How to Water Sunflowers
- 1). Water sunflowers when the soil feels dry 1 inch below the surface of the soil. Insert a finger into the soil to assess the moisture level. Early morning watering is recommended, as it provides the plants with moisture before the heat of the day arrives.
- 2). Water thoroughly to moisten the soil to the root level once or twice a week. Sunflowers prefer 1 inch of rain a week. If rain is insufficient, supplemental watering is necessary to promote healthy growth.
- 3). Check the soil often for signs of drying. During hot dry spells, soil dries quickly and the sunflowers may require more frequent watering. Those grown in containers or raised beds may require daily watering, as soil in containers dries quickly in the summer sun.
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