Self Watering Seed Spa - 2 bays

This windowsill seed spa self watering propagator is designed for starting vegetable, herb and flo...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: Tray: H:5 x W:18.5 x L:54.5cmEach Cell: H:12cm x W:18 x L:18.6cm2 Bays: Tray: H:7 x W:21 x L:38cmEach Cell: H:12cm x W:18 x L:18.6cm 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. Supports Even Germination – Capillary mat and reservoir tray draw water up into compost from below, helping maintain consistent moisture for reliable seed startin Reduces Watering Effort – Integrated water reservoir limits surface drying and uneven hydration, reducing the need for frequent top watering during early growth Creates a Controlled Growing Environment – Clear shatter resistant cover helps retain warmth while allowing strong light levels for seed germination Balances Humidity Levels – Adjustable air vents allow airflow control to reduce excess condensation and support healthy early plant development Fits Windowsills and Greenhouses – Compact design suits window ledges, greenhouse benches and shelving; available in 3 bay (tray 54.5 x 18.5 x 5cm) and 2 bay (tray 38 x 21 x 7cm) options
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