24 reviews

'Serendipity' Ornamental Onion (Allium)

Ornamental Onion
Ornamental Onion
Ornamental Onion
Ornamental Onion
Ornamental Onion
24 reviews

'Serendipity' Ornamental Onion (Allium)

You must select Size and Ship Week from the drop downs to view correct price for each size and to add products to your cart.

Plants cannot ship to Idaho June through October due to state compliance regulations.
Regular price $32.99
  • Happy Gardener Guarantee
  • Free Shipping $75+
  • Secure payments
  • In stock, ready to ship
  • Inventory on the way
PLEASE NOTE Due to State Laws This Product Cannot be Shipped to the Following States: ID, NV, WA

Full Sun
Part Sun
Height15 - 20 In
Spread10 - 15 In
Current Location:

'Serendipity' Ornamental Onion (Allium) boasts globe-like, rosy-purple flowers mid to late summer that top attractive blue foliage. The upright habit works as a thriller in containers and the landscape. Alliums are charming plants for the rock or herb garden. When the foliage is bruised, it smells like onions since they are in the onion family. Butterflies and honeybees adore the flowers' sweet nectar but deer and rabbits steer clear of this perennial beauty.

  • 15-20 inches tall and 10-15 inches wide at maturity
  • Grow in zones 4-8
  • Plant in part to full sun (4+ hours daily)

Care: Trim stems after it has finished flowering if desired. Fertilize with Proven Winners Continuous Release Plant Food in spring.

Shipping Info:

  • Enjoy free shipping on orders over $75
  • Size at shipping varies by the season and plant
    • 0.65 Gallon plants are 6-12" tall at shipment 
    • Quart shrubs are 5-8" tall at shipment

Please Note: 'Serendipity' Ornamental Onion Allium is restricted and cannot be shipped to the state(s) of ID, NV and WA.

Read our guide to get started with planning a garden


  • Attracts Pollinators
  • Fragrant
  • Resists Deer


  • Height: 15 - 20 In
  • Spread: 10 - 15 In
  • Habit: Upright
  • Bloom Color: Purple
  • Foliage Color: Blue
  • Plant Type: Perennial
Customer Reviews
5.0 Based on 24 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Customer Photos
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Kathleen M.
United States United States

Best flower container centerpiece

These are my favorite new addition to my garden containers! The provide just the right amount of height and look stunning.


Proven Winners Direct

Kathleen, Thank you for sharing! The Serendipity Ornamental Onion is a wonderful choice for providing height and thriller elements to your containers. Enjoy!

Veronica R.
United States United States

Love my new 'Serendipity' Alliums

I am extremely happy with my 'Serendipity' Allium. They came very well packaged with plastic over the pot to keep soil intact. I was impressed with how big, and healthy they were. I planted them straight away and gave them a nice long drink to them settled into their new home. I can't wait until they start blooming. Thanks, Proven Winners! I will definitely be ordering again soon.

Proven Winners Direct 'Serendipity' Ornamental Onion (Allium) Review
Rachel T.
United States United States

Beautiful root balls and well packaged

I ordered these allium in early fall when the blooms were already gone, but the foliage looks very healthy, the root ball is nicely developed, and the shipping was packaged well. Can’t wait for next year to see the blooms!

Recently viewed