What Are The Best Geraniums

Jolly Bee with Geranium Rozanne (also known as “Gerwat”)
Renardii geranium.
“Mrs. Kendall Clark” geranium pratense
“Wageningen” geranium x oxonianum…
The geranium “Orion”
“Mavis Simpson” geranium
“Kashmir White” geranium clarkei
Geranium ‘Ballerina’ (Cinereum Group)

Which geraniums have the longest bloom times?

For your Garden: Long-Blooming Hardy Geraniums

Plant named “Ann Folkard” (Cranesbill)
Plant named “Elke” (Cranesbill)
Plant named “Mavis Simpson” (Cranesbill)
“Orion” geranium (Cranesbill)
Gardenia patricia (Cranesbill)
Rosane geranium (Cranesbill)
Pink “Sweet Heidy” geranium (Cranesbill)

What geraniums work best in pots?

Gardeners have traditionally favored geraniums. They smell wonderful, are colorful, and are simple to grow. How to cultivate geraniums in your house and garden is provided here!

(Note: This page is about Pelargonium plants, sometimes known as geraniums or storksbills. This is not a page about “hardy geraniums, also referred to as cranesbills.

Geraniums are normally kept indoors to overwinter, even if they may be kept outside throughout the warmer months of the year. In contrast, if given enough light, they can bloom all year long indoors.

Geranium or Pelargonium? A Case of Mistaken Identity

Early in the 18th century, Dutch traders who were traveling through South Africa brought the plants that we now refer to as “geraniums” to Europe. Botanists misclassified these new plants into the same genus because they resembled the hardy wild geraniums that are already present throughout Europe.

Botanist Carl Linnaeus of Sweden included them in the genus Geranium in 1753. Pelargonium, which refers to the long, sharply pointed shape of their seedpod, was used to reclassify these new “geraniums when it was later revealed that they differed from European geraniums in the shape of their petals, the number of stamens, and other features.

However, people still refer to them by their old common name, “geranium,” even if we really mean “pelargonium.”

You can grow geraniums as annual blooms or as indoor plants. They can be kept outside in a sunny area throughout the warmer months of the year (between your local frost dates).
If keeping geraniums as indoor plants, make sure to do so in the late summer or early fall when overnight lows begin to consistently fall below 55F. (13C).
Pay great attention to the size and color of geraniums when purchasing them. Healthy stems and leaves will not be straggly or discolored on top of them or underneath them. A plant with evident insect indications should also be avoided. Mealybugs, whiteflies, and spider mites are typical indoor plant pests.
To prevent root rot, put plants in containers with drainage holes.
When planting in pots, use a well-draining potting mixture rather than heavy, clayey soil. Geraniums dislike being planted in mucky, compacted soil.
Place the plants where they will receive 4-6 hours of sunlight per day for the best bloom.

How to Care for Geraniums

After letting the soil somewhat dry between waterings, water it again well.
Water plants significantly less throughout the winter, but make sure the roots are not completely dried up. Given a time of hibernation throughout the winter, when they consume less water and don’t grow as much, geraniums thrive. For additional overwintering tips, see the section below.
Regularly deadhead spent flowers to promote blooming.
Pinch back the stems to encourage bushiness and prevent legginess.
Fertilize approximately every two weeks throughout the active growing months. Half-strength a fertilizer that is water soluble When the plant should be dormant in the winter, avoid fertilizing.
Repotting geraniums can be done in the spring to promote new growth or if they appear to need revitalization.

Overwintering Geraniums

If they receive plenty of sunlight, geraniums that have spent the summer outdoors can be kept indoors. The sun may not be strong enough in northern regions in late winter to promote buds on some cultivars.
Lift the plants before the first fall frost (you can find your local frost dates here), and use a sharp, clean knife to shapely prune the stems back to about 6 to 8 inches. In the low-sunlight environment they are about to enter, they shouldn’t have to maintain substantial amounts of leaves. A simple technique to increase the number of your plants is to save a few stems for rooting.
Place the “mother plant” in the smallest pot you can find—just big enough to hold the roots—and fill it with ordinary potting soil.
The plants should be kept in the shadow for a week before being moved to a sunny location and kept cool.
Geraniums thrive in temperatures between 50 and 60 degrees Fahrenheit (10 and 16 degrees Celsius) at night during the winter, but they can also withstand lows of 32 degrees Fahrenheit (0 degrees Celsius) and highs of 80 degrees Fahrenheit (27 degrees Celsius), provided they are kept relatively dry.
Cut off all the old leaves when the spring growth begins.

