Plan the perfect garden with our interactive tool →

Is Agapanthus the Same Family As Allium?

...
Jupiterimages/Polka Dot/Getty Images

Allium and agapanthus flowers tower over garden beds or make eye-catching accents in sunny gardens. Despite their similarities, they are not from the same botanical family, but both have a treasured place in many gardens.

Taxonomy

...
allium porrum image by Andrzej Włodarczyk from Fotolia.com

Agapanthus and allium are from two different botanical families. Although both belong to the order Amaryllidaceae, agapanthus is a member of the African lily family, or Agapanthoideae, while allium species belong to the widespread onion family, or Allioideae.

Similarities

...
allium 3 image by Falkenauge from Fotolia.com

Both lily of the Nile and garden allium, like the popular Globemaster, (Allium cristophii x macleanii Globemaster, or Allium giganteum Globemaster) produce showy clusters of lavender flowers on 2- to 3-feet tall spikes. They also produce their blooms in summer and are not North American natives, although other members of the allium family are natives.

Differences

...
Agapanthus image by Fraser Cambridge from Fotolia.com

Plants in the allium family produce bulbs. Onions and garlic are both members of the allium family, and the bulbs of garden allium have a distinctive onion-like smell. Agapanthus plants, however, produce thickened rhizomes and not true bulbs. Agapanthus plants are not cold-hardy, unlike allium, and take damage when temperatures drop below 28 degrees Fahrenheit.

  • Allium and agapanthus flowers tower over garden beds or make eye-catching accents in sunny gardens.
  • Both lily of the Nile and garden allium, like the popular Globemaster, (Allium cristophii x macleanii Globemaster, or Allium giganteum Globemaster) produce showy clusters of lavender flowers on 2- to 3-feet tall spikes.

Related Articles

How to Transplant Allium
How to Transplant Allium
What Weed Killer Kills Buckthorn?
What Weed Killer Kills Buckthorn?
Purple Coneflower vs. Black-Eyed Susans for My Garden
Purple Coneflower vs. Black-Eyed Susans for My Garden
What Are the Most Fragrant Perennial Plants for Zone 5?
What Are the Most Fragrant Perennial Plants for Zone...
How to Look After Geraniums
How to Look After Geraniums
How to Transplant Crocus Bulbs
How to Transplant Crocus Bulbs
How to Take Care of a Pixie Lily
How to Take Care of a Pixie Lily
Do Geraniums Need Full Sun All Day?
Do Geraniums Need Full Sun All Day?
How to Water Sedums
How to Water Sedums
Plants in the Onion Family
Plants in the Onion Family
Are Chinese Palm Plants Poisonous to Cats?
Are Chinese Palm Plants Poisonous to Cats?
How to Care for Agapanthus Plants
How to Care for Agapanthus Plants
How to Plant Iris Bulbs in the Fall
How to Plant Iris Bulbs in the Fall
Garden Guides
×