Is Nepeta A Perennial

Select Blue Catmint, also known as Nepeta ‘Select Blue,’ is a wonderful xeric perennial with stunning lavender-blue blooms and attractive gray-green leaves. The first flush of flowers on this perennial bloomer appears in late spring, followed by another later in the summer. This perennial has a long lifespan and is simple to grow, making it a great choice for novices.

Does Nepeta return each year?

Nepeta is a dependable perennial that grows regularly year after year. It is extremely hardy and tolerant of all environmental factors. When the growing circumstances are unsuitable for lavender, catmint can be used as a viable substitute, creating clouds of light blue and mauve in a garden. Nepeta is beneficial for growing in more challenging sections of the garden since it tolerates a wide range of growth circumstances, such as partial shade, dry weather, and drought zones.

While Lavender cannot survive in wetter conditions, Catmint can withstand them; Lavender needs considerably drier conditions, especially in the winter. As a Mediterranean plant, lavender will struggle on heavier, wetter ground. In contrast to catmint, which can grow practically everywhere, it needs to be dry, in well-drained soil, and in the sun. Nepeta is less picky about where it grows because it is native to many different settings. Catmint can thrive in full or partial sunlight, as well as in damp or dry soil. It can practically be grown everywhere and is incredibly tough. It will only not tolerate really soggy terrain. It has a long flowering period and occasionally produces a second flush of flowers if you cut it down.

Nepeta is quite simple to establish once it is planted. The added benefit is that pollinators and bees find it incredibly alluring. On a warm day, a clump will be buzzing with the sound of bees as you pass it. It is a plant that grows well in practically any environment and doesn’t require feeding, which can cause it to become lanky. As its name implies, it is appealing to creatures other than bees. Insert a few sticks to prevent cats from rolling on your Nepeta if you don’t like cats and don’t want that to happen. The sticks will blend in with the plant growth and will be undetectable to cats. If you enjoy cats, you might just want to stand by and observe how crazy they become when they see cat mint, running after it and rolling around.

How is Nepeta prepared for winter?

The ideal course of action would seem to be to prune all of your perennials in the fall. I see why you would want to trim down the perennials and get ready for the upcoming Christmas season—you have lovely fall weather, you’re already raking leaves, etc. Unfortunately, our desires and the needs of our plants are not always the same. Here are some common queries about perennial winterization answered.

Depending on what you have planted in your garden, the process of effectively winterizing your perennials can frequently take place from late October into the first few weeks of spring. The most important thing when cutting perennials for the fall is to take your time.

A plant’s leaves are what give it life, so they should never be entirely clipped until after several hard frosts. It is possible for the plant to absorb the additional energy it requires by letting it naturally wither away. The plant moves its energy from the dying foliage to the roots, where it will be stored for the winter and used to grow a new, attractive plant in the spring. By pruning a perennial too soon in the fall, you run the risk of weakening it and having it perform poorly the next year.

The perennial variety will determine when to prune, but there are primarily 3 categories to consider:

  • After the deadly frost, thoroughly prune the tree.
  • In the spring or fall, prune to the base of the leaves.
  • Never prune in the fall (prune or clean up in spring)

1. After the fall killing frost, totally prune the tree. Although pretty self-explanatory, be aware that this process could happen at any time between mid-October and December.

  • When the foliage turns black, cut the anemone (Anemone x hybrid) to the ground.
  • When the beebalm (Monarda) dies back, cut it to the ground. Occasionally, if powdery mildew is a serious infestation, this may need to be reduced early.
  • Nepeta catmint should be cut down when the foliage turns brown.
  • Cut down Cranesbill (Geranium) when the foliage turns brown.
  • Hemerocallis daylily, cut to the ground as the leaf turns brown.
  • Cut Hosta (Hosta) to the ground once the leaf has withered.
  • Cut the iris (Iris sibirica) to the ground when the leaf withers or leave it for winter interest and trim it back in the spring before the new growth appears.
  • When the foliage dies down, cut the peony (Paeonia) to the ground.
  • Cut to the ground Sedum (Sedum) as the foliage dies back, or leave for winter interest and trim in the middle of winter or in the first few weeks of spring before new growth starts.
  • When the foliage on tall Phlox (Phlox paniculata) dies back, cut it back to the ground.
  • When the foliage on Threadleaf Coreopsis (Coreopsis verticillata) dies back, cut it back to the ground.

