Painted lady on boneset

“Summer’s lease hath all too short a date.”

– William Shakespeare

Sedum var ‘Autumn Joy’ attracts many species of butterflies and bees

The grand finale of the blooming season is here and while many plants are winding down their bloom period, other plants are still in great form or are yet to put on their show of flowers. There are still many species of pollinators, especially native bees and honeybees, that are active and needful of pollen and nectar sources late in the year. And butterflies, especially those that migrate, are in the same biological boat, needing energy providing nectar sources for their long journeys south. Many annual, perennial and woody plants provide all of them with the food sources they need to accomplish their late season undertakings.        

  

Tiger swallowtail visiting aster flowers
Anise hyssop is a favorite of butterflies and bees
Giant swallowtail on Hyssop at James L. Goodwin State Forest
Agastache ‘Kudos Coral’ -a variety of anise hyssop

Among annuals that are late-season bloomers there are too many to name, but some of the best for pollinators and butterflies include Torenia, zinnias, sunflowers, Lantana, petunia, sweet potato vine, salvias, and sweet alyssum Lobularia maritima. Some of these may still bloom after a light frost, so place them carefully in the garden or planter.

Painted lady on a variety of annual salvia
Bumblebees go inside certain flowers, like this annual Torenia
Painted lady on annual Mexican sunflower Tithonia rotundifolia

Late- blooming perennials for pollinators and butterflies are numerous, and are best when mixed together for easy access for pollinating insects. For example, planting several tall garden phlox, asters, and goldenrods together makes it easy for bees to travel short distances to preferred flowers. In the wild native asters, goldenrods, boneset, snakeroot and woodland sunflowers and Rudbeckia often occur together.

Spotted Joe-pye weed, boneset and goldenrods in their natural setting
Tiny green Halictidae bee on goldenrod
Wool carder bee on calamint

Among late season blooming non-native perennials, obedient plant, guara, Echinacea, veronica , hyssop varieties , sedums, Coreopsis and others are long bloomers that are preferred by the greatest variety of bee and butterfly species. Some may need to be dead–headed as needed to encourage maximum flower development.

Honey bee visiting obedient plant flower

Native perennials for pollinators like black snakeroot, asters, goldenrods, boneset, white snakeroot, Rudbeckia, mountain mint, closed gentians and turtlehead are among those  visited may many species of bees, wasps and butterflies. Turtlehead and closed bottle gentians need a robust pollinator like a bumblebee that is able to barge its way into the flowers and then exit

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Pink variety of turtlehead with bumblebee visitors
Native turtlehead

Spotted bee balm, Monarda punctata is a short-lived perennial that has showy pagoda-like colorful bracts that the small, purple spotted tubular flowers rest upon. Attractive to butterflies and pollinators, blooms last for weeks. The plants have an appearance similar to an illustration in a Dr.  Suess book.

Spotted bee balm
Summer azure on spotted bee balm flower-James L. Goodwin State Forest garden

Black snakeroot, cimicifuga ramose, also called bugbane or Actaea, is a tall late-blooming perennial that is very attractive to bees. It has sweet-smelling white flowers on long spikes that attract bees, flies, flower beetles and small butterflies. Blooming in late September into October, it is a good shade- loving perennial for late flying pollinators .

Cimicifuga sp. snakeroot
unknown moth and honey bee on snakeroot

Among shrubs and trees that bloom late in the year Franklinia, witch hazel, rose-of-Sharon, sweet autumn clematis (a wonderful vine loaded with white sweet scented flowers), paniculata varieties of hydrangea and lespedeza bush clover are good pollen and nectar sources for bees and butterflies. Native witch hazel blooms the latest- starting in early October- and is striking when its peculiar yellow flowers bloom when its leaves are also yellow. This plant may bloom well into November, providing food for those bees and other pollinators that are still active very late in the year. Caryopteris– common name bluebeard- is also frequented by various bees and butterflies

Lespedeza thunbergii bush clover
Native fall blooming witch hazel still in flower in November after leaves have fallen
Bluebeard–Caryopteris--and bumblebees
Sweet autumn clematis
Franklinia tree flowering in late September- early October

Getting outside in both the natural and home landscape will provide moments of thoughtful consideration for the small, engaging things that are taking place around us. Whether insects, flowers or simply the changing of leaf color, there are so many things happening we should try not to miss. One of them has been the magnificent orange sun at dawn and dusk, even though the cause of this phenomenon is heart-rending.  

Sunrise September 15 2020 featured an orange sun due to smoke drifting across the nation from wildfires in the western U.S..

Pamm Cooper