Geraniums in good health can self-seed and additional plants often appear nearby, although they are not uncontrollably invasive.
Geraniums with ivy leaves spread out voluntarily, getting anywhere from 30 to 48 inches wide. If you are planting these geraniums in the ground, leave about 36 inches between them. The trailing branches will spread over the sides of the container if the geranium is placed in one, giving it extra room to expand.
Given that zonal geraniums normally grow tall, their spacing should range from 12 to 24 inches, depending on how bushy the variety is.
How big a plant do geraniums get?
Wish your life had a little more carefree beauty? Plant some geraniums, maybe. Geraniums are beautiful and low-maintenance plants that belong in planters, planting beds, and perennial borders.
Geraniums can be divided into two major groups. Zonal, fancy-leaf, ivy, perfumed, and Martha Washington (or regal) varieties of annual geraniums (Pelargonium species), which often only live for a year, are some examples. Perennial geraniums (Geranium species), which bloom continually from spring to summer, combine striking foliage with attractive blooms that emerge intermittently or continuously.
Where to Plant Geraniums
You must be aware of the type of geraniums you have in order to select the ideal planting location. With the exception of the ivy geranium, which thrives in mild shade, most annual geraniums require a location in full sun. On the other hand, depending on the variety, perennial geraniums can grow in either sunlight or shade. In the country’s southern and western regions, both types profit from shielding from the sun during the warmest time of the day.
What Kind of Soil to Use for Geraniums
Geraniums grow best in healthy, well-draining soil, which is ideal for both perennial and annual geraniums. Improve soil drainage and quality when growing geraniums in planting beds by adding 3 inches of Miracle-Gro Garden Soil for Flowers to the top 6 to 8 inches of native soil. When growing geraniums in pots, Miracle-Gro Potting Mix should be used because it is light and fluffy. For the ideal planting medium, combine garden soil and potting soil in equal portions, or fill raised beds with Miracle-Gro Raised Bed Soil.
How to Plant Geraniums
Starting with young plants, such as the premium geraniums from the Miracle-Gro Brilliant Blooms collection*, is ideal (and simplest). Geraniums, both annual and perennial, benefit from warmth, so postpone planting in the spring until all risk of frost has passed. Once the summer heat subsides in the fall, you can also plant perennial geraniums. Try planting perennial geraniums from late fall to early spring in areas with mild winters.
Geraniums range in height from 4 to 48 inches tall and 6 to 36 inches wide, depending on the variety. For information on the recommended spacing for your type of geranium, consult plant tags. Use a pot that is at least 10 inches across for annual geraniums or at least 12 inches across for perennial geraniums when planting geraniums in pots.
Geraniums should be watered thoroughly after planting, giving the root ball and surrounding soil time to absorb the water.
How to Water Geraniums
Check the soil once a week for annual geraniums, and water when the top inch is dry. During their initial growth season, keep newly planted perennial geraniums in continuously moist soil. With the exception of periods of extreme drought, perennial geraniums can typically thrive on rainfall after they are established.
How to Mulch Geraniums
After planting geraniums, cover the area with a 2- to 3-inch layer of mulch to help keep the soil moist and to prevent weed growth and sun exposure. Use Scotts bagged mulch, chopped leaves, pine straw, or another material that is easily obtainable in your area.
How to Feed Geraniums
Your plants receive an excellent starting dosage of nutrients when you start with rich, nutrient-rich soil. However, you should also feed them frequently all season long for maximum results. Apply Miracle-Gro Shake ‘n Feed Rose & Bloom Plant Food to your geraniums a month after planting to give them the extra boost of nutrition they require for magnificent blooms. Make sure you adhere to label directions.
How to Grow Perennial Geraniums
Even in the coldest climates, perennial geraniums don’t require particular care to survive the winter. After the initial flower flush, cutting perennial geraniums back by around one-third can encourage more blooms. Cut stems back as necessary if hardy geraniums like “Rozanne” or “Pink Penny” spread out too quickly and widely. These vining geraniums can have up to two-thirds of their length removed, and the plants will still grow back. To encourage new growth and prevent wilted leaves, prune cranesbill geraniums to 2 to 4 inches height after flowering.
How to Use Geraniums
Annual geraniums are excellent at stealing the show in planters and flowerbeds. Regal geraniums can resist cool weather and form lovely hanging basket plants, making them an obvious choice for planting in the early spring. Ivy geraniums are very stunning. Geraniums with aromatic leaves are strong in containers and form a lovely patio display where the leaves may be stroked and enjoyed.
