Japanese Progress is a vigorous hybrid cucumber that delivers beautiful, straight eight-inch fruit in just 50 to 60 days, making it one of the earliest producers you can grow. The glossy green skin and crisp texture make it a pleasure to harvest and eat fresh, while its heat tolerance and disease resistance mean it keeps producing through summer's hottest stretches. Growing as a vining plant that reaches 24 to 36 inches tall, it thrives across hardiness zones 2 through 13 in full sun, adapting to almost any North American garden.
18
Full Sun
Moderate
2-13
36in H x ?in W
—
High
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What strikes gardeners first about Progress is its reliability as an early cropper combined with exceptional yield. The fruit grows uniformly straight and reaches a convenient eight inches, the perfect size for slicing fresh or quick pickling. Heat tolerance sets this variety apart during sweltering summers when many cucumbers slow down or turn bitter, and its disease resistance means fewer problems to troubleshoot and more energy devoted to fruit production.
These cucumbers excel fresh off the vine, sliced into salads or eaten as a crisp snack. The manageable eight-inch length and straight form make them equally suited to quick pickling or longer ferments. The smooth skin and uniform shape also work well for presentation at farmers markets or in composed dishes where appearance matters.
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Transplant seedlings outdoors after all danger of frost has passed and soil has warmed to at least 60 degrees Fahrenheit, spacing plants 18 inches apart.
Direct sow seeds into warm, well-draining soil once soil temperature reaches 60 degrees Fahrenheit or warmer, spacing seeds 18 inches apart along trellises or rows.
Pick fruit when it reaches approximately eight inches in length and the skin is glossy and deep green. Harvest every two to three days once production begins around day 50 to 60 after planting; regular picking encourages the plant to set more fruit. Cucumbers are best eaten fresh when crisp; waiting until they yellow or enlarge beyond eight inches compromises texture and flavor.
Train vining growth onto trellises or stakes to maximize air circulation and keep fruit off the ground. Remove any dead or diseased leaves as you notice them, and thin out dense foliage if fruit becomes shaded.
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