How often should ground covers, annuals, and herbaceous perennials be fertilized?

Fertilizing ground covers, annuals, and herbaceous perennials every 4-6 weeks is appropriate for their growth and health. This timing allows for a steady supply of nutrients to support their active growth, particularly in the growing seasons of spring and summer. Frequent fertilization, such as once a month or every week, may lead to nutrient buildup in the soil, which can harm the plants and the environment.

Fertilizing twice a season might not provide enough nutrients for these plants, especially during peak growth periods when they require more resources to thrive. Therefore, the interval of 4-6 weeks strikes a balance, ensuring the plants receive adequate nutrition without the risk of over-fertilization. This approach is essential for maintaining vigorous growth, abundant blooms, and overall plant health.