Saturday, April 24, 2021

Catmints are almost purrfect perennials

Nepeta 'Six Hills Giant' lines a path to a summerhouse in England

The word perennial comes from Latin and means “throughout the year.” It is also defined as enduring. Varied and versatile, perennials have been part of the landscape for centuries. However, it was legendary British gardener Gertrude Jekyll who is credited with popularizing the perennial or herbaceous border. Her concept was to create groups of plantings that would provide color and interest from season to season, then return the following year to delight once again. She had many perennial pets but singled out catmints as “a plant that can hardly be overpraised.”

Nepeta 'Walker's Low' can reach 30' tall and wide

Of course Jekyll could not have imagined the variety and colors of today’s hybrids when she was gardening in the 1880’s, but she knew a good thing when she saw it. Catmints (nepetas) generally aren’t bothered by pests or disease.  They are deer resistant and hardy in both cold and dry climates. They don’t need fertilizing. And depending on the variety, a vigorous pruning after the first flush of bloom will result in more spikes of eye-arresting color as summer unfolds.

Roses, catmints, lamium and my stone bunny.


Even without all those attributes, catmints would be a valuable addition to almost any garden. Few plants are more versatile or dependable. And few plants are more suitable for inexperienced gardeners because they are reliable hard workers wherever needed. They make charming bedfellows with roses. The frilly grey-green foliage helps hide unattractive canes without detracting from the rose blooms. And they blend well with other perennials from yarrows to ornamental grasses.

'Darcy Bussell' , daylilies and catmint

Catmints are equally happy in a rock garden, tumbling over a wall or softening a formal border. And they can turn a ho-hum walkway into a stunning focal point.


These cultivated catmints should not be confused with their relative catnip (nepeta cataria.) Catnip can be aggressive and unruly. And because kitty can’t resist its essential oil nepetalactone, you could be attracting unwanted visitors – and droppings—to your garden. Some older catmints also appeal to felines, but they generally turn their noses up at most of the newer varieties. 

Pollinators think catmints are bee-youtiful

Nepetas are part of the mint family along with other prized perennials including lambs ears, bee balm and the aromatic herbs lavender, rosemary and thyme. Approximately 250 species of catmints are believed to have originated in regions of Europe and Asia but only a few dozen are available in commerce today. The pedigree of the modern cultivated catmints is somewhat of a mystery, but their usefulness in the garden cannot be disputed.

'Fitzhugh's Diamond' mini rose and 'Walker's Low'

Nepeta 'Walker's Low' (named after a garden in Ireland) is one of the best known catmints along with 'Six Hills Giant', but there are many other dependable varieties to choose from.  

Nepeta racemosa 'Little Titch' is a dwarf plant forming an attractive mound of green foliage with blue flowers. It grows just 8-10 inches tall and because of its compact size is is ideal for a rock garden. 'Purrsian Blue' is tidy, vigorous and fragrant. It is also deer- and rabbit-resistant, but hummingbirds and honeybees love it.

'Purrsian Blue' courtesy Walters Gardens

Last fall I added two pink catmints to the mix. 'Pink Cat' attracts butterflies and is a good choice for containers or the front of the perennial border. 'Whispurr Pink' is supposedly a pollinator magnet and sports minty-scented foliage and plumes of pink flowers. Since they are new additions, I don't know how they will perform, but will report on them at the end of the season.

Nepeta 'Pink Cat', courtesy Riverbend Nursery

Although catmints are touted as well behaved and virtually care free, they need porous soil or they won't thrive if their feet stay wet. If your garden consists of heavy clay, you’ll need to add organic material to help with drainage. Otherwise sitting in water, whether in summer or winter, could be a death sentence for your plants.

Aside from that, catmints are pretty much purrfect. In other words, the cat's meow. 



Dproulx said...

So beautiful and very interesting. I will be planting these this year!

Lynn Hunt said...

Oh good! They are so easy care and will look beautiful! Thank you so much for stopping by!

Sunil Patel said...

Thanks for the write-up on Nepetas, Lynn. I hope I can grow some of these from seed to put in the new border. The perennial herbaceous border is a particular English classic staple of the well-to-do country house, which is why I'm creating one in my garden too.

Lynn Hunt said...

Sunil, I think the catmints will be a nice addition to your glorious garden. The pergola is absolutely gorgeous. How pleased you must be!

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