This large Self Watering Tray ensures plants are watered automatically for up to 14 days! Doesn’t overwater and is the perfect plantsitter and works great as a holiday watering system. The unit features a base reservoir tray which contains a ‘stilted’ inner support platform which is covered in capillary matting. The base tray provides a reservoir of over 2 gallons. By ensuring the exposed compost at the bottom comes in contact with the capillary matting the plants will water themselves!