2. Completely prune in the spring or fall to the base foliage. A structure’s base is referred to as its basal. In its simplest form, basal foliage is fresh foliage that emerges at a plant’s base.

  • Susan the Black-Eyed (Rudbeckia) For the benefit of wildlife, leave the seed heads up in the winter. In the spring, just wipe off the remaining leaves and cut the stems back to the basal foliage.
  • Campanula (Bellflower): In the fall, prune back to the basal foliage.
  • Coneflower (Echinacea)
  • For the benefit of wildlife, leave the seed heads up in the winter. In the spring, just wipe off the remaining leaves and cut the stems back to the basal foliage.
  • Penstemon (Penstemon digitalis) should be pruned in the fall to the basal foliage.
  • Trim the stems of the Shasta Daisy (Leucanthemum) to the basal foliage in the fall, and then in the spring, only remove any leftover foliage.
  • In the fall, cut back yarrow (Achillea) to the basal foliage.

Avoid pruning in the fall (prune or clean up in spring). Some perennials simply benefit from having more leaf on top in the fall to protect the plant’s crown, but evergreen and woody perennials should never be cut back.

  • Aster (Aster) In the spring, before the emergence of new leaf, totally prune.
  • Before the new leaf emerges in the spring, fully prune the asters.
  • Monarch Butterfly (Asclepias tuberosa)
  • It’s not necessary to wait until spring to cut this back, but because it blooms later than most other perennials, it’s usually simpler to leave it alone so that it can freely reproduce. In order to avoid mistaking the new seedlings for weeds come spring, you’ll need to know where it was in your garden.
  • Although it is not required to wait until spring, Cardinal Flower (Lobelia cardinalis) benefits from the additional leaves on top to help protect the plant’s crown.
  • Camembert Pinks (Dianthus gratianopolitanus)
  • Simply remove the dried flower stalks and any untidy foliage in the spring after they bloom because these have evergreen foliage.
  • Coralbells (Heuchera) have evergreen foliage, so in the fall, cut the flower stems to the base foliage, and in the spring, tidy up the foliage as needed.
  • Invading Phlox (Phlox stolonifera)
  • Simply clean the foliage once the spring blooms have passed since these have evergreen foliage.
  • False indigo (Baptisia australis): Either leave the foliage for the seed heads, or cut it back completely as new growth starts to emerge in the spring by cutting back by a third in the fall.
  • Lavender (Lavandula)
  • Since lavender is a woody perennial, they only need a small amount of shaping trimming in the late fall or early spring. Avoid forcing growth before a frost by not pruning back too early; you want the growth to be hardened off so the frost won’t destroy it.
  • Before the chrysanthemum’s new foliage emerges in the spring, fully prune the plant. Mums benefit from having more leaves on top throughout the winter to shield the plant’s crown.
  • Rogue Sage (Perovskia)
  • Since Russian sage is a woody perennial, only a moderate pruning to shape them in the early spring is beneficial.

There are several exclusions to the guidelines, as there usually are with gardening:

  • Pruning down in the fall, Bearded Iris Although the leaves will still be green, they must be removed since the iris borer’s larvae are found there.
  • Decorative Grasses
  • When ornamental grasses are left uncut after dying back, they produce stunning winter interest in the garden. If you must trim back in the fall, be sure to wait until they have fully died back. Make sure to prune in the early spring before new growth appears if you do so. For information on how to prune the various grass varieties, click here.
  • RosesIf it has to be shaped, leave the rest and only chop down a third. Any severe pruning should be postponed until early spring, right before new growth emerges.

When pruning and cleaning up your garden in the winter, remember to always practice excellent garden sanitation. To try to contain and control the disease, make sure to remove all foliage from the garden and the ground if you know a plant is sick. In order to avoid unintentionally spreading any diseases, you should also routinely clean your pruners with rubbing alcohol or a bleach and water solution.

