PlantBest Self-Watering Greenhouse System - 35 Pellets - 35mm

Self-Watering Coir Pellet Greenhouse System, 35-Pellet, 35mm

Forgetting to water a seed tray for even a day or two can set germination back, but checking in daily isn't always realistic for busy growers. PlantBest's Self-Watering Greenhouse System solves that with a built-in reservoir and capillary matting that wick water up to each of 35 pellets automatically.

One full reservoir supplies water for up to a week under typical conditions, giving growers a buffer against a missed watering day without risking either drought or waterlogging.

Key Features & Benefits

• Automatic water reservoir — supplies water to all 35 pellets for up to one week without refilling.
• Capillary matting — draws water from the reservoir and distributes it evenly across every pellet.
• 35mm coconut coir pellets — 35 pellets included, expand with water into individual growing cells.
• Humidity dome included — traps warmth and moisture for fast, reliable germination.

Who Should Use This

This fits busy home gardeners and hobbyist growers who can't check a seed tray daily and want a system that prevents both under- and over-watering on its own.

About PlantBest

PlantBest built its Self-Watering Greenhouse System around the same 35mm coconut coir pellets used across its other kits, adding a reservoir and capillary matting for growers who need the watering handled automatically. The company, founded by Thijs Millenaar, has focused on coconut coir growing media for more than 20 years.

Frequently Asked Questions

How does the self-watering reservoir work

Fill the reservoir with water, and capillary matting draws it up and distributes it evenly to all 35 pellets as they need it, rather than requiring you to water each cell directly. One full reservoir supplies water for up to a week under typical conditions.

When should I refill the reservoir

Check the reservoir roughly once a week and refill it before it runs dry, since actual duration depends on room temperature and how much the humidity dome is retaining moisture. Running the reservoir dry defeats the purpose of the self-watering design.

Does this system prevent overwatering as well as underwatering

Yes, capillary action only draws up as much water as the pellets need. That avoids the waterlogging that can happen with manual overwatering, while still preventing the pellets from drying out between checks.

Can I use this system without checking on it daily

That's the point of the design: the reservoir and capillary matting handle daily watering automatically. You only need to check in around once a week to refill the reservoir.