Windowsill Propagator Self Watering Seed Spa

This windowsill seed spa self watering propagator is designed for starting vegetable, herb and flower seed in a controlled environment. It uses a capillary mat and reservoir tray system to draw water upwards into compost, supporting steady germination and early root development while reducing surface drying and uneven watering.

How the Windowsill Seed Spa Maintains Moisture

The base tray holds water beneath a fitted capillary mat. Moisture is absorbed gradually from below through drainage holes in pots or inserts, helping maintain consistent compost hydration.

A clear shatter resistant cover helps retain warmth while allowing strong light levels during early development. The air vents allow balanced humidify.

Benefits of the Windowsill Seed Spa Self Watering Propagator

• Capillary matting system supports even moisture uptake
• Reservoir tray reduces frequent watering
• Clear cover supports light penetration
• Compact design fits window ledges and greenhouse shelving

Product Specifications

• Colour: Green base with clear cover
• Watering method: Capillary mat with reservoir tray
• Cover material: Shatter resistant plastic
• Available sizes:
  3 Bays: Length 54.5cm Width 21.5cm Height 15cm
  2 Bays: Length 38cm Width 24cm Height 15cm

frequently asked questions

How often should the reservoir be refilled?

Water levels should be checked regularly. Refill when the tray becomes low to maintain continuous moisture supply beneath the mat.

Can standard seed trays sit directly on the capillary mat?

Yes, inserts or small pots with drainage holes can sit directly on the mat to allow moisture absorption from below.

Is the clear cover removable?

The top lifts off fully to allow access for watering, thinning and transplanting.

Can the unit be used without filling the reservoir?

It can be used with traditional top watering if required, although the mat system supports more consistent moisture control.

Where can this propagator be positioned?

It can be placed on a window ledge, greenhouse bench or shelving depending on available space and light conditions.