Species ornamental onion
Dark purple flowers clustered on long sturdy green stems, surrounded by green leaves.

ornamental onion

Allium 'Ambassador'

The ornamental onion (Allium 'Ambassador') is an amazing plant for any garden. Its tall, 2-foot umbels of bright purple flowers rise high above its deep green foliage, creating a dramatic statement in any landscape. Not only are the blooms beautiful to look at, but they also release a wonderful garlic-like aroma that adds to the ambiance. Its light purple, round bulbs are often used as an ornamental feature, either in the garden or in a potted display. Plus, the ornamental onion is surprisingly easy to care for and can survive in most climates. For a stunning and aromatic touch to any garden, ornamental onion (Allium 'Ambassador') is an excellent choice.

Cycle:

Perennial

Watering:

Average

Propagation:

Division,Seed Propagation,Bulbils,Offsets

Hardiness Zone:

4 - 8

Flowers:

Purple Flowers In Spring

Sun:

full sun,part sun/part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

High

Maintenance:

Low

Salt Tolerant:

Yes

Care Level:

Medium

watering

Ornamental onion (Allium 'Ambassador') requires consistently moist soil at all times, so it’s important to water it regularly. Depending on environmental conditions, this plant may need to be watered every 4-7 days. Make sure to water it deeply so that water reaches the roots. To determine if your plant needs water, stick your finger into the soil up to your first knuckle—if the soil is dry, go ahead and give the plant a thorough watering. During hot summer months, you may need to increase the frequency of watering to keep the soil moist.

sunlight

Ornamental onion (Allium 'Ambassador') grows best in full sun, meaning that it should receive 6 to 8 hours of sunlight per day. In areas with hot summers, providing partial shade to shade the plant in the hottest parts of the day is advised.

pruning

Ornamental Onion (Allium 'Ambassador') is best pruned in the late fall to early winter, when the foliage has died back. Pruning should be done by removing the old foliage back to the ground. Pruning in this manner helps to keep the plant from becoming too woody. It also helps to keep it looking tidy. Pruning should also be done every 2 to 3 months, as this will also help to keep the plant looking its best.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Allium 'Ambassador' typically starts flowering in late spring, usually in May or June.

Starts Flowering

Allium 'Ambassador' typically starts flowering in late spring, usually in May or June.

Hardiness Map