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Yamato Extra Long 'Yamato Sanjaku'

Cucumis sativus

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

Unknown - Tell us

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


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

Raleigh, North Carolina

Gardeners' Notes:


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 summ... read more