Where to Plant Sunflowers
Sunflowers grow best in full, bright sun, and in evenly moist, well-drained soil. The amount of space they need depends on which varieties you are growing. Branching types with multiple blooms on one stem need more space horizontally than large single-flowered types. Take care to select a spot to grow taller varieties where they won’t throw too much shade on other shorter, sun-loving plants. The north side of a flower border is almost always a good spot.
When to Plant Sunflowers
Sunflowers are warm-weather plants. You can plant sunflowers outside at the same time you plant peppers, tomatoes, eggplants, zinnias, and other warm-season vegetables and flowers. For a longer sunflower bloom period, plant a row or grouping of sunflowers every two weeks for four to six weeks during the early summer.
How to Prepare the Soil for Planting Sunflowers
Make sure your plants get off to the best start! Prepare new in-ground planting areas withMiracle-Gro® All Purpose Garden Soil, mixing 3 inches of garden soil into the top 6 to 8 inches of native soil. This will feed new plants and help build strong roots, both of which will mean big, beautiful blooms! Of course, your best path to sunflower success comes from a combination of great soil and just the right plant food, so be sure to read the "How to Feed Sunflowers" section below.