Although perennials need patience, the reward is definitely worth the effort!

Is Nepeta a perennial herb?

An herbaceous perennial known as N. cataria attracts cats to its loose clump of branching stems and oval to triangular, serrated, greyish-green leaves. Long, dense, terminal spikes bearing tiny violet-spotted white blooms bloom from summer into fall.

Should I prune my nepeta throughout the winter?

Catmint (Nepeta spp. and cvs., USDA Hardiness Zones 38) has a way of lifting my mood. This plant impresses me because it can stand out in even the most hostile circumstances, whether it’s along a cobbled walk in England or in the median planters that line Chicago boulevards. Over the course of several weeks in the summer, the beautiful lavender-blue blossoms appear to shine just as brilliantly in the garden as they do above a hard expanse of concrete and macadam. The easiest catmint delight for me, however, is seeing my cat Boo fall prey to its seductive charm.

Despite the fact that some varieties have been misused to the point of ubiquity, I have a lasting affection for catmint. And it was because of this affection that I wanted to try as many different kinds as I could in order to determine which ones were the greatest. It’s true that when catmints are mentioned, many gardening buddies scrunch up their faces. Now, while I freely acknowledge that I won’t mind if catmint and Knock Out roses (Rosa ‘Radrazz’, Zones 49) never see another planting, I’m not quite ready to give up on this wonderful collection of hardy perennials. This is particularly true of a few particular varieties that stand out for their durability, seemingly endless blooms, and attractive leaves.

Top performers

In terms of bloom time, general habit, disease resistance, and low maintenance requirements, these types were picked as the best.

The most well-liked plant in this genus is undoubtedly “Walker’s Low” (N. racemosa ‘Walker’s Low’, top photo), based on its popularity and the numerous prizes it has won. Walker’s Low is taller than one might anticipate at 30 inches. The name does not represent its size; rather, it relates to the garden in Ireland where it first appeared. One of the most magnificent floral displays ever is produced by luminous blue blossoms that are carried in upward-curving plumes up to 12 inches long. The attractive gray-green leaves are completely hidden by the flowers for several weeks when they are in full bloom in late April. Walker’s Low pairs beautifully with a range of perennials and is essential for softening sharp edges along patios and paths. In my garden, “Walker’s Low” and Japanese roof iris are a favorite combination (Iris tectorum, Zones 59). I adore the way the delicate, billowy catmint contrasts with the broad, spiky iris leaves, as well as the color echo of the lavender-blue blossoms.

The flower and foliage of “Sweet Dreams” (N. subsessilis ‘Sweet Dreams’) are a welcome change from those of other catmints. From early summer to late fall, charming pink blooms are arranged in generous clusters and tastefully complemented with burgundy bracts. By catmint standards, each trumpet-shaped blossom is 1 inch long, which is quite large. The lush green foliage will surprise you if you assume this is simply another catmint with gray-green leaves, especially when it turns colorful in the fall. Despite being a large plant, “Sweet Dreams” remains compact throughout summer. In contrast to other catmints, Japanese catmints (N. subsessilis and cvs.), such as “Sweet Dreams,” like wet soils and partial shade, though they are equally comfortable in full sun. However, deadheading is necessary to prevent “Sweet Dreams” from having a nightmare appearance after the first flush of blooms since the brown, spent flowers persist.

When great gardeners are honored with magnificent plants, it is lovely. Such a plant is called “Joanna Reed” (N. ‘Joanna Reed’), after the late Pennsylvania gardener who discovered it. One of the neatest catmints I’ve ever produced, and this quality secured a perfect score in our testing. It didn’t require deadheading because of its sturdy stems, which never flopped, and because new growth appeared swiftly to cover the wilting flower stems. I find it impossible to imagine “Joanna Reed” without blooms because of the constant display of huge violet-blue flowers that cover the wide-spreading, compact plants from spring into October. Many catmints boast about the attractiveness and unpalatability of their dusty green foliage.

