Natsuguro Bunching Onion


Natsuguro Bunching Onion is a spring onion/scallion variety with extreme heat-tolerance into the warmer months. It can be planted throughout the spring months and harvested into the summer. Great for soups and salads. Allium cepa. 65 days to maturity. Treated.

250 seeds per packet

Availability: In stock

Natsuguro Bunching Onion is a spring onion that is exceptionally heat-tolerant for plantings throughout the entire spring season. These bunching onions are commonly referred to as scallions and are generally harvested when stems are about 1/4 – 1/2″ in diameter. However, stems will get larger if plants are spaced farther and allowed to grow longer. The heat-resistance of this bunching onion variety allows for much later plantings and harvests into the summer months.

Natsuguro Bunching Onion can be direct-seeded or transplanted. For direct-seeding, plant seeds 1″ apart along the row with a row spacing of 24″. Natsuguro Bunching Onion seeds can be planted with our Hoss Garden Seeder. We recommend using a #1 seed plate and modifying the hole size slightly to accommodate the onion variety being planted. For denser plantings, more holes may need to be drilled to accommodate a thicker spacing.

For transplanting, plant several seeds per cell in our heavy-duty seed starting trays. Once the green stems reach 6-8″ in length and/or they can be easily pulled from the seed trays, the transplants are ready to go in the ground. Transplant each cell 2-4″ apart along the row with a row spacing of 1 foot. If drip irrigation is used, onions may be planted on double rows with drip irrigation in the middle. We suggest burying the drip tape 3-4″ deep and planting on both sides of the tape.

Onions are heavy feeders and will require significant nutrient inputs throughout their lifespan. We recommend feeding them with our 20-20-20 and Ammonium Sulfate fertilizers. Fertilize with 20-20-20 shortly after transplanting. The phosphorous and potassium in the 20-20-20 fertilizer will help to promote solid root development, while the nitrogen will promote vegetative growth. Once transplants are established, we recommend side-dressing or injecting with our Ammonium Sulfate fertilizer.  Side dress or inject 1 cup per 20 feet of linear row every 3-4 weeks after transplanting.

Natsuguro Bunching Onion Planting Information

Planting Method: transplant

When to Plant: early spring and fall

Planting Depth: 1/4″

Seed Spacing: 2″

Row Spacing: 24″

Days to Maturity: 65

Disease Resistance: None

– Plant in spring for a mid-summer harvest
– Start bulbing when day length reaches 14-16 hours

– Plant in late winter for an early summer harvest
– Start bulbing when day length reaches 12-14 hours

– Plant in fall if temps are rarely below 20F
– Plant in late winter if temps are frequently below 20F
– Start bulbing when day length reaches 10-12 hours


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