Strawberries Must Go!

Wild strawberry (Fragaria virginiana) doing what it does best - covering ground.
Photo by Patrick Standish

I thought that I had it all figured out.

But that's what gardening is good at -- Just when you're feeling cocky, it pulls the rug out and shows you who's boss.

At first, I thought wild strawberry (Fragaria virginiana) would be the answer to my prayers. I've been searching for a tough groundcover (ideally native) that would cover all the bare dirt in my beds, block weeds and provide a beautiful green backdrop for all the other perennials, shrubs and trees in the garden.

Wild strawberry definitely excels in the fast groundcover category - like 10-feet-in-every-direction-in-a-single-season fast.

I will admit that wild strawberry foliage can display some excellent, vibrant colors in fall and winter. Photo by Joshua Mayer

Of course, I should have known better.

Just like canopy trees planted next to a house foundation don't stop growing when they hit 10-feet tall, a rampant groundcover doesn't stop expanding when it hits the end of a bed.

In the case of a plant like wild strawberry that throws out long above-ground stolons, it just starts gunning for the lawn or sprawling onto the patio, the sidewalk, the driveway, etc.

Once I realized it would be a daily (hourly?) chore to keep it in bounds, I decided to remove it. Since then, I've spent hours and hours trying to evict wild strawberry from the garden.

I know it's a native here (though I don't remember ever seeing it in the wild). And it's probably a lovely plant in the right circumstances, but I just couldn't keep up with it here.

The wild strawberry fruit is tiny (compared to the typical commercialized hybrid berry that you find at a grocery store, farmers market or pick-your-own farm). Notice all the wiry, red stolons that connect the strawberry plantlets. Photo by espie (on and off)

For those who are wondering, it also didn't yield much fruit. A chipmunk (or chipmunks) got most of the fruit it did produce. And contrary to the rhapsodies you find on the Internet, I did not find the taste of wild strawberry fruit particularly impressive. In fact, I'd say that market hybrid strawberries are much sweeter and juicier. But I might have picked my wild strawberry too soon. I was pretty sure that if I waited another day or two, a critter would beat me to the punch and I wouldn't get to taste it at all.

So where does this leave me in terms of groundcovers?

I'm still trialing a few spreaders:

- Erigeron pulchellus (rose petty)
- Epimedium x perralchicum 'Frohnleiten'
- Packera obovata (golden groundsel)
- Asarum canadense (wild ginger)
and
- Coelestinum conoclinium (blue mistflower).

I'm also thinking about certain reseeding, clumping plants as groundcovers in their own right. Plants like
- Agastache foeniculum
- Baptisia australis
- Gaillardia x grandiflora 
and
- Platycodon grandiflorus)

And a couple of woodies:

- Cephalotaxus harringtonia 'Prostrata'
and
Juniperus virginiana 'Grey Owl'


I know some readers might feel that I'm too picky, that I want it all. Can't I just give up this wild goose chase and blanket my beds in wood chips, compost or pine straw like everyone else?

Nope. Not yet. I haven't given up hope quite yet.

Class of 2016 -- Fragaria virginiana, wild strawberry

Fragaria virginiana, wild strawberry, photo by Walter Siegmund via Wikimedia Commons

Why I'm growing Fragaria virginiana in my garden...

1) It's native to Tennessee and across much of the Continental U.S.

2) According to Michael Kost at the University of Michigan Matthaei Botanical Gardens and Nichols Arboretum, wild strawberry flowers attract pollinators, while the small fruits that follow are edible for both people and wildlife.

3) The Lady Bird Johnson Wildflower Center says that Fragaria virginiana serves as a host plant for the larvae of grizzled skipper and gray hairstreak butterflies.

4) I'm always on the lookout for groundcover candidates -- especially natives. Kost says that F. virginiana can spread relatively quickly, especially in partial to full sun, but that wild strawberry has shallow roots that make it easy to remove the plant if it expands out of bounds.

Do you grow wild strawberry? If so, what has been your experience with this plant?

Ready, Set, Go!

With unusually warm weather through the first half of March (10 to 20 degrees above normal), Spring is bursting out all over!

One of the things that interests me - and one factor for me in plant selection - is the speed with which a perennial, shrub or tree leafs out in the Spring.

Maybe that seems silly, but by the time late February rolls around, I'm desperate for some greenery and signs of life in the garden.

Here are some sights that gladdened my heart:

An expert told me not to count on Agastache rugosa 'Honey Bee Blue' acting as a perennial in Middle Tennessee. But the plant itself begs to differ. All three of the specimens I've planted have been returning reliably for a couple of years.

And this year I even have a few Agastache rugosa seedlings. (Or they could be hybrids, since I'm growing some other Agastache species in the garden. Not sure how easily they hybridize. But this one is growing right next to the other Agastache rugosa plants and its leaves look the same, so I'll call it A. rugosa for now!

Aronia arbutifolia (red chokeberry)

Clematis 'Crystal Fountain'.
I think I've butched the training and pruning of this plant, but it survives and blooms despite me.

'Sugar Tyme' crabapple.
You can see some old, dried apples still hanging on the plant, but the robins and other birds ate quite a bit of the fruit over the winter. That was nice to see.

'Johnny Jump Up' (Viola tricolor) has been self-sowing here and there in the garden ever since I planted it back in 2012.
 

Philadelphus x virginalis 'Natchez' (mock orange)

The rosy buds on the redbud tree (Cercis canadensis) gleam even on a cloudy day.

Physostegia virginia 'Miss Manners' - an obedient plant that really is supposed to be well-behaved.
I planted this little guy last autumn and the basal foliage stayed evergreen through the winter, although it recently seems to have put on some additional new growth.

Echinacea purpurea (purple coneflower), appearing amid leftover stems and seedheads from last year's purple coneflowers that I broke off, crushed and left to 'compost in place'. 

Pycnanthemum tenuifolium (narrow-leaf mountain mint) - I have high hopes for this guy. It looks capable of spreading and functioning as a groundcover, plus it's supposed to have flowers that are appealing to pollinators. This will be the second full year in the garden for this plant (and the two other specimens of P. tenuifolium that I planted at the same time). I'd say this clump is at least four times bigger than it was when I planted it last Spring.

Eryngium yuccifolium (rattlesnake master). This is another perennial that I added to the garden in 2015. It's supposed to need or prefer good drainage, so I'm relieved to see that it survived a typically wet winter in heavy clay soil in a part of the garden that drains even more poorly than most. Don't these adorable early toothed leaves remind you of a Venus flytrap or some other carnivorous plant?

Another contender in the groundcover sweepstakes, this is Teucrium chamaedrys (creeping germander). It stayed more-or-less evergreen through the winter and has started putting on some new growth. I like how the stems trapped fallen leaves, which hopefully will help built and improve the soil over time.

Strawberries! Helpfully appearing next to its ID tag, this charming tripartite leaf belongs to Fragaria virginiana, our native wild strawberry! I planted several specimens of F. virginiana in the garden last autumn. This will be their first growing season in the Garden of Aaron!