Long Day Onion Seeds

(4.7)
13,213 View All
    • - Genda Z.
      Above And beyond expectations
    • - Mark A.
      Works great! Quality materials!
    • I was pleasantly surprised how well these seeds ge...
    • I have just started them under my grow lights. Can...
    • I gave them as Christmas presents and I will order...
    • - Jogi E.
      Perfect Quality!
    • Excellent germination and growth, took a sample fl...
    • We have ordered Majoram seeds a few times now here...
    • - Penny J.
      Fast shipping and worked well
    • easy to grow and the cats just love it..only down ...
    • If you've ever grown reg cilantro micro, you know ...
    • Super fast shipping. Great growing seeds. Amazing ...
    • - Genda Z.
      Above And beyond expectations

    Back to All Onion Seeds

    Long Day Onions need 14 to 15 hours of daylight to form a bulb. If you plan to grow in more Northern US states with hard winters, Long Day Onions are your best choice. Typically planted in spring for mid to late summer harvest.

    H
    Heirloom
    O
    Organic
    A
    AAS Winner
    F
    Staff Favorites
    C
    Container Growable
    Grow Location
    Minus
    Info
    Availability
    Minus
    New Products
    Minus
    Seed Type
    Minus
    Intended Use
    Minus
    Life Cycle
    Minus
    USDA Zone Info
    Minus
    Color
    Minus
    Days To Maturity
    Minus
    Light Requirement
    Minus
    Preferred Temperature
    Minus
    Onion-Utah-Yellow-Sweet-SpanishUtah Yellow Sweet Spanish Onion Seeds - Bulk
    HeirloomContainer

    Onion Seeds - Long - Utah Yellow Sweet Spanish

    $2.49
    40 Reviews
    Onion Walla Walla Organic SeedOnion Seeds - Walla Walla (Organic) - Packet
    HeirloomOrganic

    Onion Seeds - Long - Walla Walla (Organic)

    $3.89
    17 Reviews
    Onion Walla Walla SeedPacket of Walla Walla Onion Seeds
    Heirloom

    Onion Seeds - Long - Walla Walla

    $2.49
    22 Reviews
    Ruby Onion Vegetable SeedsRuby Onion Seed Packet
    HeirloomContainer

    Onion Seeds - Long - Ruby

    $2.49
    9 Reviews
    southport white globe 404 bunching onion seed packet
    Heirloom

    Onion - Long - Southport White Globe 404

    $2.79
    7 Reviews
    Onion - Southport Red Globe Garden SeedNon-GMO Southport Red Globe Onion
    Sold Out
    HeirloomContainer

    Onion Seeds - Long - Southport Red Globe

    $2.49
    7 Reviews
    Onion Seeds - Stuttgarter (Organic)Sold Out
    HeirloomOrganic

    Onion Seeds - Long - Stuttgarter (Organic)

    $3.89
    5 Reviews