There's a thin line between what constitutes an heirloom and hybrid. Marketmore 76 is frequently described as a Non-Hybrid, in part because it has not really been around all that long. It was developed by a Dr. Henry Munger in 1976. That's 30+ years - Close enough ?
In any event, this hybrd heirloom cucumber is a home garden favorite of many gardening aficionados and culinary elitists.
It produces an abundance of flavorful straight and smooth 8-9" cucumbers. They begin bearing in mid season and continue right up till old man winter spews his frosty breath on their lush foliage.
They are classified as "slicing cucumbers" because that's what they are best suited for. However, they will also serve well in pickling, recipes, salads and so on.
Disease Tolerance: Downy Mildew, Cucumber Mosaic Virus, Powdery Mildew, Scab.
Germination 7 to 10 days.
Maturity 65 to 70 Days
Soil Temperature should be 70 - 90 F for best results
Color Uniform Medium Green
4 -6 feet vine - 6 Foot spread
Trellising or supports advisable
Plant Spacing 36 to 48 inches
Row Spacing 5-6 Ft.
USDA Hardiness Zones 4-12
Fruit Size 7 - 9 inches Long
Optimal Temperature post germination 70 - 90 F.
This plant is not drought tolerant and needs frequent watering.
Above Average Yields
For Direct seeding daytime temps should be above 70 but not much higher than 85 F. Sow at least a week following the last frost. You may need to thin out some of the weaker plants as they begin to develop.
Plant cucumber seeds 1/2 to 1 inch deep and thin the seedlings to one plant every 12 inches in the row or to three cucumber plants every 36 inches in the hill system.
Plant cucumber transplants 1 to 2 feet apart in rows 5 to 6 feet apart when they have two to four true leaves
For greenhouse or Hydroponic Cucumbers it is best to prune to one central leader on each trellis.