Family Owned Since 1979
Cultivating Gardeners

ONION SETS

ONION SETS

Product Description:

85-90 days. If you live in the far north with a very short growing season, onion sets are a nearly foolproof method of successfully producing bulb onions. These long-day onions can also produce a very quick crop in gardens with a longer growing season. We recommend waiting to plant, as the crops may bolt if planted too early. Our open pollinated selection produces slightly flattened bulbs that are best eaten fresh or processed promptly. Certified free of white rot and stem nematode. Approximately 100, ½-¾ inch sets per pound.

Onion sets ship April/May. Order early for best availability. Detailed planting information and growing instructions are included with each order. Not available to ID, Malheur county in OR, or outside the contiguous US.
  • Key Features:

BULB

$12.95

$12.95

  • Key Features:

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
S
Sara
Quick starters

Early review, but these things haven taken off. So healthy & better looking than the smaller onion starts I've had for years... looking forward to a big harvest.

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.

Culture
• 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

Transplanting
• 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.

Thanks for signing up for our weekly newsletter!