Self-Watering Window Box Planter

A few years ago I met the people behind the Lechuza company at the Independent Garden Center Show. Lechuza makes self-water (sub irrigation planters) that are really stylish and modern. These containers work the same way as the Grow Box from Clean Air Gardening and the Garden Patch Grow Box, but are a lot more fashion-forward. This year, Lechuza sent me two of their self-watering planters for free to try in my container garden. So far I’ve tested Cubico Cottage window box planter in my porch garden.

self-watering window box planter subirrigation planter

The Cubico Cottage window box planter is 19 inches long, 7 inches deep and 8 inches tall. This is one of the nicest-looking self-watering window box planters I have come across. The plastic looks like woven wicker and seems to be standing up to the sun pretty well and not fading. It is small enough that over the winter I used it indoors in a windowsill to hold some houseplants, when spring came I brought the container outside and replanted it with annuals.

self-watering planter insert

There isn’t much assembly required for this self-watering container. There’s a handled insert that allows you to pull out the liner for easy access for planting and switching out spent plantings. The planter comes with hardware that you can attach to the raining of a deck or porch. When you pull out the insert you can leave the water reservoir behind and just slip the liner back in place.

self-watering garden container water level

The water gauge shows you how much water there is in the reservoir of this self-watering container to avoid drowning the roots of your plants .

drainage hole self-watering container

The underside of Lechuza’s window box planter has a plug that you can remove if too much water collects in the reservoir during rains. I find this feature extremely helpful because it allows you to use the window box planter inside and outside the garden. Recently the weather forecast called for rain so I went out to the back porch and removed the plug overnight so that water wouldn’t collect and replaced it in the morning.

The Plants

I usually try to avoid over planting containers because too many plants and your container dries out as the various plants compete for moisture in the soil. The Cubico Cottage planter pictured above is planted with 14 annuals and I haven’t had a problem with the window box drying out. These annuals were also free plants to trial and write about.

Easy Wave Neon Rose Petunia, Ball Hort

There’s five Easy Wave® Neon Rose petunias from the Ball Horticultural Company.


Four Serena® Blue Angelonias from the Ball Horticultural Company.

Shock Wave Coral Crush Petunia Ball Hort

Three Shock Wave® Coral Crush petunia from the Ball Horticultural Company. The color of these is a lot nicer in person, I’m just not very good at photographing reds.

Calibrachoa Cherry Star Proven Winners

One Superbells® Cherry Star Calibrachoa  hybrid from Proven Winners.

Calibrachoa Grape Punch Proven Winners

One Superbells® Grape Punch Calibrachoa  hybrid from Proven Winners.

The Cubico Cottage self-watering window box planter from Lechuza is a great little planter that hasn’t once dried out in the extreme heat of full sun exposure. It is an especially attractive choice if you’re looking for sub-irrigation planters that go beyond the orange plastic that seems to dominate this garden niche. I love my Grow Boxes, but after using this self-watering container I wonder why they can’t all look like this. Also, all of these sub-irrigation planters don’t come with liners that make switching out the plants easier. The Lechuza company makes self-watering planters in a variety of sizes, shapes, colors and textures. You’re sure to find something that works with your garden’s style. My only problem with the Cubico Cottage window box planter planter is that I only have one of them.

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