Photo by Melody

PlantFiles: Yamato Extra Long
Cucumis sativus 'Yamato Sanjaku'

Family: Cucurbitaceae (koo-ker-bih-TAY-see-ee) (Info)
Genus: Cucumis (KOO-koo-mis) (Info)
Species: sativus (sa-TEE-vus) (Info)
Cultivar: Yamato Sanjaku

» View all varieties of Cucumbers

2 vendors have this plant for sale.

One member has or wants this plant for trade.

Vines and Climbers

8-10 ft. (2.4-3 m)

3-6 in. (7-15 cm)

Seed Type:
Open Pollinated

Sun Exposure:
Full Sun

Bloom Color:
Bright Yellow

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.6 to 7.5 (neutral)

Propagation Methods:
From seed; direct sow after last frost

Seed Collecting:
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive mrstedger On Mar 6, 2010, mrstedger from Raleigh, NC (Zone 7b) wrote:

I grew Yamato from seeds saved by my father in-law. The plants were grown on a trellis to allow the very large cucumber to hang so that it may grow straight rather than curved. The crop that did manage to be on or near the ground did curl and taper. The cukes that were hanging grew two feet+ long and straight. The Yamato has very few spines with shiny green skin.

Out of the six cukes I started last spring Yamato produced first and continued to produce well after the others, with the exception of the Super Zagross, had peaked. It was amazing to see the cucumbers grow inches in few days! In a neighborhood blind taste test with Lemon, Double Yield, Straight 8, Super Zagross and Spacemaster Bush- the Yamato won. I only wish I had another trellis available to start a late summer crop…

From Kitazawa Seeds:
This cucumber is a traditional variety from historic Yamato Province now known as Nara Prefecture of Japan. Sanjaku means three feet. This cucumber variety produces a generous crop of remarkably long, narrow fruit. It is best if harvested up to 2 feet long with a 2" diameter — throughout the growing season. A few white spines appear on the light green skin, which encloses sweet, crisp white flesh and a relatively small seed cavity. Ideal for a cold cucumber salad, this variety is delicious prepared fresh or lightly cooked in Asian dishes. The Yamato Sanjaku is perfect for pickling, as well. 75 days.


This plant has been said to grow in the following regions:

Raleigh, North Carolina

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