In gardens with some shade, perennial geraniums add much-needed color and can thrive next to mature trees. While mid-size perennial geraniums go well with lanky shrubs, shorter perennial kinds create beautiful ground covers.
Are you prepared to begin cultivating geraniums? To learn more about a product, to buy it online, or to locate a retailer near you, click on any of the product links above.
Are geranium blooms contagious?
Geraniums have more alternatives than other plants. With more than 300 species, they come in a variety of leaf shapes, bloom color, and even aroma. The size of the flowers varies from a little 6 inches to several feet. The four most common geranium varieties are:
- Zonal geraniums are the well-known geraniums. Zonal geraniums have single or double blooms and come in a variety of colors, including white, pink, red, burgundy, yellow, orange, and purple. They are easy to grow, heat- and drought-tolerant. Numerous hues are available in the cultivars Classic, Tango, and Rocky Mountain.
- Marsha Washington geraniums are another name for regal geraniums. Despite being a delicate type with enormous, multicolored blooms, they flourish when given the right care. They thrive in cooler climates and cannot bloom in the heat of the summer. Ace High, Brown’s Butterfly, Blue Orchid, and Coral Sea are all distinctive varieties.
- Innumerable piles of cascading flowers are produced by ivy geraniums. The glossy leaves have ivy-like characteristics. From the beginning of spring until the first fall frost, the single, semi-double, and double flowers are in bloom. For numerous blooms, choose varieties like Summer Showers, Contessa, and White Mesh.
- Scent-filled, velvety-textured leaves are a feature of scented geraniums. They are a favorite of many gardeners despite not blooming as profusely as other types. Popular scents include those of roses, apricots, apples, and mint, however there are countless varieties. Geranium cultivar names, like Chocolate Mint, Ginger, Lemon Balm, and Lime, frequently allude to their fragrance.
There are many possibilities available if you want to plant a true hardy geranium from the Geraniaceae family. Most have robust, easily-expanding rhizomes and are perennials in Zones 3 to 8. A few of the more well-liked hardy geraniums create wonderful ground cover. Consider growing hybrids like Geranium cantabrigiense and Geranium oxonianum, or cultivars from the genus Geranium macrorrhizum. There are hundreds of cultivars available for these three hybrids.
How close together can geraniums be planted?
Geranium plants have a variety of requirements that will vary depending on where and how they are grown. Geraniums will withstand moderate light levels but require lots of light to bloom indoors. They also require indoor temperatures of roughly 65–70°F (18–21°C) during the day and 55°F (13°C) at night.
Additionally, these plants need to be planted in potting soil that drains properly. Geraniums need a soil mix with equal parts soil, peat, and perlite when grown outdoors. The soil should be wet and well-draining.
Place your geraniums in a location that receives six to eight hours of direct sunlight per day. Wait to plant these plants until the risk of frost has passed because they need to be shielded from the cold.
Plants should be placed 8 to 12 inches (20–30 cm) apart and at roughly the same depth as the pots they were originally planted in. To help plants retain moisture, mulching is also advised.
Are geraniums a space-intensive plant?
Planting geraniums is the ideal method to add splashes of color and vibrancy to your landscape because they come in vibrant shades of red, blue, pink, white, purple, and orange. Geraniums come in a variety of varieties. Although they typically require little upkeep, plants require good air circulation to thrive. Each geranium requires a different level of care, but a good general rule is to put them at least 30 cm apart in well-draining soil.
What occurs if geraniums are planted too closely together?
Kole claims that if you place flowers too closely together, the plants get stressed and more susceptible to disease. Fungus develops if air cannot flow freely and the plants cannot dry out between waterings. The roots may decay. Insects then invade plants that have been stressed out.
In order to maintain a healthy distance between flowers, Level Green personnel will clip some plants as they mature if you decide to place them excessively close together.
How do I get bushier geraniums?
The majority of geraniums’ lanky growth is the result of inconsistent maintenance pruning. Although geraniums are naturally lanky, woody plants in the wild, we prefer them to be compact and bushy in our homes. In order to keep a geranium compact and bushy and prevent it from getting leggy, it needs to be pruned hard at least once a year. The better a geranium can maintain an attractive shape, the more frequently you prune it.
