from the employee owners at Gardener's Supply Co.

Uncommon Groundcovers

Our staff gardener recommends four plants with a promising future.
Larch

European Weeping Larch

When I think of ground covers, I usually think of herbaceous plants, such as vinca, pachysandra and wild ginger, to name a few. If you are looking to cover a large area and wish to use something different than the old standby ground covers, you may want to consider using woody plants. In our display gardens in Burlington’s Intervale, we have a ground cover garden on a small, relatively steep bank. The garden features low-growing evergreen and deciduous shrubs that display a nice assortment of flowers, foliage and fruit.

Though this was only the garden’s second season, already things are starting to creep and fill the space. I’m sure by next year this area will be a mosaic of greens, whites, pinks, and reds. There are several plants in this garden that are worth mentioning.

Rose Carpet Indigo (Indigofera pseudotinctoria ‘Rose Carpet’) is a low-maintenance ground cover that can be cut right back to the ground in the late winter or early spring (as you might do with a buddleia). In June and July, the plant is covered with dark pink, pea-shaped flowers. The compound, pinnate leaves are covered with small leaflets, giving this plant a delicate presence. Rose Carpet indigo stays just 6-12″ high, with a mature width of 2-4 feet. It performs best in full sun. Hardy in zones 5-8.

One of the shrubs just planted in the ground cover garden this past spring was Pawnee Buttes Sand Cherry (Prunus besseyi). This western U.S. native looks great through the seasons. It has fragrant white flowers in the spring followed by black cherries in the summer. The fruits are attractive to birds and if you can beat the birds, make great jam/jelly. In autumn, the foliage turns a beautiful bronze-red. The attractive silvery bark provides winter interest, when not completely covered by snow. Pawnee Buttes gets to an average of 15-18″ high with a spread of 4-6 feet. Hardy in zones 4-8.

Common Bearberry (Arctostaphylos uva-ursi), also known as kinnikinnick, is another low-growing shrub that looks great in every season. This member of the heath family is native to North America, where it is found on relatively sandy, acidic soils. At maturity, it has an impressive spread of up to 15 feet, but it is a slow grower that stays quite low to the ground, topping out at just 6-12″ high. The shiny, evergreen leaves are small and contrast nicely with the white/pink spring flowers and red berries in the fall. Bearberry has several traditional medicinal uses, as an astringent and as a diuretic to treat bladder problems. Bearberry is an all-around amazing plant! Hardy in zones 2-6.

The last ground cover plant to mention is European Weeping Larch (Larix decidua ‘Pendula’). This larch is often grafted into a tree form or staked so it grows more upright. When left to its own devices, it forms a beautiful ground cover. The delicate, feathery needles turn bright yellow in the fall and are then shed for the winter. Pendula is a fast-grower, so be sure to leave it plenty of space to roam. Hardy in zones 3-6.

So, the next time you are thinking about ground cover options, pass on the more aggressive growers, such as ajuga and pachysandra, and try one of these interesting, low-growing shrubs. I think you’ll be glad you did!

-Sarah Taparauskas,
Staff Gardener
Gardener’s Supply

7 Comments

  1. November 3, 2008    

    I love that indigofera. I have indigofera amblantha. I did not know it also grows as a ground cover. Very versatile and I shall have to look for it.

  2. November 3, 2008    

    This is a great post for me as I have a steep bank that needs groundcover. Thank you, this is very timely.

  3. November 3, 2008    

    I use cascading rosemary as a groundcover. It’s evergreen here in zone 7.

    Is that indigofera deer-resistant?

    Thanks,
    Cameron (Defining Your Home Garden)

  4. November 3, 2008    

    Hi Cameron,
    We’ve looked around a bit and can’t find anyone who says that Indigofera is deer resistant (or not). Since a viable cultural technique for this plant is to cut it right back to the ground in the spring, winter deer browse wouldn’t be a terrible thing. As for summertime munching, I don’t know, but we’ll add to this post if we find more info. – Kathy

  5. November 5, 2008    

    Kathy — thanks for responding. I consider plants that are “deer tolerant” in that they can be munched in winter, but perform as expected in summer as being okay.

    The deer are already foraging in the garden, but not finding anything palatable! They hang out like pet dogs…no fear anymore since most were born here and are used to seeing us.

    Thanks!
    Cameron

  6. November 5, 2008    

    Hello Sarah;

    Do you have a source for those weeping larches?

    George Africa
    The Vermont Gardener
    http://thevermontgardener.blogspot.com
    Vermont Gardens
    http://vermontgardens.blogspot.com
    Vermont Flower Farm
    http://vermontflowerfarm.com

  7. November 5, 2008    

    Hi George,
    We got the plant at our garden center here in Burlington. It’s often available in grafted form, but the un-grafted plants can be found. I suggest checking the nurseries in your area. In the new year, you may find it via mail-order. Try Klehm’s Song Sparrow: http://www.songsparrow.com Another option is to contact a wholesale grower, such as Bizon Nurseries (www.bizonnursery.com), to see if any garden centers in your area are offering it.

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