For use on Roses, Flowering Plants, Vegetables, Shrubs, Trees. Rose Glo has been producing glowing results since 1992. fertilizer on the market, with the highest nutrient content. Rose Glo contains a high nutrient content, 6-8-4, with a wide variety of organic materials – humates, feather meal, bone meal, worm castings, alfalfa meal, compost. Timing: Every 8-10 weeks, beginning March Packaging: 30 lb bag / 15 Lb bag / 4 lb bag Apply: Plants: ¼ to ½ cup. Beds: 2 lbs per 100 sq ft …