What’s in Bloom

Herbaceous peonies in southeast Michigan bloom from approximately Memorial Day to mid-June, depending on the weather.  Until then, you can still visit other areas of the Arb to see blooming plants spring, summer, and fall.

June 11, 2022

If you haven’t had the chance to make it to see the peonies yet this season, this is your weekend! The flowers are still beautiful, but starting to drop petals. We don’t recommend delaying a visit much longer!

June 7, 2022

The rain knocked some of the blooms down, but there are still plenty of beautiful peonies to enjoy.  Even so, we expect blooms to start dropping more frequently as the days pass, we don’t recommend delaying a visit much longer!

June 3, 2022

We are nearing peak bloom, just in time for our Centennial Celebration.

May 31, 2022

We are at about 30-40% bloom, the warm weather is helping the buds open. 

May 25, 2022

May 23, 2022

The tree peonies should be peaking this weekend. A few more herbaceous peonies may open this week, but most are going to need another week or two to reach peak bloom.

May 20, 2022

A few Herbaceous peonies have started to bloom, but most of our plants have not bloomed yet.

May 17, 2022

Lots of buds on the plants with a few blooms here and there.  Our tree peonies are starting to bloom.

May 14, 2022

We are excited to welcome the first peony to bloom this year! Smouthii (located in bed 23:3E) is a lactiflora x tenuifolia hybrid herbaceous peony first introduced in 1843 in France by growers Smout and van Houtte.

MAY 10, 2022

The peonies have been working hard to produce those amazing blooms we all love. As the peonies grow, you may notice ants on the buds – Many ants are attracted to the sweet sticky nectar that the buds secrete. Contrary to popular belief, ants don’t actually help the peonies bloom- they’re just there to get a tasty snack!

May 3, 2022

A rainy day at the Arb.  The peonies are starting to work their way up, slow and steady.