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Product Description:

Allium fistulosum 55 days. This award winning, Japanese bunching onion is non-bulbing and has a mellow, sweet flavor for garnishes, salads, and dicing into savory dishes. Summer Island tops out at 12 inches tall with brilliant white shanks and jade green tops. Cold hardy for delicious, fresh, green onion flavor throughout the cool months.
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  • Key Features:

Customer Reviews

Based on 1 review
Not ideal for a perennial patch

I ordered these hoping I could start a perennial scallion patch like I remember from when I was a kid. Since these are allium fistulosum, they should divide and form clumps.

The initial spring planting, direct sown, worked great! Lots of plants sprouted, and thrived even without a lot of attention. They overwintered well, and came back the next season as a nice scallion patch. Unsurprisingly, many of them flowered, but I expected that.

But I'm now starting the third season, and many of them did not make it through the winter, despite it being relatively mild (I'm in Zone 7, but this was more like a Zone 8 winter). And those that did, while healthy-looking and flowering again, didn't divide! There's no clumps, just big plants. Feeling with my finger, I don't feel a big bulb, so I do think they are allium fistulosum. But I've read elsewhere that that cultivars that have big thick leaves aren't as prone to division, and my sense is this is one of those cultivars. I think it's meant to be grown for single-season use, and it would have been good for that. I'm still hoping they'll divide eventually, but I suspect there are better cultivars for that...

Soil Temp for Germ 50–75°F
Seed Depth ⅛–½"
Seed Spacing 2–4/inch
Days to Emergence 6–16
Thin Plants to 2–7"
Row Spacing 12–24"
Fertilizer Needs Medium
Minimum Germination 75%
Seeds per Gram ≈ 200
Seed Life 1 year

Allium cepa Days to maturity are calculated from date of direct seeding.

• Onions are photoperiodic plants — they regulate their stages of growth by day length
• Onions will make top growth until the critical light duration is reached, then bulbing begins
• The amount of growth and development prior to bulbing will determine the bulb size
• Long-day varieties do well in northern states where summertime day length is between 14-16 hours
• Short-day varieties do well in southern states and bulb when day length is 10-12 hours; they won't get very large in northern states
• Dividing line between short-day and long-day varieties is generally accepted as 36° latitude, roughly along the Kansas/Oklahoma border
• Day-neutral and intermediate-day varieties start bulbing when day length is 12-14 hours; can be successfully grown anywhere
• Onions prefer light, sandy, loamy soils
• Apply 1/4-1/2 cup of TSC's Complete fertilizer per 5 row feet, 1-2 inches below transplant or seed

Direct Sowing
• Thin to the strongest plant when 4-5 inches

• Sow up to 10-12 seeds in a 4-6 inch pot
• If tops reach over 5 inches before transplant, cut to 3 inches
• When planting out carefully separate the seedlings and place in a shallow trench
• Fill trench around seedlings and water in well

Insects & Diseases
• Common insects: Onion thrips and maggots
• Insect control: Pyrethrin or Predatory Nematodes
• Common diseases: Fusarium basal rot, pink root
• Disease prevention: 5-7 year crop rotation

Harvest & Storage
• For scallions: harvest when pencil size or larger, wash and trim roots, store in a bag at 36°F and 95% relative humidity
• As bulbs approach maturity, withhold water so protective paper can form
• After about half the tops have fallen, push over the remainder; wait about 1 week then harvest
• Cure in a warm (75-80°F), shaded, well-ventilated location until outer skin and necks are dry, then trim tops, leaving one inch above the bulb
• Store in a cool, dry, well-ventilated area
• Check occasionally and immediately remove any sprouting or rotting onions

What is pelleted seed?
Seed that has been coated with a clay-based material to form a larger, round shape. This makes planting by hand or mechanical seeder easier and allows for more controlled sowing of small seeds such as carrots or lettuce. All pelleted seed has a National Organic Program (NOP) approved coating.
For best results, store pelleted seed in an air-tight container and use within one season.

What is seed tape?
Seed tapes are perfectly straight rows of precisely spaced crops. No more having to thin seedlings! This biodegradable tape will plant a row 5 meters (16 feet, 5 inches) long. Simply lay it in a furrow and cover with a light layer of sifted compost or soil, water and wait. Save yourself a heap of planting time with these popular vegetable and herb staples.

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