Question: is epsom salt good for desert roses?
Answer: The recommendation for applying Epsom salt to existing rose bushes is to either mix 1/2 cup of Epsom salts into the soil around the rose bush and water well or dissolve 1/2 cup of the salts in water and use to water the soil around rose bush. ... A word of caution: Epsom salts sprayed on leaves can cause leaf scorch.