Hardy geraniums require hardly any maintenance. Rabbits don’t seek them, while slugs and snails prefer to consume other plants. After their initial flowering, they can be trimmed right back to the ground, and the next summer, they will produce new foliage and additional blooms. Avoid cutting back too soon after flowering because some hardy geraniums have lovely autumn leaves.
Propagating hardy geraniums
Hardy geraniums don’t typically need to be propagated because seedlings may be easily removed from the garden and potted up. In the spring, plants can be lifted and divided. Hardy geraniums can be challenging and time-consuming to grow from seed.
Growing hardy geraniums: problem solving
Geraniums that are hardy are generally trouble-free. However, the geranium sawfly larvae have been known to attack them (Ametastegia carpini). These appear to be 12mm long, small grey caterpillars. They leave unattractive lace-like holes in the leaves after they eat them. In your garden, the more resilient geraniums you have, the more probable it is that they will reproduce.
Since they fall off the leaves when the plant is disturbed, the larvae might be challenging to see. The months of May and September see the most activity; the September generation pupates in the soil and spends the winter there before emerging in the spring to deposit eggs on the foliage. Even though the damage can be extremely unattractive, the plant rarely becomes less vigorous as a result. The following steps could assist in keeping them in check:
- Many geranium sawfly larvae overwinter in the soil, therefore clearing away debris and lightly raking the soil beneath vulnerable plants will expose the larvae to the elements, where they will be killed by frost and devoured by birds and other predators.
- From May on, carefully inspect the undersides of leaves for signs of the eggs and larvae and remove them by hand if possible to prevent numbers from growing.
Hardy Geraniums vs. Pelargoniums
Pelargoniums should not be confused with hardy geraniums. You might be wondering what makes a geranium different from a pelargonium. Similar to some siblings, they are both members of the same plant family, but they could not be more unlike.
Pelargoniums cannot withstand frost, while hardy geraniums can. Pelargoniums are usually treated as annuals and replanted each year, but true hardy geraniums are perennials that grow back every year. Pelargoniums die in the winter.
Prune your Hardy Geraniums
Your sturdy geraniums will look their best and promote new growth if you prune them properly. By correctly pruning your hardy geraniums after the blooming season, you can encourage repeat blooming. The majority of geraniums can be cut back twice in a single season, which allows them to bloom at least three times.
When to Prune
Your hardy geraniums should be pruned in accordance with the season you are in. Rozanne will require various cuts in the spring, summer, and fall. To maintain your blooms rich and healthy, mark your calendar and adhere to our seasonal trimming recommendations.
What tools you need
Your geraniums may be pruned fairly easily. All you’ll need is the ability to prune, a pair of sharp pruners, your favorite mulch, and your favorite gardening gloves. Watch this video to learn more about pruning strategies in detail.
How to prune
You shouldn’t be concerned that pruning your flower’s back will harm her. The majority of hardy geraniums require trimming to promote new growth and prevent them from encroaching upon other plants.
Trim the plant back to within a few inches of the ground or to about an inch above the main stem once the flowering is completed or you find old growth. Remove any brown stems or yellow leaves after that by going inside.
Soon after trimming, more leaves will start to appear. Some resilient geraniums even have the ability to blossom again. Maintaining correct pruning on your plants encourages new development and keeps them from spilling out throughout your landscape.
What pruning advice do you prefer? Share them with us in a comment on our Facebook page!
Should I prune my cranesbill once it blooms?
Among the most common garden perennials are hardy geraniums, sometimes known as cranesbills. And it’s clear why. They require little care and maintenance, are hardy, easy to grow, and tolerant of a variety of environmental factors.
The bloom color ranges from vibrant to subdued violet, blue, pink, magenta, and white hues, and many have appealing veining in a stronger, contrasting hue. Throughout the summer and well into autumn, several types flower nonstop for months at a time, and some even begin blooming as early as late April. When in bloom, the flowers, which are typically rather small, are produced in such great quantities that they almost completely cover the plants.
Numerous species’ hand-like foliage, which exhibits varied quilting, veining, and color blotching, is also very appealing in and of itself. Additionally, because many of the popularly cultivated kinds are low-growing, they make wonderful ground cover plants due to their dense, carpet-like leaf.
They should not be mistaken with the very similarly related pelargoniums, which aren’t and are primarily used as summer bedding plants, as they are cold- and frost-hardy.
Cultivation
There are kinds that can thrive in direct sunlight, light shade, and even pretty deep shadow. They generally thrive in early morning and late afternoon sun, while some, like Geranium sanguineum and Geranium pratense and their variants, grow well in full light as long as the soil has enough moisture.
