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The Raker-Roberta's Trial Gardens will be opening July 20th, 2022! Make sure to stop by to visit one of the most comprehensive Trial sites in the Midwest.

See the newest varieties, top performers, and most unique plants the horticulture industry offers.

OPEN: July 20, 2022 - September 2, 2022, Monday - Friday, 9am - 4:30pm  CONTACT: Greg Michalak, Director of Trials, (517) 542-4550

We've got to get back to the Gardens!

Here are some standouts from last summer:

Best overall performance Annual – Begonia I’Conia Scentiment Costa Del Sol (Dummen Orange) This Begonia looked great in all kinds of weather. We had torrential rains and blazing heat and it looked good throughout everything. Visitors really liked the color variation in the large, long-lasting blooms.

Best overall performance perennial – Artemisia Sunfern Olympia (Darwin Perennials) This is the first year for this plant and it sister Arcadia. Olympia was one of our top performers and also a visitor favorite. It looks great in combos as a foliage element or in the landscape.

Best Pollinator friendly Annual – Lantana Havana Sunrise (Dummen Orange) This Lantana was a powerhouse of blooms all summer long. Bees, butterflies, and Hummingbirds were constant visitors.

Best Pollinator friendly Perennial – Agastache Kudos Mandarin (Terra Nova Nurseries) This was planted in 2020 and the whole series performed well. The Dense mounding plants produced dense mounding plants all summer.

Best heat tolerant Annual – Cleome Sparkler 2.0 series (Syngenta Flowers). These plants drew attention from everyone. They were in rows in the middle of the gardens and really stood out. Even after a torrential rain/windstorm, they bounced right back. They were very floriferous and were in bloom all summer.

Best heat tolerant Perennial – Nepeta Cat’s Meow (Proven Winners) Looked good all summer with pale lavender blooms. Once our season started the weather turned hot and dry and this looked great all along.

You can find photos and performance data on all of these and everything in our trials on our Trial Data Page.


We will be hosting our big annual summer event, The Connection!

Join us on July 28th for a day filled with Music, Food, Friends and of course, Flowers! Industry experts will be on hand to talk about the latest and greatest offerings. Be sure to make time to visit.

In addition to our extensive sponsored areas (Landscaped beds, rows, large containers and Hanging Baskets) we have exciting things planned for ou
r Comparison areas. 
  • The Michigan Garden Plant Tour will be Monday through Friday from July 25th through August 5th.
  • Our sponsored areas are full with the latest and greatest offerings from our breeder sponsors.
  • This year in our comparison row trials in the sun, we will have Argyranthemum, Rudbeckia, Snapdragon, Colocasia, and vegetative landscape Petunias. We are also showcasing Silver and White foliage collections and deer resistant varieties. We will also be comparing SunPatiens with other Breeder's selections. 
  • In the Shade, we'll have New Guinea Impatiens.
  • We'll also be showing Bacopa in large containers.
  • In our hanging baskets, we are showing Verbena and also the newest "ready-Made" mixes.
We are adding to our extensive perennial trials with Buddleia, Leucanthemum, Perennial Salvia, and Dianthus. These will be in the ground for three years and are in addition to our existing perennial trials.

Last year, we added videos and much more photography to our social media accounts. Search for "Raker-Roberta's" on to see all of our videos. We'll continue to provide the best multi-media content available.

2022 is the National Garden Bureau's Year Of The Verbena!
Be sure to pick your favorites.


We will not be offering daily lunches or giving greenhouse tours.

Join Us!

Raker - Roberta's Young Plants, Inc., one of Michigan’s premium horticulture suppliers, is proud to present our Raker - Roberta's Garden Trials.