Oliz Window Box Planter 17" Rectangle 8-Pack — Self-Watering Window Planters with Reservoirs & Trays (Blue)

Oliz Window Box Planter 8-pack are 17-inch self-watering rectangular flower pots with built-in reservoirs, drainage holes, absorbent wicks, and matching trays for easy windowsill, balcony, or patio planting.

These lightweight but heavy-duty planters combine a shallow, space-saving footprint with a hidden water reservoir that feeds plants via absorbent cotton ropes. Each pot measures approximately 17 x 7 x 6 inches and holds about 1 liter of reserve water, making this set suitable for herbs, flowers, succulents, leafy greens, and decorative foliage both indoors and outdoors. Built from thickened PP plastic, the boxes resist weathering and can withstand extended sun exposure and regular use.

How does the self-watering system work and why does it help?

The Oliz boxes use an internal reservoir connected to the planting chamber by an absorbent cotton rope that wicks moisture into the soil as it dries. This capillary action reduces daily watering needs while maintaining steady root-zone moisture and lowering the risk of surface overwatering.

• Approximately 1L water reservoir per pot for up to around 10 days of supply under typical conditions.
• Absorbent cotton rope transfers moisture directly to the root zone.
• Drainage and air holes prevent waterlogging and promote healthy root oxygenation.

Can these planters be used outdoors on a balcony or exposed windowsill?

Yes — the Oliz planters are built from durable, thickened polypropylene that tolerates sun, wind, and light rain. Their sturdy construction supports heavy plantings and repeated outdoor use without cracking or fading quickly.

• Thickened PP material rated to bear heavy loads for stability.
• Wear- and UV-resistant finish meant for long-term outdoor exposure.
• Integrated trays catch excess runoff and keep surfaces clean.

What kinds of plants perform best in these 17" rectangular pots?

The shallow, elongated shape is ideal for compact or linear plantings: culinary herbs, small salad greens, trailing flowers, succulents, and decorative grasses. Depth and reservoir design favor species with moderate root systems rather than deep-rooted trees.

• Ideal: basil, parsley, thyme, lettuce, marigolds, petunias, sedum.
• Works for small succulents and cacti with careful drainage management.
• Not recommended for large shrubs or plants needing deep soil volumes.

How do I maintain the planters for best results?

Regular checks of the reservoir, occasional flushing, and routine cleaning keep the system performing. Empty trays when they collect excess water, refill reservoirs as needed, and replace absorbent ropes if they degrade over time.

• Top up reservoir roughly every week to ten days, depending on conditions.
• Clean trays and containers between plantings to prevent salt build-up.
• Inspect and replace cotton wicks if they become compacted or moldy.

Who is this for? The Oliz Window Box Planter set is aimed at gardeners who want a tidy, low-maintenance container solution for tight spaces: apartment dwellers, balcony growers, kitchen herb keepers, and novice gardeners seeking forgiving, self-watering containers. It also suits seasoned growers who prefer modular, durable planters that withstand outdoor conditions while keeping watering chores minimal.