Feeding your flowering house plants couldn?t be easier with this ?ready to use? drip feeder! Application couldn?t be simpler. Snip off the end of a ?ready to use? dripper and insert the cut end into the compost. Each specially formulated solution will nourish your plants for up to 15 days to keep them looking at their best.Drip Feeders are suitable for use with all house plants in pots up to 20cm diameter. For larger specimens, use an extra dripper per pot.