I'd like to make a 2 layerd (tiered) flowerbed; the existing surface is flat, and I'd like to use stone as the border for both tiers without actually using cement and making walls. Is there a way to have reinforcement (perhaps 2x4s) under the soil so they're not exposed and only the rock borders (and plants) can be seen? I don't want this to wash out during the first rain.
|Sounds like you're really thinking this project through. You can use regular concrete blocks and stack them up to the desired height, then drive rebar through the holes in the blocks and down into the ground to reinforce the blocks and keep them together even with the weight of the soil pushing against the blocks. Or, you can use the interlocking landscape blocks that actually hold one another together. I'd take the measurements and a simple sketch into your local Home Depot and ask the staff to suggest the best materials for your project. Enjoy your garden!|