Regular feeding will ensure rhododendrons, azaleas, camellias and other acid-loving plants produce better blooms - guaranteed. Miracle-Gro Azalea, Camellia & Rhododendron Liquid Plant Food is a unique plant tonic that when used regularly will ensure stunning flower displays for all acid-loving plants. Commonly grown acid-loving plants also include heathers, pieris, magnolias and ferns. Miracle-Gro Azalea, Camellia & Rhododendron Liquid Plant Food is easily diluted - one capful to each standard watering can full of water. Simply wet leaves and soak the compost or soil every 14 days during spring and summer for great results.