Summer Whites

Echinacea purpurea (white cultivar)

Growing up in the South, white clothing was a way to reflect the sun and stay a little cooler when you were outdoors (or at least we thought). I know I had several white dresses; they must’ve been the dickens to keep clean! The phrase ‘summer whites’ and the memory of dressing for the heat came to mind when I realized how many white plants were blooming lately.

I’ll start with some big ones—shrubs that really grab your attention and as well as that of the pollinators. Just finishing up their blooms now are bottlebrush buckeye (Aesculus parviflora) and buttonbush (Cephalanthus occidentalis). This summer buckeye is good in part shade/sun and a popular plant with tiger swallowtail and silver-spotted skipper butterflies as well as bees. The buttonbush likes moist conditions and can tolerate even standing water but it wants a bit of sun. It is popular with the same group of pollinators.

Tiger swallowtail on Aesculus parviflora

Devil’s walking stick (Aralia spinosa) isn’t often planted in gardens but you should look for it now on roadsides (I saw it peeking out on GA 400 going north), hanging out on the sunny edges of woodlands and damp ditches. Its huge inflorescence contains dozens and dozens of tiny cream-colored flowers, attracting butterflies and bees galore.

Devil's walking stick (Aralia spinosa) has many tiny flowers

Smaller shrubs blooming now include summersweet (Clethra alnifolia) and a few of the native hibiscus, including the comfortroot (Hibiscus aculeatus), both of which I mentioned last week. As you might expect, the summersweet has a light fragrance to it; it is a favorite of bees and wasps and small butterflies. I have the cultivar ‘Hummingbird’ which stays lower than the species (it was selected by nurserymen for its compact form). New Jersey tea (Ceanothus americanus) a shrub so small that you might think it is a perennial.  The small white flower clusters are visited by bees, wasps, flies, and beetles.

New Jersey tea (Ceanothus americanus)

I cheated a bit in posting that picture of the white form of purple coneflower (Echinacea purpurea). White is not the natural color, of course. There are still other white flowers to appreciate. Just finishing up are wild quinine (Parthenium integrifolium) and Culver’s root (Veronicastrum virginicum). Wild quinine is great for drier sites while Culver’s root does best in a moister spot. Still blooming are three more perennials tolerant of dry areas: hairy angelica (Angelica venenosa), the first of the thoroughworts (Eupatorium album), and mountain mint (Pycnanthemum sp.). For your moist areas, pair up the Culver’s root with aquatic milkweed (Asclepias perennis), another lover of moist soil.

Culver's root (Veronicastrum virginicum)

Small moth on Asclepias perennis

I’ll finish up with a tree, the very special Franklin tree (Franklinia alatamaha). It’s blooming now at my neighbor’s house, 3 marvelous specimens on a 3-foot slope where the property drops down to street level. Popular with tiger swallowtail butterflies and bees, it is one of our very few summer-blooming trees (sourwood, Oxydendrum arboreum, is another).

Franklinia alatamaha is beloved by bumble bees

If you’d like to add a little summer white to your garden, consider some of these plants. They all look pretty good in the shimmering air of a Southern summer.

The Early Summer Garden

As a wave of 90+ degree temperatures washes over North Georgia where I live, summer is just getting started. We are only 1 month into summer season so I will title this the early summer garden. One day I really should do a daily journal as to what’s blooming, but, in general, I feel like there is a bit of a lull between the end of spring and now so I’m happy to celebrate these blooms (especially since I’m still not going anywhere!).

Perhaps the loudest of flowers is the scarlet hibiscus (Hibiscus coccineus) both in color and form, reaching up to 10 feet tall by the end of the season. Some days there is only one flower, but one day this week there were four at once and I exclaimed to my grandson that there were “so many” of them. He has been dutifully repeating that ever since to whatever item is numerous.

Hibiscus coccineus with bushy St. John's
wort (Hypericum densiflorum) behind

Pineland hibiscus (H. aucleatus)

This week also brought on the delicate blooms of the Southern pineland hibiscus (Hibiscus aucleatus). The contrast of the white bloom with the burgundy center is just exquisite. I added a second plant of this late last year and I am hoping to have fertile seeds this year if I can get them to bloom at the same time.

This is peak time for black-eyed Susans (Rudbeckia sp.) and I have 3 of them going now. I have the popular Rudbeckia fulgida var. sullivantii ‘Goldsturm’ in a pot. The deer nipped one side but it is resprouting and blooming harder than ever. I have another one that is similar that I got from a friend. I think it is plain species version of Rudbeckia fulgida var. sullivantii. The flowering on it is very nice and it does spread a bit. The third species blooming now is hairy black-eyed Susan (Rudbeckia hirta), which is more of a short-lived perennial than the previous ones.

Rudbeckia fulgida 'Goldsturm'

Rudbeckia fulgida species

Another bright yellow is coming from the sundrops (Oenothera fruticosa) and the last of the bushy St. John’s wort (Hypericum densiflorum) which has had a very good year. In the back yard, the large cup plant (Silphium perfoliatum  var. connatum ) is just getting starting while the woodland sunflower (Helianthus divaricatus) sets seed.

