Dyna Gro Orchid Pro 7-8-6 is a well-balanced, professional formulation containing all essential macro and micronutrients for use on all types of orchids. Orchid Pro is suitable for all year round application. It provides the right balance of nutrients for healthy growth and flowering. Urea free and won't burn your plants. Orchid Pro may be used for orchid growth in both indoor and outdoor settings as well as with direct or indirect lighting. Orchid Pro may be used with Pro TeKt to quickly acclimate the plant to a new medium or environment. When applied, the nutrients in Orchid Pro are immediately available, giving your plants the ability to access the nutrients they need in critical times. Contains special pH buffers to help maintain a desirable pH. Ample levels of Calcium. Orchid Pro is low in soluble salts which virtually eliminates excessive salt build-up. Excessive salt may burn roots and leaves.