June Blooms in my Georgia Garden: American Elderberry

Large flat white flower clusters adorn each stem of the American Elderberry Bush at the edge of our garden today. Sambucus canadensis, known as the American Elderberry is a shrubby plant native to the Southeastern United States. This time of year you can spot the large bloom clusters on plants in ditches and moist spots along the roadside all over Alabama and Georgia. Perhaps you've noticed these large flowers on your commute to work or school and wondered what they are. 

The flower clusters provide nectar for all types of pollinators. When you examine the flowers up close, you find that they emit a nice honey scent into the air. Can pollinators smell that? If they cannot, I wonder how they find flowers that have the sweet nectar they want. 

The flower clusters are followed by small purple-black berries in late summer. The berries are adored by birds and make great wine. They do not taste good to me, but once my little boy ate so many that he vomited. The berries should be cooked before ingested. Little boys will eat anything and must be watched constantly, especially in the garden. I am fortunate that vomiting is the only thing he suffered that day. He is now 14 and since then has eaten very many things that horrify me, but that's a story for another day.

Elderberry loves water but is easy to grow in any garden. Sambucus spreads by suckers and reaches a height of 8-10 feet by the end of summer even if cut to the ground in early spring. Plant it at the back of the border or along the edge of your property, so the size will not be a problem. Looks particularly beautiful on the bank of a pond or stream, if you have one.

Sambucus canadensis can be grown just about anywhere in the United States, since it is hardy in USDA Zones 3-9.

Elderberry is not picky about its site, as it will grow great in either part shade or full soil, as long as soil is rich and water is plentiful. Well that's what it prefers, but I've found it will grow in regular soil where water is not plentiful, but just won't get as large, and will be quite leggy.

Whether you use the flowers and berries yourself or not, consider planting Elderberry in your garden. It is a great plant for wildlife.

Rare White Spider Lilies: Hymenocallis coronaria

This weekend we had the opportunity to visit a local property that is blessed with the very rare Hymenocallis coronaria. Most folks around here call them Shoal Spider Lilies, because they are growing in Flat Shoals Creek. In Alabama this plant is called Cahaba Lilies, named for the Cahaba River where they are growing. There are also some small colonies found growing in the Chattahoochee, Coosa, and Tallapoosa Rivers.

These lilies are a threatened native plant, found growing only in a few places in Alabama, Georgia, and South Carolina. 

Flat Shoals Lilies, as I call them, bloom only once a year. The blooms last 2 or 3 weeks, depending on the weather. This year, they bloomed a little later than normal because our winter was so reluctant to leave.

Hymenocallis coronaria is in the amaryllis family of plants. Large white blooms about 3 inches wide are quite showy and held above tall stems. Foliage is strappy, like a lily.

The Shoal Lilies grow in full sun in the fast-moving water of rivers and large creeks.

The flowers attract a variety of pollinators but are especially enjoyed by the Pipevine Swallowtail.

As with most threatened and endangered species, these lilies are threatened because of us people. The damming of rivers has caused the greatest threat, but pollution of the rivers caused by development, logging, and mining as well as poaching have also played a part in the reduction of Shoal Lily populations. Poaching is when an individual takes a plant or animal and sells it or uses it to his own advantage without consideration for the actual animal or plant itself. When a plant is listed on the threatened or endangered list, one should not dig it to take to his own garden or sell to others. This practice is wrong, and I believe it is punishable by law.

Planarian: Eater of Earthworms and Enemy of the Garden

When rearranging containers at the greenhouse recently, I ran across something unusually icky--a planarian. 

Land Planarian

Planaria are non-parasitic flatworms existing in most parts of the world. Some live in ponds, while others are terrestrial and can be found under flower pots or in other moist places. You've probably seen a planarian before, but might have mistaken it for a slimier than usual earthworm. 

A land planarian is long, flat, and either gray or brown with several black stripes running the length of the body. A planarian can be extremely long. I have seem them almost a foot in length. And, once again, this creature is not native to Georgia, but is thought to be originally from China. 

Planarians have been found in the United States since about 1901. Planarians just love greenhouses, because they provide everything a planarian needs to survive: moisture, humidity, and something to eat. Planarians appear to be dispersed with plants--we might unknowingly bring one home  in a plant we purchased. 

Planarians have a mouth that also serves as an anus. How gross is that?! 

Where might you find a planarian? They like places that are dark and moist, so look beneath container plants, boards, or rocks. If you're lucky enough to experience a heavy rain, they might even be seen on the soil surface, especially under shrubs. If you have a worm bed, look for a planarian attached to an earthworm.

High humidity is vital to the survival of a planarian, and they are seen most often in spring and fall. 

Planarians move about by gliding on a stream of mucus, and if they find themselves up on the leaves of a plant, they can lower themselves using a stream of that mucus. Yuk! They leave a shiny slime trail like that of a snail. You might be thinking, yes, this is grossly interesting, but what does all this have to do with gardening?

Planarians are cannibals and will eat each other. They will also eat slugs, which could be a help to the gardener. Perhaps this is the grossest fact yet--a planarian can even use some of its own tissue for food if necessary.

But what concerns me is that planarians eat earthworms! The earthworm is a gardener's good friend, and I want to protect all my earthworms. A planarian infestation is devastating to a worm bed and reportedly is capable of destroying the earthworm population of an entire farm. 

I won't describe how the planarian turns the earthworm into food, because that's even more yucky than what I've written so far. 

You should not try to destroy this pest by mashing it, since it will regrow from small parts of itself. So if you chop up a planarian, you'll be multiplying it. In the past I've just tossed them into the garbage can, but experts recommend melting them with a spray of orange oil.