Which tomato variety is more resistant to mildew?

plante des tomates

As gardeners across the United States welcome the spring season in April, many are preparing their gardens for tomato planting an annual ritual cherished by many. However, the joy of growing tomatoes can often be overshadowed by the threat of diseases such as mildew.

Selecting tomato varieties with built-in resistance to this disease can significantly enhance your gardening success and yield.

Understanding mildew in tomatoes

Mildew, particularly powdery mildew, affects tomato plants by forming a white powdery residue on the leaves, which can lead to photosynthesis disruption and eventually weaken the plant. This fungal disease thrives in both humid and dry weather conditions, making tomatoes in many U.S. regions susceptible.

Planting and care tips

  • Spacing: Ensure that there is adequate space between plants to improve air circulation and reduce mildew risk.
  • Watering: Water the plants at the soil level to avoid wetting the foliage, as moist leaves can promote fungal growth.
  • Pruning: Regularly prune the lower leaves to improve air circulation around the base of the plant.
  • Mulching: Apply a layer of organic mulch around the plants to help retain soil moisture and prevent the splash of spores onto the plants.


Top resistant tomato varieties

To combat this, consider planting the following tomato varieties known for their resistance to mildew:

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Variety Description Ideal for
Defiant PhR This hybrid is highly recommended for its strong resistance to both late blight and powdery mildew. Defiant PhR produces medium-sized, globe-shaped red tomatoes that are not only disease-resistant but also flavorful. Gardeners looking for a reliable crop in regions prone to mildew.
Mountain Magic Known for its resilience, Mountain Magic offers good resistance to early blight and powdery mildew. This variety yields small, round fruits that are very versatile in the kitchen. Higher altitude gardens where cooler temperatures favor mildew growth.
Jasper As an All-America Selections winner, Jasper is celebrated for its exceptional taste and robust disease resistance package, including resistance to powdery mildew. These cherry tomatoes are perfect for salads and snacking. Small gardens or containers where air circulation can be controlled to reduce mildew risks.
Iron Lady This first tomato variety to offer triple disease resistance to late blight, early blight, and powdery mildew. Iron Lady produces medium-sized fruits suitable for a variety of culinary uses. Gardeners in humid climates who struggle with multiple tomato diseases.
Legend An early ripening variety that is known for its mildew resistance and ability to produce fruit under cooler temperatures, making it an excellent choice for Northern gardeners. Regions with short growing seasons and cooler spring temperatures.
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Selecting tomato varieties that are resistant to mildew can greatly reduce garden maintenance and increase the likelihood of a healthy, bountiful harvest. By combining resistant varieties with good gardening practices, you can enjoy a thriving tomato garden even in the presence of mildew.

Whether you are a novice gardener or a seasoned pro, these varieties and tips will help you achieve optimal results in your spring tomato planting endeavors in the United States.


Justin, an avid writer, is equally passionate about gardening, especially cultivating beautiful flowers and productive vegetable patches. His writing skillfully intertwines his gardening experiences with vivid descriptions and keen insights, inspiring readers to appreciate nature's beauty and consider their own gardening adventures.