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Professional Grower | Home Gardener


Onion Sets

Great for cooking, very healthy, and easy to grow! Onions are one of the most popular vegetables in the home garden. You can plant them in the early spring, after the ground warms to about 50° F, in well-drained soil. Push the sets 1-2" into the soil at 3-6" intervals, cover with 1-2" of dirt, and water immediately. Four to five weeks after planting, side-dress with additional fertilizer. Place the fertilizer in a narrow band about 2 to 3” from the base of the onion plants. Dry bulbs will be ready for harvest when tops have dried and fallen over naturally, usually in August or September. Lift onions gently with a fork and store in cool, dry conditions. They may also be planted so the sets are nearly touching and harvested for green table onions when tops reach 6" tall.

Growing Tip:
When bunching onions are half-grown, build up soil 3-4" around base. This will keep stems white and tender.

ORDER MINIMUM: A $225.00 minimum order on items supplied by DeGroot is required. A $150.00 minimum order on items supplied by Garden Galleries is required. Orders not meeting the minimum will be charged a $25 handling fee.

SHIPPING INFO: The Home Garden products listed in this section have fixed ship dates based on your location—see the specific product page for details. The De Groot products will ship once your order is processed, starting in early February unless you specify a later ship week in the Order Notes field at checkout. Shipments continue through late spring until product is sold out. Please see individual product pages for more information and any state restrictions.

Onion Red Weathersfield - Home Garden
Onion Red Weathersfield - Home Garden

Onion Yellow Ebenezer - Home Garden
Onion Yellow Ebenezer - Home Garden


The Harris Seeds company began catalog operation in 1879. It evolved from the efforts of Joseph Harris who was extremely successful in the selection of superior strains of vegetables and grains. The company became wildly popular because of his basic business philosophy - "Offer my customers a quality product at a fair price and they will return."



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