Remke 21 Gram Planting Tablets 20-10-5 - 100 tablets (Easy to Use) - Remke 20-10-5 Professional 2-Yr Time Release Planting Tablets- For Root Zone Feeding. These planting tablets are packed with micronutrients and are a complete plant food, supplying the full range of major, minor, and micronutrients necessary to meet the continuing needs of all plants. Remke Tablets are Excellent for new plantings and existing trees, shrubs, evergreens, fruit trees, citrus trees, large planters and other plants. Completely safe and very easy to use, just punch holes 4-6" deep in the soil around the drip line, insert the tablet and cover with soil. Feeds safely and uniformly for up to 2 years. Leach resistant, low salt index. Application Rates- 1 tablet for every 18-24" of plant height-for trees=1 tablet for every 1/2" of tree diameter. These really make a difference on plant performance. Thanks for visiting and Happy Gardening. Sold in boxes of 100 tablets