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Cucumber variety

Japanese Long Cucumber: Days to Maturity & Growing Tips

Japanese Long is an Asian heirloom of the kyuri type that anchors Japanese cooking: slender fruits 8 to 12 inches long and 1 to 1.5 inches thick, smooth dark green skin so thin it needs no peeling, a tiny seed cavity, dense crisp flesh and a mild, sweet flavor with almost no bitterness.

Key facts

Days to maturity
68 days
Listed for
United States

Overview

Japanese Long is an Asian heirloom of the kyuri type that anchors Japanese cooking: slender fruits 8 to 12 inches long and 1 to 1.5 inches thick, smooth dark green skin so thin it needs no peeling, a tiny seed cavity, dense crisp flesh and a mild, sweet flavor with almost no bitterness. That density keeps slices crunchy in salted tsukemono and oi sobagi kimchi as well as in fresh salads. Grow it vertically; direct sow 1 inch deep after frost once soil tops 65 F and train the climbing vines on a trellis for straighter fruit and better airflow. About 68 days.

Japanese Long traits

  • Slender 8 to 12 inch fruit, 1 to 1.5 inches thick
  • Thin dark green skin, tiny seed cavity, few seeds
  • Dense crisp flesh, mild and non-bitter
  • Climbing vines best trellised
  • Asian heirloom
  • About 68 days

Good for

  • Fresh slicing
  • Tsukemono and kimchi
  • Salads

Compare with other cucumber varieties

Blank cells mean there is no data on record. Select a variety name to open its page.

VarietyDays to maturityGrowth habitType
Japanese Long this page68 days——
Hartley68 days——
Daytona67 days——
Poinsett 7667 days——
Edmonson70 days——
Langelang Giant70 days——
Little Potato70 daysSemi-bush—

Japanese Long FAQ

What kind of cucumber is Japanese Long?

Japanese Long is an Asian heirloom of the kyuri type that anchors Japanese cooking: slender fruits 8 to 12 inches long and 1 to 1.5 inches thick, smooth dark green skin so thin it needs no peeling, a tiny seed cavity, dense crisp flesh and a mild, sweet flavor with almost no bitterness. That density keeps slices crunchy in salted tsukemono and oi sobagi kimchi as well as in fresh salads.

How many days to maturity is Japanese Long?

Japanese Long is listed at 68 days. Sowing and planting times are the same as for other cucumber varieties, so check them in the cucumber growing guide.

How does Japanese Long compare with other cucumber varieties?

Japanese Long: 68 days. Similar cucumber varieties include Hartley (68 days), Daytona (67 days), Poinsett 76 (67 days). The comparison table on this page lists days to maturity, growth habit and type side by side.

What is Japanese Long good for?

Japanese Long is grown for fresh slicing, tsukemono and kimchi, salads.

Sowing, care and common problems

Sowing times, care and common problems are the same for every cucumber variety, so they are covered once in the growing guide.

Source

Source: Cornell University (CALS Garden-Based Learning)

The text on this page is our own summary written from the published variety record, not a copy of it.

Keep a growing history for Japanese Long

Type the plant name, add the planting date, and take photos as it grows. Next season you will have your own dates for sowing, flowering, and harvest instead of a generic calendar.

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