Hardy geranium varieties
There is at least one hardy geranium for every garden, every gardener, and every circumstance as there are about 70 species and 700 types to choose from!
Here are the top 10 items that the Royal Horticultural Society suggests:
- Ann Folkard, geranium
- (Cinereum Group) Ballerina named Geranium
- Clarkei Kashmir White Geranium
- Red geraniums
- Theodora Mavis Simpson
- Ingersoll Orion
- The Mrs. Kendall Clark geranium
- Wageningen’s Geranium x oxonianum
- Renardii geranium
- Jolly Bee and Geranium Rozanne (Gerwat)
Planting hardy geraniums
Hardy geraniums can be planted at any time of year, but planting in the fall or winter will ensure that the plants take root effectively and provide an abundance of flowers in their first season. For planting from late autumn to late winter, mail-order vendors often offer bare-rooted plants.
Make a hole that is sufficiently large to readily fit the rootball. Fork in a layer of organic material, such as compost or planting compost, at the bottom of the hole.
Place the rootball in the planting hole, adjusting the planting depth until the rootball’s top is level with the soil and the rootball is planted at the same depth as it was growing initially.
Fill the planting hole with the excavated soil after adding more organic matter to it. To maintain soil moisture and aid in weed control, thoroughly water the area around the tree, then sprinkle a granular general feed over the surrounding soil. Finally, put a 5-7.5cm (2-3in) deep mulch of well-rotted garden compost or bark chips around the tree’s root area.
How to care for hardy geraniums
The majority of hardy geraniums are undemanding, low-maintenance plants.
When the weather is dry during the first year, water thoroughly. To maintain healthy plant growth in succeeding years, watering may be required during extended dry spells.
Late spring mulching around the plants will assist retain soil moisture and control weed growth.
Plants may start to seem messy with sloppy growth after the first early flush of blossoms has faded. After the initial flowering, the majority benefit from a trim to freshen the foliage and promote more blooms. To get rid of the outdated, messy growth, just cut the plants with a pair of shears or secateurs, or more forcefully if necessary, to a height of 5-7.5cm (2-3in) above the ground.
Then feed them with a liquid plant food to promote new growth and additional flowering flushes. After each flowering, pruning and fertilizing can be done again to extend the flowering season of many kinds well into the fall.
With the arrival of colder weather in late autumn, most geraniums’ foliage will start to fade. If you trim the plants’ leftover stems and leaves, they’ll grow new, fresh growth the following spring.
Over time, hardy geranium plants expand, spread, and form enormous clumps. These can be chopped into halves or quarters with a sharp spade. This can be done in the spring when they begin to grow or in the autumn. Every three to five years, divide them to maintain good growth and flowering.
How should I re-prune my tough geraniums?
reducing after blossoming After flowering, early-flowering perennials like geraniums and delphiniums are pruned to almost ground level to promote new growth and late-summer blooming. Then, in the fall or spring, these are again pruned.
When should I prune my winter-hardy geraniums?
Geranium pruning can be done in three different ways. Depending on what you want to do, you can choose either one.
Pruning Geraniums After Winter Dormancy
The optimum time to prune geraniums is in the early spring if you put them into dormancy for the winter or if you live in a region where they lose some of their leaves over the winter.
Take off all of the geranium’s brown and dead leaves. After that, remove any diseased stems. Squeezing a healthy geranium stem will feel firm. Cut down the geranium plant by one-third, paying particular attention to stems that have begun to turn woody if you want a less woody and lanky plant.
Cutting Back Geraniums That are Wintered Alive
The best time to prune geraniums is in late fall or right before you bring them inside, if you intend to bring them indoors. If you do not put your geraniums into dormancy for the winter and they remain green in the ground or in containers year round.
Trim the geranium plant back by one-third to one-half, paying special attention to lanky or woody stems.
How to Pinch Geraniums
In order to make the plant grow more bushy and compact, geraniums are sometimes pruned. You can pinch either newly purchased bedding geranium plants or geraniums that have been overwintered. Pinching of geraniums begins in the spring.
When a stem on a geranium plant reaches a few inches (7.5–10 cm), cut off 1/4–1/2 inch (0.5–1.5 cm) of the stem with a sharp pair of scissors, or even with your fingers. Repeat over all stems. The geranium will be forced to produce two new stems off of the original stem as a result, which will result in a bushier, fuller plant. If you prefer, you can keep pinching geraniums all throughout spring.
