Although it is not difficult to grow Rieger begonia indoors, it does require bright light and a reasonable amount of humidity. You can enjoy lovely flowers for months before they start to fade if you can provide the ideal conditions. One of the simplest flowering indoor plants to grow is this one. Here is a quick summary of the care recommendations:
- WATER: Permit soil to dry to a depth of 1 inch (2.5 cm).
- HUITIRE: MEDIUM
- Feeding: Once per three weeks with high-phosphorus fertilizer when in active growth
- LUX: Moderately bright
- SIZE: 6075 degrees Fahrenheit (1624 degrees C)
- SECURITY: Harmful to humans, dogs, and cats
- Easy to Moderately Difficult
For detailed instructions on how to take care of rieger begonia indoors, including care guidelines for propagation, upkeep, and troubleshooting, continue reading.
Can Rieger begonias be used in pots outside?
Long-blooming, extremely cold-sensitive Rieger begonias (Begonia hiemalis) are typically grown as indoor houseplants. Rieger begonias can be cultivated outside in the ground in areas with mild winters. Wax and tuberous begonias were combined to create these perennial plants. When exposed to short daylight hours, the Rieger begonia can bloom at any time of year, though it normally does so in the winter. Rieger begonias can bloom for several months and prefer warm but not very hot temperatures. These begonias often reach heights and widths of 12 to 18 inches.
Put your Rieger begonia in a location with strong indirect light, like an east-facing window. Keep the area around your Rieger begonia between 65 and 70 degrees Fahrenheit during the day, and between 60 and 65 Fahrenheit at night.
- Long-blooming, extremely cold-sensitive Rieger begonias (Begonia hiemalis) are typically grown as indoor houseplants.
- Rieger begonias can be cultivated outside in the ground in areas with mild winters.
Evenly and moderately water your Rieger begonia until the water barely starts to drain from the bottom of the pot. Water the begonia just frequently enough to keep the potting soil moist but not soggy that the soil entirely dries up.
While it is still actively growing, fertilize your Rieger begonia with a water-soluble houseplant or flower fertilizer. Observe the dosage recommendations listed on the fertilizer label.
After the Rieger begonia has finished flowering, trim it back to approximately 3 inches beyond the crown. This will encourage the begonia to develop quickly rather than wilting after blooming.
The Rieger begonia is located in an area with too much direct sunshine if its leaves start to become copper in color. The begonia is receiving too much fertilizer if the leaves turn bluish-green and curl at the margins. The Rieger begonia can tell when the air is too warm because the flowers start to fall off. If you’re planting the Rieger begonia outdoors in a region with mild winters, place the plants 12 inches apart in partial sunshine to light shade. Remember that Rieger begonias can succumb to exposure to temperatures as high as 90 degrees Fahrenheit or as low as 40 degrees Fahrenheit.
The Rieger begonia is quite prone to root rot, so don’t overwater it. Don’t let the begonia sit in water or let the potting soil get too wet. Additionally, you shouldn’t water the plant from the bottom of the pot because doing so would overwater the roots.
How are Rieger begonias grown indoors?
Wax and tuberous begonias were crossed to create Rieger begonias. The end result is stunning glossy foliage covered in a profusion of delicate blooms. On the same plant, an intriguing mixture of single and double-petaled blooms are produced. any space in the house with color and cheer!
Uses
The ideal option for adding brightness to any space. On a tiny table or windowsill, quite decorative. can be exhibited outside in warm weather. A lovely present plant that will make someone smile.
Basic Care Summary
In organically rich, well-drained soil, plant. Throughout the growing and blooming season, keep the soil wet. Every month, apply a balanced liquid fertilizer. For the finest display, take out faded flowers.
Planting Instructions
If the plant was bought in a pot, it is likely already in good potting soil and needs only watering and care for the time being.
Start with a high-quality, commercial potting soil whether you’re potting a flowering plant to bring inside or give as a gift. These are typically cleaner, pest-free, and lighter in weight than topsoil. Many come with a mild starter fertilizer already mixed in.
Choose a container with a drainage hole or be ready to drill one if there isn’t one already.
Fill the planter with potting soil until it is 2 (5 cm) from the rim to prepare it. Either by hand or with a trowel, make a tiny hole in the ground somewhat bigger than the root ball. Place the plant in the hole and firmly pack earth around the roots, leaving the root ball exposed. When all the plants are in their pots, give them a good start by giving the soil a good soak. Plants perform best when placed in bright areas.
