whole thing needs to come down? It’s made of single skin concrete blocks, 13m long, 70cm wide internally and 40cm tall above ground level (another 20cm block below ground level as we’ve raised the garden level up) and no base (it’s built on small foundations on soil). We have 110cm stem Portuguese Laurel trees, 16cm trunk girth. It hasn’t been tanked yet. Any suggestions would be appreciated!