Complete food and drink for your plants and hanging baskets a true garden essential raingel amp feed contains an especially formulated high water absorption crystal which locks in water and swells up to a gel in your hanging baskets tubs and pots a couple of teaspoonsful per hanging basket holds a litre of water for your plants so they do not dry out in summer meaning less water less time watering and better results as all that water is locked in to the root system where it can be u