Jobe&rsquo;s Bulb Fertilizer, Science + Nature Granular Fertilizer for Tulips, Daffodils, Lilies and other Bulb Flowers, 3.5 pound bag Jobes Science + Nature works in 3 ways Quick nutrient release from science Slow nutrient release from nature Increased microbial activity from Biozome Contains Jobes Biozomethe proprietary microorganism archaea that aggressively breaks down material for faster results