Can we get a mix of different planter box sizes for a varied look?

Absolutely. In fact, I’d argue that mixing different planter box sizes isn’t just possible—it’s the secret to a garden that feels alive, dynamic, and effortlessly curated. Imagine a single row of identical boxes: it’s neat, sure, but a little like a monotone song. Now picture a tall wooden planter standing proud beside a low, wide trough, with a sleek mid-height box in between. Suddenly, the scene breathes. The tall one becomes a statement, the wide one spreads out like a welcoming table, and the mid-height ties them together like a bridge.

The key is to think in layers. Use larger, deeper planters for anchor plants—think small trees, tall grasses, or bushy herbs—and let medium sizes carry the mid-level foliage like lavender or ferns. Then sprinkle in smaller boxes for trailing flowers or succulents that spill over the edges. This creates a natural rhythm that draws the eye up, down, and across.

But here’s the nuance: variety doesn’t mean chaos. Stick to a unifying element—like the same material (cedar, terracotta, or dark metal) or a consistent color palette for the boxes themselves. Let the size differences do the talking. And don’t forget about ground level: placing a few smaller boxes on stands or legs adds vertical intrigue without overwhelming the space. So yes, you can absolutely mix sizes. In fact, I highly recommend it—your plants will thank you for the room to grow, and your outdoor space will finally feel like a true composition, not just a collection.