Finishing up blooms is an assortment of blue flowers: Stokes’s aster (Stokesia laevis), smooth spiderwort (Tradescantia ohiensis), and American bellflower (Campanulastrum americanum), the last of which I mentioned in this blog several weeks ago. Bash the spiderwort if you want, but it has been fantastic this year. Also continuing has been the native wild petunia (Ruellia caroliniensis); the blooms are smaller but still quite numerous.

Summersweet (Clethra alnifolia)

Angelica venenosa

In the white flower department I have the almost-finished bottlebrush buckeye (Aesculus parviflora) and the newly-opened summersweet (Clethra alnifolia). Going strong is the petite aquatic milkweed (Asclepias perennis) whose pinkish buds open to bright white. In the backyard, angelica (Angelica venenosa) is blooming next to the wild quinine (Parthenium integrifolium). Two doors down, my neighbor’s Franklin tree (Franklinia alatamaha) is starting to bloom, and I walk down to look at it about every other day. My other neighbors’ buttonbush (Cephalanthus occidentalis) just finished up a great display, enticing almost a dozen tiger swallowtails to visit it for days (and restoring my faith that there were some butterflies out there somewhere!).

Tiger swallowtail on buttonbush (Cephalanthus occidentalis)

So if you’re looking for inspiration on what to plant for this time of year, consider some of these. Oh, and how could I forget these – also blooming are the following: another flush on the native honeysuckle (Lonicera sempervirens), anise hyssop (Agastache foeniculum), summer phlox (Phlox paniculata, including my favorite ‘Jeana’), skullcap (Scutellaria incana), and two great annuals, the rosepink (Sabatia angularis) and scarlet sage (Salvia coccinea).

Rosepink (Sabatia angularis)

Mistaken Identity

I briefly mentioned in a 2018 blog that, thanks to a tip from one of my blog readers, I realized that a plant had been misidentified. Comfortroot, or Hibiscus aculeatus, is a perennial native to southeastern Georgia where it grows in wet and mesic pine flatwoods, and edges of savannas, bogs, and ditches. In the past, I have enjoyed seeing it in wet ditches along Highway 16 near Savannah on the way home from a beach trip. Also called pineland hibiscus and prickly rose mallow, the species name aculeatus means 'prickly' and the stems and leaves are harshly scabrous and covered with prickly hairs.

Several friends in the metro Atlanta area grew this and shared plants and seeds. Even the Georgia Native Plant Society grew it and sold it at plant sales. Until we realized in 2018 that it was the wrong plant and were instead growing Abelmoschus manihot, a very similar looking plant. Often called sunset muskmallow or sunset hibiscus, it is more closely related to okra (Abelmoschus esculentus) and is not native to the US.

With similar flowers and similarly-lobed leaves, you can see how one can be confused. While the color of the bloom is a bit more yellow on the sunset muskmallow compared to the creamy color of the comfortroot, it is the crimson-colored stamen column that distinguishes the comfortroot. The sunset muskmallow has a yellow stamen column. Both plants have a crimson stigma at the tip.

As I wrote in 2018, I am now growing the correct species but I hope to help correct the mistaken identity of what we grew before and realized this week that not all my plant friends had heard of the mistake. My new plants came from the Chattahoochee Nature Center which is always a great source of Georgia native plants during spring and fall plant sales. Last year I thoroughly enjoyed watching bumble bees enjoy my new plant. It’s not yet blooming here, but I look forward to another show this year.

Bee on Hibiscus aculeatus

Fruit of the Season

Either this year is a very good year for my alternate-leaf dogwood (Cornus alternifolia) in terms of fruit or I just happened to notice it at just the right time. The fruit sometimes fails to develop and I find aborted clusters on the ground. This year the tree is loaded with tiny fruits in a variety of colors and the birds are having a grand time.

The ripening fruits of alternate-leaf dogwood (Cornus alternifolia)

Around the corner, the blueberries are ripening as well and we are harvesting about a bowl per day. I’m sure the critters are getting a few of those too but there are plenty for everyone. Clearly my Southeastern blueberry bees did a great job with pollination this spring.

Cultivated blueberries (perhaps 'TifBlue')

In the less successful pollination department, only a few paw paws are developing on my 3 trees. It appears that it is the later flowers that are bearing the fruit (I was watching!). Are they blooming before the flies emerge? I’ll have to watch carefully in late August if I want to beat the critters to these tasty fruits; they got them last year.

Doll's eye (Actaea pachypoda)

Paw paw (Asimina triloba)

Viburnum nudum var. cassinoides

Nature provides for a succession of fruit during our seasons: the serviceberries (Amelanchier) are long gone; the wild cherries and plums have just finished up; the viburnums are still green; elderberries and blueberries are ripening; and the beautyberries (Callicarpa americana) have just started to flower.

I’ve written about edible and wildlife-friendly fruit before. Visit these previous blogs for more info: edible fruits in Georgia, fall fruits (including for wildlife), and specifically the paw paw.  

I like to appreciate native plants in all stages of growth: flowers, fruit, foliage, winter garb. Now seemed like a good time to celebrate some summer fruits. Enjoy!