Tree Onion belongs to the Allium genus.

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Plant Wiki

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Plant taxonomists have divided onions (Allium cepa) into three groups, the Cepa Group (bulbing onions), the Aggregatum Group (shallots, multiplier onions, potato onions), and the Proliferum Group (top-setting onions, walking onions, Egyptian onions, tree onions).

• Lifecycle The lifecycle that this plant exhibits. ? Category The basic category that this plant belongs to. ?
• Hardiness How frost hardy this plant is. ? Country of Origin Where this plant originated from.
• Mature Height How tall the plant will be when it grows up. ? Mature Spread How wide the plant will be when it grows up. ?
• Bloom Time When this plant usually blooms. ? Harvest Time When this plant is usually harvested. ?

How to keep this plant happy

• USDA Zone Range The zones that this plant is recommended to grow best in. - pH Range The level of acidity that this plant thrives in. -
• Water Requirements The amount of water that this plant likes to drink. ? Nitrogen Requirements The amount of nitrogen that should be present in the soil. ?
• Soil The type of soil that this plant likes to live in.
  Clay Combination
  Sun The type of light that this plant likes to sunbake in.
  Full Sun Partial Sun
• Min. Air Temperature The lowest air temp that this plant will be happy in. ? Max. Air Temperature The highest air temp that this plant will be happy in. ?

Sowing and Germinating Instructions

• Can Sow Direct? Can seeds be sown directly in situ? ? Sowing Depth Seeds should be sown at this depth. ?
• Sowing Distance Apart This plant should be sown at least this distance apart ? Sowing Row Distance Apart This plant should be sown in rows at least this distance apart ?
• Min. Germination Temperature The lowest temp that this plant will germinate from seed. ? Max. Germination Temperature The highest temp that this plant will germinate from seed. ?

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Planting Out / Transplanting Instructions

• Planting Distance Apart Seedlings should be planted this far apart. ? Planting Row Distance Apart Rows between plantings should be at least this far apart. ?

How long does it approximately take to grow?

• Days to Germination From seed to seedling days Average days | Min days | Max days (0)
• Days to Transplant From seedling to transplant / planting out + days
• Days to Maturity From transplant to harvest / maturity of plant + days Total Growing Days From seed to maturity = days

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When should I start sowing and growing?

• When to sow The number of days to sow before or after your last frost date. ? When to plant out The number of days to plant out before or after your last frost date. ?

Etymology

Folklore

Other Names

Pearl Onions, Top Onions, Topset Onions, Walking Onions, Egyptian onion

Allium cepa x Allium fistulosum, Allium cepa (Proliferum Group)