Keeping the new growth alive is the only challenge that can compare to getting it to appear. Here is some assistance with that:

Only offer tiny quantities of water when the leaves begin to droop. Don’t feed or fertilize the plants. These plants must have some downtime.
Pinch back your overwintered geraniums in February if you want them to bloom by Memorial Day. Take the plants outside and move them to beds or pots, as you like, once warm weather returns and all threat of frost has passed.
Containers are ideal for growing the Common or Zonal Geraniums (Pelargonium x hortorum) (as well as outdoors).
Hanging baskets, window boxes, and containers are all extremely popular places to use Ivy-Leaf Geraniums (Pelargonium peltatum).

How to Root Stem Cuttings

The majority of geraniums readily take root from stem cuttings when placed in soil, sand, water, perlite, or another rooting medium.

Make a slanted incision 4 inches below the tip of the stem, above the node where the leaves emerge, with a clean, sharp knife. Cut the grass immediately below a node. Remove all except two or three leaves, any buds, and the stipules that resemble leaves at the base of leaf stalks.
To ensure that the cut end of the stem will seal and not rot, roll the stem cutting in newspaper or place it in the shade for 24 hours.
Place the stem in a wet rooting media container and keep it there for two days in a warm, shaded area. Give the cutting indirect sun after that. Just as needed, moisten the medium.
Apply crushed geranium leaves to small cuts to halt the bleeding.
Scarlet geranium is the flower that speaks of foolishness. More floral meanings can be found here.
You won’t have to worry about those bothersome bugs because geraniums are known to be harmful to Japanese beetles.
Keep geraniums out of the reach of curious youngsters and animals (cats, dogs) as they might cause indigestion or vomiting.

Low light, overexposure, and underwatering are common issues. Yellowing leaves are a sign that you are watering your plants either too little or too much. Try to water the geraniums evenly in this situation, and transfer them to a more sunny location.

What qualities should geranium buyers seek for?

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Modern garden geraniums are related to plants imported from South Africa’s Cape Colony. They can resist challenging growing conditions thanks to their succulent wood and inbred hardiness, and they will blossom all summer long with the least amount of effort. But when buying plants, there are a few things to keep an eye out for to ensure you’re getting top-notch geraniums.

For the pot, the geranium plant should be a good size. It should have a squat, short form, be well-branched, and have zonal, deep green leaves. There should be at least two buds on the plant. The plant should look young and crisp and have a fully formed bloom in the desired color.

Check for insects underneath the leaves. Green algae should not be seen in the soil or containers. Verify if the pot’s bottom has roots that are beginning to emerge. The most crucial thing to do is to look for rot on both lateral and primary branches as well as on the growing ends of the branches. (Plants that exhibit dieback or rot symptoms are likely diseased.)

Avoid plants with deformed flower buds or flower trusses (called “crook neck). This is an inherited trait that will show up on a lot of buds in the future. Furthermore, I’ve discovered that plants with “crook necks” are more vulnerable to disease.

If two variations of a similar color are available, pick the one with the more rounded, less serrated leaf edge. Although the leaf zoning might not be as apparent, the variety will perform better. In your yard and other gardens in the area, look for the varieties that did the best the previous year. Commercial farmers typically cultivate the types that do best and sell well in a specific region.

Give the plants some time to become used to their new environment when you bring them home. They were produced in a greenhouse with controlled humidity and temperature, a particular feeding schedule, and a quiet, wind-free environment. Their growth will probably be temporarily slowed by the new growing conditions and the change in water source, but shortly they will begin to blossom.

There will be some root system disturbance and additional plant adjustment if the plant is taken out of the pot. Geraniums should be planted pot-side up according to several cultural guidelines to prevent disrupting their delicate feeder roots. But because the roots emerge from the bottom of the pot, the plant won’t remain in its pot for very long. The plant will also send out new roots from the nodes (growing points) that have been covered by earth if the pot’s rim is covered by soil when it is buried in the ground.

Geraniums thrive in an area that is bright (excellent, intense sunshine for at least four to six hours per day, not diffused light), well-drained, and well-ventilated. In a well-drained, light soil, each four-inch potted plant should be spaced about a foot apart. The roots decay as a result of persistent “wet feet. The ideal soil is slightly acidic to alkaline. In annual borders, which have comparable requirements, geraniums thrive.

