Melilotus spicatus

European sweetclover comes from bright, open environments and performs best in full sun. It can tolerate some partial shade but prefers direct sunlight for optimal growth. This plant, which can be annual or biennial, is recognized for its sun-loving habit.

European sweetclover can tolerate a wide range of temperatures, though its distribution may still be restricted by different combinations of moisture and heat. It does best in warm summer conditions with sufficient rainfall or irrigation. Extended stretches of cloudy, rainy weather or prolonged high temperatures raise the chance of the plant dying. In winter, adequate protection from cold improves its survival rate.

European sweetclover benefits from frequent, light applications of fertilizer to encourage healthy leaf growth. Fertilize European sweetclover roughly once a month during the summer. Nitrogen is essential for foliage, and adding nitrogen-rich sources helps European sweetclover thrive.