"Multiplier Onions Allium cepa, Aggregatum Group: Multiplier onions form a cluster of underground bulbs from each single bulb planted. Once established in your garden, multiplier onions will improve in size and quality, and their bulbs can be replanted year after year. A great food source for the self-sufficient.

CULTURE: Plant multiplier onions in the fall as you would garlic. Plant individual bulbs 6 inches apart in the row and at a depth that allows the very tip of the bulb to lie even with the surface of the soil. A few inches of mulch or compost spread over the bulbs completes your planting. The following spring the onion will send up leaves. Be sure to remove any seed head that may want to form. Fertilize with a high nitrogen fertilizer such as Bio-fish 7-7-2 in March and again 8 weeks later. Well-drained fertile soil and regular watering during the summer produces larger bulbs.
HARVEST: Harvest typically occurs from July to August. Bulbs should be dried on racks or screens, out of direct sunlight. Select and save the biggest and best bulbs for replanting in the fall. Store bulbs as you would globe onions, inside a mesh bag in a cool, shaded, dry location.

Topsetting Onions Allium cepa, Proliferum Group: Egyptian onions, also known as tree or walking onions, are very hardy perennials. These fascinating onions form several small bulbs underground, plus they produce clusters of reddish hazelnut-sized bulblets that form at the top of each seed stalk. Normal flowers do not occur.

CULTURE: Plant bulblets 5–6 inches apart, 1 inch deep, in rows spaced 12 inches apart. Once Egyptian onions have established themselves, you can harvest and cook with the bulbs at the base of the plant and replant the bulblets gathered from the top of the stems. If left untended, you will understand the term ‘walking onion’, as the onion stalks will bend down to the ground and take root all by themselves.
HARVEST: From late summer through early fall, use a garden fork to lift the clumps and separate the onions. In more severe microclimates, bulbs should be stored and planted in the spring. The underground bulbs have a very strong flavor and can be used in a wide variety of your favorite recipes. The stalk bulblets are somewhat spicy and are delicious pickled. They can also be used when pickling other garden vegetables. Be sure to replant some of the bulblets to keep your walking onion patch going.

Topsetting and Multiplier Onions are shipped only in the fall-late September or early October, depending on the season. Order before September 15th for the best availability. Sorry, not available to Idaho or Canada."