Greek catmint (N. parnassica), according to a short internet search, is more popular in European gardens, but it’s still worthwhile to look for this rare beauty here. Greek catmint is robust and audacious. However, the stems of our test plants only grew to a maximum height and width of 4 feet. Stems up to 6 feet tall are possible. The tint of the fragrant leaves lies midway between green and gray-green. Beginning in early summer and continuing into early October, long spikes of tiny lavender blooms, each less than half an inch long, are densely populated. Greek catmint has the presence to dominate any garden and will cheerfully take all the sunlight you can throw at it.

I believe the catmint “Six Hills Giant” (N. “Six Hills Giant”) is the standard by which all other catmints should be measured. The word “giant” is used to indicate the massive plant size and the extravagant floral display. Long flower spikes attract attention starting in late spring. However, like many catmints, ‘Six Hills Giant’ may start to relax or even recline a few weeks into the flowering period. This was true in our testing. After the initial flower flush, don’t be afraid to bash it back to promote the growth of new, stronger stems. Although it may be difficult to consider giving up blossoms, there will be many more to come. For the ideal display, place “Six Hills Giant” next to virtually anything pink in the garden.

Select Blue (N. faassenii ‘Select Blue’), chosen for its blue flowers, is a superior addition to the group of long-blooming catmints. From midspring to midfall, I don’t think we experienced a day without flowers. The flowers are actually lavender with a darker calyx that gives them a swarthy appearance, despite claims that they are a darker blue than the straight species (N. faassenii). Late during the season, the low, mounded habit remained solid without shearing. For its tenacity and resistance to drought, the xeriscape specialists at High Country Gardens in New Mexico advise “Select Blue,” and we can vouch for its impressive performance in typical garden settings as well.

Getting down to the nitty-gritty of catmint

Catmints are tough, free-flowering perennials that typically like full sun and well-drained soils for growth. However, some are well-liked for xeriscaping because, once established, they can withstand drought. When lavenders are not hardy, they are often referred to as “poor man’s lavender (Lavandula spp. and cvs., Zones 59), which is an acceptable analogy. Here are some additional details concerning this category of plants that you should be aware of.

Catmints are incredibly floriferous from early spring to the end of the growing season. Their unique tubular, two-lipped blossoms identify them as belonging to the mint family. Even when the flowers have faded, colorful calyces still improve the floral arrangement.

Through slicing off a piece of an established clump with a spade, you can proliferate by spring division. There should be numerous young shoots and a sizable root system in each fresh division. Catmint cuttings will take root quickly if they are cut from healthy shoots before the flower buds appear. The cuttings should take several weeks to root if you place them in a moist medium like sand or a peat-perlite mixture.

An essential oil found in the leaves and stems causes cats to exhibit a range of behavioral reactions. Eating the leaves may have calming effects, while rubbing, licking, or biting them creates a momentary high. According to all accounts, cats are especially intoxicated by catmint, or catnip (N. cataria*). You unfortunately have limited options for preventing cats from mauling (and occasionally squashing) your plants. Although most plants will recover fast following an attack, barriers may be your only alternative.

Although Japanese catmints (N. subsessilis and cvs.) prefer moist soils and don’t mind partial shade, wet or soggy areas can be the death knell for most catmints. Catmints frequently appear on lists of deer-resistant plants because they are rarely troubled by disease or pests.

It’s simple to ignore the leaves when there are so many blooms to catch your attention. Many catmint species are known for their fuzzy, gray-green leaves, although some, like Siberian catmint (N. sibirica), have huge, green leaves instead. Finding it difficult to tell if something is catmint? Another distinguishing characteristic of the mint family is square stems.

High fertility merely promotes floppy behavior. Simply shear the older stems down to the young leaves coming from the crown when stems start to flop over and flower output begins to decline. Plants that have been sheared will recover in a few weeks and resume their natural appearance.

Catmint should only be pruned in the spring or once you are certain that the growing season has ended, as it can be ugly in the winter. Even late in the growing season, cutting it back stimulates it to resprout, and the new growth is cold-sensitive. Any potential winter damage is avoided by waiting until spring.