Poor lighting conditions can also cause spindly geraniums. In addition to pruning, increasing plant spacing and placing them in full sun can frequently solve the issue.
Leggy geraniums can also be caused by too much moisture. Geraniums should only be watered when the soil feels dry to the touch and should be planted in well-draining soil. Geraniums can become stunted, sickly, and spindly if they are overwatered.
Do geraniums grow better in the ground or in pots?
Geraniums can be planted in any type of garden soil, but they thrive in neutral or alkaline soil. Grow in flower beds, hanging baskets, or containers that receive direct sunlight.
How to plant geraniums
Choose a peat-free multi-purpose compost with extra slow-release fertilizer when growing geraniums in containers. When paired with other summer bedding plants, geraniums look amazing. They may endure being packed closely together with other sensitive plants if planted in a rich compost and kept well-watered.
Here, Monty Don shows how to grow lavender and pelargoniums in pots for a lovely display:
How quickly do geraniums expand?
For spring flowering plants, geranium seeds should be sown in early- to mid-February.
For many years, geraniums have been a common choice for bedding plants. Cuttings are a frequent way to grow plants. Geraniums can, however, also be raised from seeds. Hybrid geraniums that are grown from seeds have great vigor, heat tolerance, disease resistance, and free blooming.
Growing geraniums from seeds is not too difficult. Geranium seedlings, however, develop slowly. For spring flowering plants, geranium seeds should be sown in early- to mid-February. Approximately 13 to 15 weeks after seeding, flowers begin to bloom. Geraniums from the Elite, Orbit, Maverick, and Multibloom Series are recommended for Iowa. A series is a collection of closely related types that share similar traits like height, spread, and flowering behavior. The only trait that typically varies within a series is the color of the flowers.
Jiffy Mix and Redi-earth are two great soilless mixtures that work well as germination media. Geranium seedling damping-off can be a significant issue during germination. Different species of fungi attack the seedlings and kill them, which is what causes damping-off. Containers used to start seeds should be spotless and have sufficient drainage to deter this. Prior to disinfection, previously used containers should be cleaned in soapy water and dipped into a solution of one part chlorine bleach to nine parts water.
The germination media should be poured into the container to within 1/2 to 1 inch of the top. Lightly firm the medium, completely wet it, and then give it some time to drain. Rows of seeds should be 2 to 3 inches apart, and the medium should cover the seeds by about 1/8 inch. After planting, thoroughly hydrate the soil by immersing the container in water only partially. Remove the container from the water after the surface is damp, then let it drain. The media can alternatively be hydrated with a gentle water spray from a sprinkler made of a rubber bulb or a similar tool.
Use clear plastic food wrap or a clear plastic dome to cover the container to maintain a constant moisture level during the germination process. Place the container in a well-lit area away from the sun. If the covered container is placed in the direct sun, there could be an excessive accumulation of heat. When germination is taking place, the medium’s temperature should be between 70 and 75 degrees F. The seeds should start to sprout in seven to ten days at the right temperature and moisture content.
As soon as the seeds start to germinate, remove the plastic covering. Put the seedlings in a window with natural light or under a light fixture. Fluorescent lights should be turned on for 12 to 16 hours a day and placed no higher than 4 to 6 inches above the seedlings. When the seedlings develop their first true set of leaves, transplant them into separate containers using a well-drained commercial potting mix. Handle the little seedlings by their leaves since the fragile, delicate stems are easy to break. When transplanting, place seedlings at the base of the seed leaves (cotyledons).
Grow seedlings under fluorescent lights for the greatest outcomes. One 40-watt cool white and one 40-watt warm white fluorescent tube can be used in a conventional fluorescent shop light. Due to little light, plants grown in windows frequently grow tall and spindly. Geraniums prefer daytime temperatures of 70 to 75 degrees and nighttime temperatures of 60 to 65 degrees. When the soil surface is completely dry to the touch, water the geraniums thoroughly. Fertilization is probably not required if using a potting mix that is sold commercially and has a slow-release fertilizer. For potting mixes without a slow-release fertilizer, applying a diluted fertilizer solution once every two weeks should be adequate.
Before putting the plants in the garden, harden or acclimatize them to the outdoors for seven to 10 days. First, plant the geraniums in a sheltered, shaded area. Then progressively subject the plants to extended sun exposure times. When there is no longer a chance of a frost, plant the geraniums outside. Early May is typically a good time to grow geraniums outside in central Iowa.
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!