Green Canary is designed specifically to be safe for pets, children, and highly sensitive or allergic end users. Green Canary is developed and manufactured in California, USA under the strictest environmental, quality standards, and production processes. The broad spectrum, water based, organic colorant is universally effective on Fescue, Bermuda, Rye, and all hybrid types of grass. For nearly 15 years Green Canary has been the preferred bestinclass choice of lawn care professionals around the world. Successfully transforming and beautifying everything from residential grass lawns to Wimbledon Tennis Courts, World Renowned Theme and Amusement Parks, PGA golf courses, Presidential Palaces, Botanical Gardens, FIFA World Cup Soccer fields, Hollywood movie sets, and much more. However, if you are looking to color match your specific shade of green, this is nearly impossible. Spot treatments usually cover pet stains, dried patches, and other discolorations; however a perfect match is not possible due to the many shades of green in nature. If you are seeking a uniform look, then the entire area must be treated with Green Canary, otherwise the patches may be visible and not match the rest of the lawn.