The planter or window box where the pots will be placed must be at least one foot broad and eight inches deep. Avoid using metal containers because they heat up too much in the summer and can damage the roots of your plants. Best planters are made of wood, brick, or the new insulated foam planters with drainage holes.

Geraniums need a medium that is moist but not soggy, therefore get the planter ready as follows: Add a one-inch layer of horticultural charcoal to the bottom. Then, add a layer of German peat moss thick enough so that when the potted geraniums are set, the rims still stay about an inch from the top of the planter. Place a one-inch layer of gravel or pebbles on top of the charcoal.

German peat moss mixed in an equal amount with good garden soil is used to set the plants and fill in the spaces. The top of the planter should be within half an inch of the soil. Spray a little mist of water on the planter until it begins to fill the drainage holes.

Keep in mind to feed and water your plants. The amount of heat, sunlight, and day length all affect how much water is needed. After the plants have been watered, give them a gentle feeding of a soluble 5105 commercial fertilizer once every two weeks to maintain them in top shape all summer.

Which hue of geranium is most resilient?

Johnson’s Blue, one of the original hardy geraniums, is still a favorite and for good reason. Sky-blue flowers appear on spreading mounds of sharply cut leaves from spring to midsummer. This plant is practically pest- and disease-free and needs very little maintenance.

Which geraniums reach the highest heights?

Plants like geraniums or Pelagonium require little care and reward gardeners with a long blooming season from early spring to summer. Depending on the cultivar, vivid flower colors and foliage are available. Geranium plants come in a range of sizes. Let’s examine some of the most popular geranium kinds in more detail.

Ivy-Leaved Geraniums (Pelargonium peltatum)

Because of their trailing habit, ivy-leaved geraniums make a beautiful choice for ground covers, window boxes, or hanging pots. Clusters of delicate blooms in mauve, purple, white, scarlet, or pink are encircled by lobed leaves that have a star form. Geraniums with ivy leaves can spread up to 48 inches and reach heights of 12 to 30 inches.

Zonal Geraniums (Pelargonium x hortum)

The most typical geranium in gardens and residences is the zonal variety. Either planted in outdoor garden beds or in pots indoors or outdoors, this species flourishes. The term “zonal” refers to the zone—a darker band of color—on variegated leaves, which are best recognized for their lush foliage. Single, semi-double, and double flower clusters with vibrant flowers, including red, pink, purple, white, orange, and bicolor variations, are produced by zoning geranium types. Zonal variants can get as tall as wide as 24 inches. The height and width of dwarf zonal geraniums range from 5 to 8 inches.

Regal or Martha Washington Geraniums (Pelargonium x domesticum)

A larger hybrid variety known as “regal geraniums” has erect, bushy growth. Round, somewhat serrated leaves make up the foliage. Regal geranium plants can reach heights of 12 to 48 inches and have clusters of solitary flowers. Purple, red, pink, white, and orange types of flowers have colorful blossoms. Angel geranium (P. crispum), a dwarf cultivar, grows to a height of 9 to 36 inches.

Which geraniums grow year round?

Geraniums actually belong to two different botanical subgroups. The perennial varieties are the real geraniums. The geraniums that most people envision when they go plant shopping are the annual bedding varieties with flowers that resemble lollipops and are mounted on stick stems. The plant genus Pelargonium includes several bedding plants. Ivy geraniums, aromatic geraniums, and Martha Washington geraniums are just a few of the numerous additional geraniums that belong in the Pelargonium genus.

What is the lifespan of geraniums in pots?

My geraniums are no longer blooming. I fed them, but it was ineffective. What’s the issue?

You might be feeding them too much. Pelargoniums, a genus of geraniums native to the Mediterranean, flourish in full sunlight and relatively infertile soil. Overfeeding can be the issue if you have a lot of foliage growth and the plants appear healthy. For a while, stop giving them food. But if your plants are becoming older and their stems are getting lanky, it might be time to propagate. Although they can live much longer, geraniums typically only bloom for two years on average before becoming woody and losing their blooming ability. Thankfully, geranium propagation is simple. Simply cut stem tips with at least two pairs of healthy leaves from a four-inch stem. Cut the stem at the lowest point, dunk it in hormone rooting powder, and then plant it in a mixture of half sand and half peat moss. In around three weeks, repot in ordinary soil after providing adequate watering and covering with plastic to assist preserve moisture. Sticking the cutting in water and letting it grow roots before potting is a simpler method.