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RBG’s Peony Collection

Peak Interest: June
Laking Garden

One of RBG’s earliest signature collections, the Peony Collection began at Laking Garden in 1949.  

Given its age, RBG’s collection offers a unique history of peonies, displaying a range of cultivars and hybridizer introductions from the 19th, 20th and 21st century. As a result, it is now one of the most diverse and unique peony collections in North America. 

Bloom Watch

With a number of varieties with differing bloom times, there are iris to see for multiple weeks, often late may and early June.

Peony Collection

Current status: Tree peonies are in full bloom at Laking Garden. Early herbaceous peonies are just beginning to bloom.

Updated May 22, 2024.

variety of tree peonies blooming at Laking Garden

Historic Herbaceous Peony Bloom Dates

Note: bloom dates can vary drastically from year to year. Check back for our “bloom watch” updates.

Year Date of Peak Bloom
2023 Week of June 12
2022 Week of June 8
2021 Week of June 7
2020 Week of June 8
2019 Week of June 10
2018 Week of June 5
2017 Week of June 5
  • magenta peony
  • Large Pink Peony With Open Centre
  • View of the lower terrace peony collection. Range of white, pink, and maroon peonies.
  • Peony Do Tell Flower
  • Paeonia (pink)

Plan Your Visit to the Peony Collection

The peony collection is located at Laking Garden, one of RBG’s four formal garden areas. Herbaceous and Itoh peonies are displayed on the lower terrace, and a selection of tree peonies are located near the entrance Kiosk.


  • Garden Admission applies. Single Garden admission available, or purchase Full Garden Admission for access to all open RBG garden areas
  • FREE for RBG Members


Pay and Display parking is in effect, $3/hr to a maximum of $15.

Parking is FREE to RBG members with a RBG parking pass.

Getting to Laking Garden

1221 Spring Gardens Road, Burlington, L7T 1J8

Pay and Display parking is in effect at Laking Garden ($3/hr to a maximum of $15), or free with a Member parking pass.

Parking available in the upper parking lot (off Plains Rd. W.) or in the lower lot (Spring Gardens Rd.). NOTE though finding the upper lot is easier for those on their first visit, accessing the garden from this lot requires walking across a bridge and descending down a winding ramp. For those with accessibility concerns, we recommend using the lower parking lot.

Before departing, have a close look at a map of the area to familiarize yourself with the route; Spring Gardens Rd. (and the two parking lots) is bisected by a train track, and is NOT a through road.

Today’s Hours

Seasonal Hours

  • Closed for the season (Sep 5 to Apr 4)
  • Fri to Sun: 10 a.m. to 5 p.m., Mon to Thurs: CLOSED (Apr 5 to May 29)
  • Mon to Wed: 10 a.m. to 6 p.m., Thurs to Sun: 10 a.m. to 8 p.m. (May 30 to Jun 30)


  • Jun 8 10 a.m. to 3 p.m., last admission 2 p.m.

What’s in Bloom?

Blooms are ever-changing in RBG’s five cultivated garden areas and nature sanctuaries. Check back to learn what’s blooming now or see the blooms calendar for a rough estimation of what to expect in a particular season.

About RBG’s Peony Collection

Introduced in the late 1940s, the Peony Collection was planned by RBG Superintendent James Redman, who organized the plants around the existing the Iris Collection. 

The collection has been laid out not only to display generations of flower diversity within the genus Paeonia, but also to highlight the amazing range of colours of cultivated peonies. 

Peony cultivars can be divided into three main types: herbaceous, Itoh and tree peonies, all of which are featured in RBG’s collection. 

Curator in the Collection

Curator Alex Henderson speaks with Jenn about what makes our peony collection at the Laking Garden unique, and why you should consider growing your own peonies at home. Watch the video to learn more!

Herbaceous Peonies

A large portion of the collection is dedicated to herbaceous peonies featuring single, Japanese, anemone, semi-double, bomb and double flower types. 

Herbaceous peonies are most commonly planted type of peonies in home gardens. They die all the way to the soil surface in winter and resprout in spring 

Tree Peonies

Originating in China, tree peonies have a woody structure, they will lose leaves in winter but the whole plant won’t die down to the ground the way herbaceous peonies do. Most of RBG’s tree peony cultivated are on display near the entrance of Laking Garden 

Itoh Peonies 

Itoh (hybrid) peonies are a cross between tree and herbaceous. They have a woody structure and regrow their leaves in spring. Itoh peonies produce the largest flowers of all the peony types. 

Along with the Iris Collection, the bulk of the Peony Collection is also found on the lower terrace of Laking Garden. These display beds include Itoh and herbaceous peonies. 

  • soft pink peony with the rest of the collection and gazebo in the background
  • Hot pink flowering tree peonies in the foreground. The top of the blue gazebo can be seen in the far distance.
  • white and pink tree peony with golden yellow centre
  • Peony Beds In Blooms With Iris Collection
  • Paeonia 'Kintajio'

The History of RBG’s Peony Collection

Laking Garden is one of RBG’s oldest gardens, and the first to have herbaceous plant collections. The Peony Collection began in 1949 — the original peonies were acquired by the Niagara Parks Commission around the mid-1940s. 

Over the decades since, various individuals have donated peonies and plant from their garden to RBG, including interested hybridizers. The Gardens has also sought new additions for its collection, resulting in a beautifully vast display of peonies that are a tribute to over 70 years of care and enthusiasm. 

An Internationally Significant Collection 

According to the American Public Gardens Association’s (APGA) Plant Collections Network, RBG has one of the most diverse botanical garden peony collections in North America. The extraordinary collection displays a number of peonies now found nowhere else. 

Support Horticulture at RBG

The care and growth of our horticultural collections are possible thanks to the generous support of RBG Members and donors. With a donation to Growing up Green, you can ensure an active, vibrant and healthy future for the children of today and tomorrow through our horticultural and conservation projects.

Royal Botanical Gardens (RBG) is the largest botanical garden in Canada, a National Historic Site, and registered charitable organization with a mandate to bring together people, plants and nature.