If your sloping backyard feels featureless, consider adding a curved retaining wall with a garden bed overflowing with flowers. Learn how to DIY your wall here.

Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep enough to completely bury at least one full course, including space for 6 to 8 ...

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When you're looking for cinder block garden ideas, the sky's just about the limit for this versatile building material. Use them to create stylish walls, furniture, outdoor bars, planters, raised ...