Allium or Flowering Onion is a Full Sun Plant.

Part of the You Can Learn Landscaping and Gardening series.
By Ken Brown
June 12, 2005

Allium or FLowering Onions are grown for their huge rounded flowers. The allium comes in a range of colors, purple, white, pink or yellow. Flowering onions can be found in different sizes from the 4 foot tall Giant Onion with 6 inch balls of flowers to a 6 inch variety known as the Lily Leek. Their blooms only last for 2 weeks during the late spring - early summer period.

You should plant in full sun in well drained areas. After the flower is finished blooming you can cut the flower stalk. Leave the leaves on the plant to help feed the bulb for next year. The allium requires little care once the plant is established.

When the leaves turn yellow, you can cut them down at ground level. The allium is a bulb. Each year smaller bulbs grow around the parent bulb. You can gently lift the plant out of the ground and remove the smaller bulbs if the plant becomes crowded. The smaller bulbs can be planted elsewhere or given to friends.

My neighbor claims that the little 4 legged ground squirrels don't like to eat the plant because it is an onion.

Perennial - bulb plant Full sun
Divide every 3 years Requires little care
Grows 1 to 5 feet high Grows 6 to 12 inches wide
Flowers in late spring FLowers in white, purple, pink or yellow

Click on Allium photo to see larger photo.
Alliums require full sun.
Allium is also known as the flowering onion


Click on Flowering Onion photo to see larger photo.
The flowering onion flower can be 6 inches in diameter.
Flowering onion flowers can reach 6 inches in diameter


The allium or flowering onion grows in full sun and can produce wonderful tall plants to 5 feet tall or small 1 foot tall plant. The flowers are in full bloom in late spring and early summer.

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