Click & Grow Smart flowerbed Busy Lizzy Refill Cartridge Busy Lizzy Cartridge Only - Must Purchase Planter as Part of Starter Kit (Sold Seperately) All the Gardening Work is Done by Your Smart Flowerpot Smart Flowerpot Doses an Exact Amount of Water, Air and Fertilizer for Your Plant's Needs 1 Liter Water Reservoir Means Infrequent Refills (Good for A Month or Two) Replacing Your Plant is EASY - Just Get a NEW Cartridge!