Adventures of a Transplanted Gardener

Goldenrod is favored by many insects including the tiger swallowtail. Photo by Stibolt
A tiger swallowtail butterfly finds nectar in the 
goldenrod (Solidago odorata) in our meadow. 
 

There's gold in our meadows
by Ginny Stibolt

After a long dry summer, there's gold in our meadows and it will stay there until first frost sometime in December. Yes, that gold is the much under-appreciated goldenrod (Solidago spp).  It has grown here in lovely profusion in the two and a half years since we stopped mowing these areas.  

It spreads by rhizomes and has produced several thick patches in the sunniest areas of the meadows. I think these stands were already established, and that the previous owner mowed them along with the grass. They are not growing on our drainfield meadow, however, and I think it's because all that soil was imported during the installation of the septic system.

The second reason that goldenrod is "golden" is because of all the insects and birds it attracts. What a great addition for your butterfly garden—a beautiful weed that needs no care whatsoever.  It does well in full sun or partial shade and tolerates wet or dry conditions in many types of soil.  Seaside goldenrod has waxy leaves and tolerates salt spray.   

Goldenrod is in the composite family, Asteraceae, the same as sunflowers.  Its florets are grouped in twos or threes and are arranged in various ways along the stem—some in sprays at the top of the stalk, others are located down the stalk in the leaf axils.  Solidago, the genus name, means to make whole.  Native Americans and herbalists used goldenrod to cure many ailments from sore throats to tuberculosis.  

Several species occur in Florida and they tend to hybridize, so definite identification is tricky.  We have sweet goldenrod (S. ordorata) because the crushed leaves smell like anise or licorice.  You can purchase goldenrod if you don't already have it, but probably not at the big box stores. You'll need to find a nursery specializing in native plants or you can buy it online.  (www.plantrealflorida.org)

Bad reputation?

Goldenrod is never the cause of hay fever. It's insect-pollinated, so its pollen is heavy and sticky. The real culprit for fall allergies is the wind-pollinated ragweed (Ambrosia spp) that also blooms in late summer. 

Ragweed lurking in Ginny's meadow. Photo by Stibolt.

Apparently people blamed goldenrod for ragweed's rambunctious pollen generation, because they could see the goldenrod's beautiful flowers and not the inconspicuous ragweed blossoms that often occur nearby.

Ragweed is a native plant and birds will eat its seeds, but there is nothing else good about this plant.  I pull it out when I spot in in our meadows.  Its genus name, Ambrosia, means food for the gods and it was named by Linnaeus, the inventor of our scientific binomial system.  Linnaeus gave all kinds of reasons for assigning the Latinized names, but this one must have been a joke.

<< This ragweed plant (A. artemisiifolia) was about ten inches tall before I yanked it out. Individual plants can range in size from six inches to six feet. Ragweed lurks in meadows or ditches waiting for a chance in invade a newly disturbed site with bare soil where it will grow taller.  

 

Thread-waisted wasp is almost as large as the sunflower.  Photo by Stibolt.

Another source of gold?

Yes, there's another lovely golden late-bloomer in our meadows this year. It's the six-foot tall perennial sunflower (Helianthus maximiliania) with its array of three-inch flowers on six to ten-inch stems all along the stalk. Now in the middle of September, many of them are blooming. I planted the seeds in the spring.  One set of instructions on perennial sunflowers stated that it would be unlikely to flower the first year. I guess "they" didn't consider our long growing season here in northern Florida. Maybe these late bloomers will provide color until frost. I'll let you know.

Next spring, I will transplant some of these sunflowers to areas farther back in the meadows and in places where I can fashion some support for them. Like some of the other species I described in my sunflower column, Maximilian's sunflower tends to flop over in the wind or rain and stays on the ground, but then the flowers down its stalk poke up from there.  While this provides an interesting groundcover, that's not really what I was after. Plus, they've tended to fall into paths and onto other plants.

Helianthus maximiliania lounging around the garden.  Photo by Stibolt.

Like goldenrod, sunflowers attract a wide variety of pollinators while in flower.  Once the seeds set, birds come in for a feast.  Maybe some of the seeds will hit the ground and sprout next year, but if the birds get them all, that's fine with me.

The gold in our meadows, and all the critters it attracts, makes my life richer.  How about you?

Resources:

If you're interested in learning more about native plants, join a local chapter of the Florida Native Plant Society www.fnps.org

For more and up-to-date information on our front meadow and the other meadow areas, ny meadow article.

Read more about Linnaeus and botanical names in A plant by any common name


Ginny Stibolt is a life-long gardener, a botanist, a naturalist, and a garden writer. You may contact her or read more of her articles posted on her website: www.greengardeningmatters.com.

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Adventures of a Transplanted Gardener