Red Seal Landscape Horticulturist Practice Exam

Which type of mulch is best suited for vegetable gardens?

1. Organic mulches like straw or wood chips

2. Plastic mulches for temperature control

3. Gravel mulches to suppress weeds

4. Inorganic mulches for aesthetic purposes

The correct answer is: Organic mulches like straw or wood chips

Organic mulches like straw or wood chips are ideal for vegetable gardens due to their numerous beneficial properties. They help retain moisture in the soil, which is particularly important for vegetable growth, as it reduces the need for frequent watering. Organic mulches also act as a natural weed suppressor by blocking sunlight and preventing weed seeds from germinating. As they decompose, these materials contribute valuable nutrients back into the soil, improving soil structure and fertility over time. In contrast to organic mulches, plastic mulches primarily focus on temperature management and can create challenges in terms of water penetration and soil health. Gravel mulches might effectively suppress weeds, but they do not provide the additional benefits of moisture retention or soil enrichment essential for growing vegetables. Inorganic mulches may enhance the garden's visual appeal but do not contribute to soil health or moisture retention, which are critical for vegetable production. Therefore, organic mulches stand out as the best option for promoting a healthy and productive vegetable garden.