Geranium pruning is simple and improves the appearance of your plant. You may enjoy your geraniums more now that you know how to prune geranium plants.
When do perennial geraniums need to be pruned back?
You should prune a perennial geranium after it has bloomed all season and starts to wither. This helps the plant store energy for the spring while simultaneously keeping it dormant for the winter. This could need to happen any time between August and late October, depending on your zone. Cut perennial geraniums down to 2 or 3 inches above the soil with a pair of trustworthy shears, ideally at nodes or new growth points. Take out any more flowers or foliage. You’ll have a collection of thick stems that is really ugly. But don’t panic, your blooms will return in full bloom the following spring.
Coral Bells (Heuchera)
Heuchera, often known as coral bells, has vibrant foliage from spring to fall and, in warmer climes, even into the winter. Coral bells shouldn’t be pruned in the late fall whether they are evergreen in your zone or not. Why? Through the winter, their foliage shields their crown. All you need to do is tidy up the plant in the spring to ensure another year of bright color!
Coneflowers (Echinacea)
Long-blooming perennial coneflowers (Echinacea) give bright color from summer till frost, but it doesn’t stop there. With noticeable seed heads, their flowers continue to be interesting long after they have faded. The seeds are adored by birds and other creatures, and they are frequently visited during the fall and winter by goldfinches, blue jays, and cardinals. You can always chop them if you’d prefer, but we advise leaving them standing in winter to bring texture and liveliness to the winter garden!
Black-Eyed Susan (Rudbeckia)
Black-eyed Susans, commonly known as Rudbeckia, share the prominent center cones of coneflowers and can be kept standing throughout winter. In the late fall and winter, you can see birds sitting on their wasted seed heads, which gives the winter garden a little bit of interest and excitement! It won’t harm the plant if you choose to cut them for a neater winter appearance.
*In the fall and winter, we adore how their black dry seed heads appear in dried flower arrangements!
Ornamental Grasses
Even though ornamental grass is merely a perennial, planting it is a proven way to give your garden four seasons of pleasure! The landscape is enhanced by the height, color, movement, and structure of ornamental grasses. The foliage takes on rich gold tones even when it is dormant in the winter and retains its structure until it is chopped down in the spring.
*Dried plumes can be brought indoors for decorating or used to hold snow and frost in the landscape.
Ferns
What makes ferns so great? observing the springtime emergence of their fresh fronds and their summertime unfolding. The fronds give the garden a fluffy texture and rich green, purple, or silver hues. Even though they may lose some of their color in the winter, they continue to offer texture and guard the crown until the spring when fresh fiddleheads sprout. Wait till you see new fronds sprouting in the spring before cutting back old ones!
Milkweed (Asclepias)
As a perennial native plant, milkweed (Asclepias) is essential for year-round pollinator support. Its leaf provides food for Monarch caterpillars in the spring. Clusters of nectar-rich blooms provide food for bees, butterflies, and birds in the summer and early fall. Keep your milkweed standing in the late fall and winter to give nesting pollinators a place to hide. They’ll be grateful to you come spring!
Red Hot Poker (Kniphofia)
Red hot poker, also known as Kniphofia, is a South African native that tolerates heat, humidity, and direct sunlight well. Temps throughout the winter? Despite the fact that some kinds are hardy down to zone 5, not really. To safeguard the crown, we advise leaving the foliage standing all winter. The flower stalks can be cut off, but save the rest of the cleanup for spring!
Cranesbill (Geranium)
Even in the winter, cranesbill (also known as geranium) is a hard-working perennial in the garden. They are semi-evergreen, which means that in moderate areas, they retain their green foliage throughout the winter. To enjoy some extra greenery during the winter, put off cutting the foliage back until April.
*You can always trim back cranesbill if you’d like if it isn’t an evergreen in your zone.
Stonecrop (Sedum)
Stonecrops (Sedum) may resemble indoor succulent plants in appearance, but they are surprisingly winter-hardy plants. Although their foliage and blossoms will wither away in the winter, we don’t advise cutting them. Why? On erect sedums, the dried flower stalks provide texture, color, and food for wildlife. They also have a lovely appearance while holding recently fallen snow!
False Indigo (Baptista)
Due to the sound-absorbing properties of snowfall, the garden is typically silent in the winter. Even though it’s inactive, false indigo (Baptisia) alters that by introducing texture, motion, and noise. Fall sees the replacement of spent blooms with seed-filled black pods that resemble tiny maracas. They make a little music when they rustle in the winter winds.