Yamato Extra Long

Cucumber

Zone 1a Save Garden

Botanical illustration of Yamato Extra Long

🌱 60d to harvest Vine

Crisp as cool glass, Yamato Extra Long delivers a long, elegant crunch with a clean, refreshing flavor and a subtly sweet finish.…

Crop Dates

Milestone	Date
Start Indoors	Jun 29th
Last Frost	Jun 15th
Transplant / Sow Outdoors	Jul 13th
Harvest Begins	Sep 11th
Harvest Ends	Jul 15th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	65
Min Night Temp (°F)	55
Harden Off (days)	12

Recommended Companions

Superdukat Dill

Fernleaf Dill

Fireball Marigold

Taishan Yellow Marigold

Bouquet Dill

Dukat Dill

Frequently Asked Questions

What pest or disease problem is most likely for Cucumis sativus (cucumber) and how do I manage it?

Watch for powdery mildew, which shows up as a white, dusty coating on cucumber leaves, often late in the 60-day season. Start prevention by spacing plants for airflow and removing the most affected leaves early; water the soil, not the foliage. If mildew is spreading, use a labeled fungicide for cucumbers as soon as you see the first patches and repeat according to label directions.

How often should I water Cucumis sativus during the main growing phase to keep it productive?

From when vines begin running until harvest, keep soil evenly moist—about 1 inch (2.5 cm) of water per week, increasing during hot spells. Aim for deep watering 1–2 times per week rather than light daily sprinkles, so moisture reaches the root zone. If leaves wilt at midday and rebound by evening, adjust upward; if plants stay wet and wilt, improve drainage to avoid root stress.

How can I tell when my Cucumis sativus is ready to harvest?

Harvest when fruits are fully elongated for your target length and the skin is still glossy and tender, typically around 60 days from sowing depending on conditions. Check by pressing a fingernail lightly into the cucumber—if it dents slightly but doesn’t feel hard, pick it. Don’t let fruits over-ripen on the vine, since cucumbers become seedier and can slow new fruit set.

Crisp as cool glass, Yamato Extra Long delivers a long, elegant crunch with a clean, refreshing flavor and a subtly sweet finish. The fruit stays tender and juicy as it matures, making it especially satisfying for fresh enjoyment and for showcasing in vibrant, quick-turn preparations like stir-fries and bright sauces. Grow this Asian cucumber for its graceful, market-ready length and its dependable, garden-to-table performance in about 60 days.

Sowing Tips

Transplant Conditions

Wait until soil reaches 65°F and nights stay above 55°F before moving outdoors. Harden off for 12 days first.

Direct Sow Preferred

Sensitive roots — does not transplant well. If starting indoors, use biodegradable pots and disturb roots as little as possible when moving outdoors.

Expert Note

For longest, straight fruit, grow on trellises and keep soil evenly moist while vines establish—avoid letting them dry out early.