Best Planter Basket Liners for Window Boxes (2026)
We selected liners by matching listed dimensions and shape to common window-box sizes, evaluating material (coco/coir or fabric), pack size, and construction value
The Verdict
- Best Overall: Riare 2 Pack 20in Coco Liners for Hanging Baskets — Best for standard 20-inch baskets: two 20-inch coco liners that balance breathability and straightforward fit
- Best Value: 4 pcs 18 inch coco liners for planters half round — Best for multiple small half-round boxes: four 18-inch coco liners packaged for repeat planting and replacement
This roundup covers planter basket liners designed specifically for window boxes and half-round hanging planters, with selections prioritized for fit, durability, and value. Picks were chosen by comparing liner size compatibility, material (coco/coir), pack count, and construction to match common window-box dimensions
Top Picks
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1
Best Overall Riare 2 Pack 20in Coco Liners for Hanging Baskets
Best for standard 20-inch baskets: two 20-inch coco liners that balance breathability and straightforward fit
Two 20-inch round coco coir liners for hanging baskets and planters. Breathable, water-retentive material with a natural look; customers note good quality and a perfect fit for baskets
- 2 pieces included
- 20-inch diameter liner
- natural coco coir material
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2
Best Value 4 pcs 18 inch coco liners for planters half round
Best for multiple small half-round boxes: four 18-inch coco liners packaged for repeat planting and replacement
Half circle coconut liner set, 18
- 100% natural, renewable resources
- half circle 18" liner
- moisture retention with ventilation
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3
22 inch coconut planter liners, half round, 2-pack
Best for larger half-round planters: two 22-inch coconut liners sized for deeper window boxes with sturdy coverage
Two 22-inch half-round coconut liners for planters. 100% natural, renewable coconut fibers improve moisture retention with air flow. Some customers find the size and fit mixed
- half-round design fits troughs
- renewable natural material
- good drainage and airflow