Whole Aonaga Jibai Cucumber on a white background.
Cucumber Seeds, Aonaga Jibai
Aonaga Jibai Cucumber with slices, flowers and refreshing drink.
Aonaga Jibai cucumbers growing in garden.
Cucumber Seeds, Aonaga Jibai
Whole Aonaga Jibai Cucumber on a white background.
Cucumber Seeds, Aonaga Jibai
Aonaga Jibai Cucumber with slices, flowers and refreshing drink.
Aonaga Jibai cucumbers growing in garden.
Cucumber Seeds, Aonaga Jibai

Cucumber Seeds,
Aonaga Jibai

4.532 ReviewsSKU: #CU120Min. seed count: 15
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Description

(Cucumis sativus). Exceptionally sweet, tender, and above all—hardy. Aonaga Jibai is one of our finds from a recent seed saving expedition to Japan. Known in the southern islands of Japan, the seeds have been preserved over generations by an old family in Beppu City on Kyushu Island. The long, slender 8-inch fruit is bitter free and super sweet with inconspicuous seeds, making it a perfect marketing cucumber with flavor that stands out from the rest. The 1939 seed catalog of Tanaka & Co. said: “Hardiness and prolific bearing character are meritorious features of Japanese varieties of cucumber. They withstand drought, moisture and attack of fungoid disease to a remarkable degree.”

Growing Tips: Aonaga Jibai cucumbers thrive in warm weather with consistent watering and full sun. These cucumbers produce slender, dark green fruits with a crisp bite and mild flavor. Use mulch to maintain soil moisture and keep fruits clean. Regular harvesting encourages prolonged productivity. Some afternoon shade is beneficial in the hottest summer weather. Trellis growing saves space.

Plant Details

Botanical Name
Cucumis sativus
Life Cycle
Annual
Growth Habit
Vining
Sun Requirement
Full sun
Days to Germinate
5–14
Days to Maturity
55–70
Planting Depth
½ in.
Plant Spacing
12–24 in. (trellised) 36–60 in. (on ground)
Ideal Temperature
70–95°F
Frost Hardy
No

When to Grow

Sow Aonaga Jibai cucumber seeds after your last spring frost, when the soil is at least 70°F. In short-season areas, start seeds indoors 3–4 weeks prior to transplanting. This variety performs best in warm, sunny conditions with ample airflow and space to spread. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

Choose a sunny, well-drained location. Enrich the soil with compost or aged manure before sowing. Plant seeds 1/2 inch deep directly into the ground or containers. Space plants 12 to 24 inches apart and provide a trellis. Keep soil evenly moist until germination.

How to Grow

Water deeply and regularly, focusing at the base to avoid leaf diseases. Apply mulch to reduce weeds and conserve soil moisture. Fertilize with a balanced, organic fertilizer every few weeks. Aonaga Jibai cucumbers are relatively low-maintenance but benefit from good air circulation and consistent harvesting to ensure continuous fruit production.

How to Save Seeds

  • Select disease-free plants for seed saving.
  • Allow fruits to fully ripen on the vine (they will turn yellow or orange).
  • Scoop out seeds and pulp into a jar or bowl with water.
  • Ferment at room temperature for 2–3 days, stirring daily.
  • Rinse seeds thoroughly and dry on a screen or paper towel for 1–2 weeks.
  • Store in a cool, dry place in a labeled and dated airtight container.

FAQ

Can I grow Aonaga Jibai cucumbers without a trellis?

Yes, however, trellising can enhance airflow and fruit health and appearance. Growing directly on the ground is more suitable for drier areas with low humidity.

Are Aonaga Jibai cucumbers good for pickling?

While best enjoyed fresh due to their crisp texture and mild taste, they can also be pickled, especially when harvested young. Their slim, uniform shape lends itself well to small-batch pickling.

What makes Aonaga Jibai cucumbers unique?

Aonaga Jibai cucumbers are a Japanese heirloom with tender, slim fruits. They are prized for their delicate flavor, early yield, and suitability for both small spaces and intensive gardening.

Browse our full range of cucumber seeds.
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