8pcs Window Box Planter, 17 inch x7 inch x6.3 inch Flower Window Boxes, Re
✅ PROS
- Eight planters for roughly the price of two or three single boxes — serious per-unit savings
- Built-in drainage holes prevent root rot without needing to drill your own
- Lightweight plastic construction easy to mount on railings, fences, or window sills
❌ CONS
- At 6.3 inch " deep, root space is limited — skip deep-rooted perennials or large tomatoes
- No mounting hardware included, so plan to source your own screws or brackets
- Thin walls may crack if over-tightened or left in freezing temps with wet soil
The Verdict
Opening Hook
If you’ve priced window boxes lately, you know the sting: $15–$20 each for something that’s basically a plastic rectangle with holes. That’s what makes this 8-pack interesting. At 17 x 7 x 6.3 inches per planter, you’re getting a full season of annuals across eight windows, a fence line, or a balcony railing — for less than the cost of three individual boxes at a big-box store. The 4.7-star average across 235 ratings isn’t an accident; this is a value play that mostly delivers.
What You Actually Get
Eight identical rectangular planters, each measuring 17 inches long, 7 inches wide, and 6.3 inches deep. The product images show a clean, matte-black finish that looks more expensive than the price suggests. Each box has pre-drilled drainage holes in the base — a small but critical detail that saves you the drill-and-crack routine cheaper planters force on you. The plastic is rigid enough to hold wet soil without bowing, though it’s not thick-walled by any means.
Real-World Performance
The 6.3-inch depth is the defining spec here. That’s enough for petunias, marigolds, herbs, lettuce, or trailing vinca — anything with a shallow, fibrous root system. It is not enough for deep taproots. I’ve seen buyers try to cram small tomatoes or full-size peppers into these, and the plants get stunted by mid-summer. Stick to what fits and you’ll be happy.
Drainage works as advertised. Multiple holes in the base let excess water escape cleanly, and the plastic doesn’t retain heat the way dark ceramic does, so roots stay cooler in afternoon sun. One buyer noted, “I bought these for my balcony railing and they fit perfectly — the drainage holes are well-placed and I haven’t lost a single plant to overwatering.” Another mentioned, “Great value for the price. I used them for herbs and they’ve held up through a full season of rain and sun.”
What Buyers Consistently Praise
Three themes dominate the 235 reviews: value, size, and simplicity. The per-unit cost is the headline — buyers repeatedly mention paying less per planter than they would for a single one at a garden center. The 17-inch length fits standard window sills and most railing widths without overhang. And there’s no assembly, no tools, no fuss — fill with soil, plant, and go.
Where It Falls Short
Honest tradeoffs exist. The 6.3-inch depth limits your plant choices, as noted. No mounting hardware is included, which surprised several buyers — expect to buy brackets or screws separately if you’re not setting these on a flat surface. And the plastic, while adequate, is not indestructible. A few reviewers reported cracks after leaving them out through a hard freeze with wet soil. If you live in a zone with brutal winters, empty them before the freeze hits.
Who Should Buy This
- Balcony and apartment gardeners with railing space — these clamp-style boxes fit standard railings and give you a full season of color.
- First-time gardeners who want a cheap, low-stakes way to test whether they’ll actually maintain plants.
- DIY gift-givers — an 8-pack split into individual boxes with a few seed packets makes a thoughtful, practical gift.
Skip this if you’re planting deep-rooted vegetables, need something that survives -20°F winters without care, or want a decorative look that complements a high-end exterior.
FAQ
Q: Can these attach to a wall or railing, or do they just sit flat? A: They sit flat fine, but for mounting you’ll need your own hardware. The boxes have a lip that works with standard planter brackets, but nothing is included.
Q: How much soil does each planter hold? A: Roughly 0.4 cubic feet per box. A standard 1-cubic-foot bag of potting mix will fill about 2.5 planters.
Q: Will these crack in winter? A: If left outdoors with wet soil in freezing temperatures, yes — the plastic can become brittle. Empty and store them, or at least cover them, before hard freezes.
The Verdict
Buy it if you need multiple planters on a budget, want reliable drainage without DIY drilling, or are growing shallow-rooted annuals and herbs.
Skip it if you need deep containers for vegetables, require pre-drilled mounting holes, or expect heavy-duty plastic that shrugs off subzero winters.
At 4.6/5, this is a solid, honest value. Eight functional planters for the price of two or three premium ones — just know the depth limits and winter care going in.
Where to Buy
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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.