Long Green Improved Cucumber

Grow the classic Long Green Improved Cucumber, a time-tested heirloom variety that produces abundant 10-12 inch dark green cucumbers with crisp, white flesh and excellent flavor. These vigorous vines deliver reliable yields of straight, cylindrical cucumbers perfect for slicing, pickling, or fresh eating. A versatile variety that has been a garden favorite since the 1800s for its dependable performance and superior quality.

Growing Information

Days to maturity: 60-70 days from direct seeding
Planting: Direct sow after last frost when soil temperature reaches 70°F, or start indoors 3-4 weeks before last frost; plant seeds 1 inch deep
Spacing: 12 inches apart in rows 5-6 feet apart, or 3-4 plants per hill with hills 4-5 feet apart
Sun: Full sun (6-8 hours daily)
Plant type: Vining plants spread 6-8 feet; can be trellised
Zones: 3-11 (warm-season annual)

Harvest & Use

Harvest when cucumbers reach 8-12 inches long for best flavor and texture. Pick frequently to encourage continued production. The dark green cucumbers have crisp, white flesh with mild, refreshing flavor and few seeds. Perfect for fresh slicing, salads, sandwiches, and vegetable trays. Also excellent for making dill pickles, bread and butter pickles, or relish. Each vine produces 15-20 cucumbers throughout the season with regular harvesting. Store fresh cucumbers in the refrigerator for up to 1 week.

Care Tips

Long Green Improved cucumbers thrive in rich, well-drained soil heavily amended with compost. Water consistently and deeply, providing 1-2 inches per week, especially during fruit development. Mulch around plants to conserve moisture and keep fruits clean. Trellis vines for straighter cucumbers, better air circulation, and easier harvesting. Side-dress with compost when vines begin to run. Plant with beans, peas, radishes, or sunflowers for excellent companion planting. Avoid planting near potatoes or aromatic herbs. Cucumbers need consistent warmth – use row covers in cooler climates to protect young plants.

Why Choose Long Green Improved Cucumber

This proven heirloom offers exceptional versatility as both a slicing and pickling cucumber, eliminating the need to grow multiple varieties. The vigorous vines deliver reliable, abundant yields even in variable conditions. The classic dark green color and straight shape make these cucumbers market-quality. As an open-pollinated variety, you can save seeds and maintain this dependable performer year after year. The crisp texture and mild flavor make these cucumbers perfect for fresh eating while the ideal size works beautifully for pickling. Whether you're growing for fresh salads or putting up pickles, Long Green Improved delivers the quality and productivity that has made it a garden standard for over a century.