Plant These Perennials Now — September Is Their Secret Best Month

Ornamental plants and flowers.
34 Video Views·Sep 23, 2026  #OrnamentalPlant #FloweringTrees #Gardenflowers

#OrnamentalPlant #FloweringTrees #Gardenflowers #wonderfultrees #Landscapetrees
Think September is too late to plant perennials? Most gardeners treat September as the month to tidy up and put the garden to bed. For the perennials on this list, that's exactly backwards. Spring gets all the glory, but September is the unsung hero of the planting calendar. The soil is still warm from summer, the air is cooler, and the autumn rains are on their way. This is the month when plants focus on what matters most—roots. Instead of wasting energy on top growth, perennials planted now pour their resources into building strong, deep root systems that will power spectacular displays next spring and summer. Plant them now, and they'll have weeks to establish before the ground freezes. By next year, you'll have a garden that's stronger, more resilient, and more floriferous than anything planted in the rush of spring!
In this video, we reveal 7 perennials that thrive when planted in September. This is the secret month that experienced gardeners know and use to their advantage—and now it's yours too!
Today on PlantDo Home & Garden, discover why September is the secret best month for planting perennials!
Why September Is the Secret Best Month to Plant These Perennials!
1) Peonies (Paeonia) – USDA Zone 3-8 – The Queen of Spring That Needs Fall Planting
2) Coneflower (Echinacea purpurea) – USDA Zone 3-9 – The Summer Backbone That Establishes Fast
3) Black-Eyed Susan (Rudbeckia fulgida) – USDA Zone 3-9 – The Cheerful Workhorse of Late Summer
4) Oriental Poppy (Papaver orientale) – USDA Zone 3-7 – The Dramatic Early Summer Bloomer
5) Bee Balm (Monarda didyma) – USDA Zone 4-9 – The Hummingbird Magnet
6) Sea Holly (Eryngium planum) – USDA Zone 4-8 – The Architectural Blue Star
7) Chrysanthemum (Chrysanthemum morifolium) – USDA Zone 5-9 – The Quintessential Autumn Flower
Why You Need to Plant These Perennials This September!