Mars Grape
Mars is a blue seedless grape with good disease resistance and strong garden reliability. It is often recommended for home growers in humid regions.

About Mars
Mars is a blue seedless grape with sweet, juicy slip-skin berries and flavor somewhat reminiscent of Concord. It is especially useful in humid climates because the vine has good resistance to common grape diseases, including powdery mildew and black rot.
Growing Mars Grape
Mars is a practical choice for Eastern gardens, but it still needs full sun, annual pruning, and a trellis to fruit well. Keep clusters exposed to light and airflow, and harvest when berries are fully blue and sweet, not just colored.
For planting dates, care, and harvest that apply to all grapes, see the complete guide.
How to grow GrapesOther grapes varieties
Variety characteristics are general guidance for US home gardens; performance varies by climate, soil, and season. Seed and plant availability differs by supplier. Page updated Aug 4, 2026.