Bayer Advanced All-in-One Rose and Flower Care combines fertilizer, insecticide and disease control. Bayer recommends it for roses (Rosa spp.), hardy in U.S. Department of Agriculture plant hardiness zones 2 through 11, azaleas (Rhododendron spp.), hardy in USDA zones 4 through 10, and similar shrubs and flowers. The product's fungicide -- tebuconazole -- controls black spot, rust and other fungal diseases, while its insecticide -- imidacloprid -- kills aphids, Japanese beetles and other insects. The 9-14-9 fertilizer, high in phosphorus, encourages blooms and strong roots. Avoid applying this product near water; it it poisonous to aquatic invertebrates.
Things You'll Need
- Watering can
- Tablespoon measure
- Quart or gallon measure
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Measure 4 tablespoons of Bayer Advanced All-in-One Rose and Flower Care for each rose you want to treat, when the plants begin to grow in the spring. Put the amount you measured into a watering can. If you're treating a flower garden, measure 4 tablespoons for every 12 square feet. If you're treating a shrub other than a rose, measure 2 tablespoons for each foot of the shrub's height.
Add 1 quart of water to the watering can for each rose or for each foot of a shrub's height. If you're treating a flower garden, add 2 gallons of water for every 12 square feet.
Shake or stir the watering can to mix the product with the water. Mix it well so the product will be evenly distributed over your plants.
Water the base of the rose or shrub. Avoid getting the product on the leaves. If you're watering a flower bed afterward, you can sprinkle the flowers if necessary, since the extra dilution from watering makes the product safer for the leaves.
Fill the watering can with plain water and water the plants again to make sure you've applied all the product. Rinse out the watering can well when you're through so that left over product doesn't get on other plants.
Repeat the treatment again in six weeks and 12 weeks for a total of three treatments a year. If you have sandy soil and problems with plant diseases, apply the product every four to five weeks, for a total of four applications a year.