Miracle Gro Nourish & Protect for Rose, Shrub & Ornamentals Eco Refill is a dual benefit, pesticide-free sprayer combining the feeding action of Miracle-Gro Plant Food with the unique addition of natural castor oil, creating a protective barrier against garden pests and diseases. It is used as a refill for the 2 in 1 Nourish and Protect Spray. The bottle can be reused by filling with water and putting the Eco Refill in. Use from early spring to late summer, applying every 2 weeks on the leaves. Spray in calm conditions, avoiding bright sunlight, drought, and frost. It is recommended to use gloves when gardening and to store the product out of reach for children.