Haws Small Extra Fine Spray Plastic Rose, F1/10 Round Haws Small Extra Fine Spray Plastic Rose. F1/10 Round Brass Face|The 'extra fine' holes provided by this rose give a particularly gentle spray making it especially suitable for spraying individual seedtrays, pots, fine seedlings in the early stages of growth and for foliage. When spraying, hold the watering can at a steep angle to the ground or bench so that there is plenty of water pressure at the rose face. Gradually increase this angle as the can empties in order to maintain the spray