Prosperplast Green Plastic Watering can 1.5L. A modern, sleek twist to the classic watering can, ideal for watering house plants at home. Perfect for any green-fingered gardener, this 1.5L plastic green watering can is the ideal solution to easily watering your garden. It can be used all year round, which means your plants and seedling are always going to be cared for. Watering can by Prosperplast.