Every two years, repot the plant in the same container or one that is just a little bit bigger than the roots’ diameter.
Watering Instructions
The majority of blooming plants grown in pots demand regularly moist yet draining soil. The blossoms may droop and may die if the soil becomes too dry. Use your finger to feel the soil’s moisture level. It’s time to water if the top 2-4 (5–10 cm) of the soil is dry or the plants are starting to wilt.
If at all possible, provide water at the soil level to prevent wetting the foliage. Until water is dripping from the pot’s base, irrigate the entire soil surface. This suggests that the ground is very damp.
Fertilizing Instructions
There are many different types of fertilizers, including granulated, slow-release, liquid feeds, organic, and synthetic. Choose a product with a nutritional balance intended for leafy plants and decide which application technique is most appropriate for the circumstance.
It’s crucial to follow the instructions on the fertilizer box to decide how much and how frequently to feed plants because too much fertilizer can harm plants.
For container plants, slow-release fertilizers are an excellent, hassle-free option. For the right time and application rates, refer to the product instructions.
Pruning Instructions
As the blooms wilt, remove them. Depending on the type of plant, this may also encourage more flowers by keeping the plant neat. Many flowering plants make lovely houseplants once they have finished blooming. To keep the proper size and shape, be sure to prune the foliage. Regular trimming decreases the need for the plant to build a larger root system and fosters the growth of more side branches and flowers. Given that the roots are in a small area, this is significant.
While some plants may naturally bloom again, others may have extremely particular day duration or temperature requirements. To find out what is necessary to promote future flowering, some research may be required. After the blooms have been enjoyed indoors, some plants, such as bulbs or perennials, can be transformed into magnificent garden additions.
How frequently should Rieger begonias be watered?
Try to maintain daytime highs of 60 to 70 degrees Fahrenheit and nighttime lows of 50 to 60 F. When the soil’s surface seems dry to the touch, water the Rieger begonia. Avoid watering or showering the leaves in the evening when they won’t have time to dry out because this can lead to unsightly water spots and fungal illnesses.
A Rieger begonia need how much sunlight?
Pick a spot indoors that receives plenty of bright, filtered sunshine, like the light coming from an east-facing windowsill. To optimize light in the winter, go to the sunniest windowsill you can find. Plant in some shade outside. Plant hardiness zones 9 through 11 of the United States Department of Agriculture are suitable for Rieger begonias.
A Rieger begonia is what kind of begonia?
Beginning in 1883, hybrid begonias known as Rieger begonias (B.hiemalis), sometimes known as Elatior begonias, were created by mating summer-flowering tuberous begonias (B.tuberhybrida) with the infrequently cultivated winter-flowering species, B. socotrana. Otto Rieger, a German hybridizer who introduced a series in 1955, is the source of the name Rieger, which is currently used to refer to all of them. The other name, Elatior begonia, also comes from a strain that was formerly well-known but is now completely forgotten.
In the past, Rieger begonias were known as winter begonias because they bloomed in the winter (hiemalis, by the way, means “winter-flowering”). However, throughout time, the hybridization toolbox expanded to include everblooming begonia species, and today’s most popular hybrids, such as those in the Solenia, Valentine, Dragone, Frivola, and Glory series, are virtually day-neutral and everblooming.
The modern hybrids that can bloom all summer long have taken on a new role as garden plants, though they still do well indoors and are frequently sold as gift plants for indoor use during the winter. Because of their original habit of winter blooming, they were first grown as houseplants, frequently for the Christmas market.
Rieger begonias are closely grouped plants with several stems. Some of them tend to mound, while others trail and work well in hanging baskets. Typically, plants are between 10 and 18 inches (25 and 45 cm) tall and broad. Green or bronze make up the glossy, spherical to heart-shaped leaves. The flowers can be single, semi-double, or double; the latter kind frequently resembles roses in appearance. Although most flowers have a diameter of approximately 1 inch (2.5 cm), others, like those in the Solenia series, can reach a width of up to 3 inches (7.5 cm), which is almost as huge as certain tuberous begonias (B.tuberhybrida). They come in almost all colors—red, pink, white, orange, purple, and so on—with the absence of blue. If bought in the spring, they’ll bloom continuously for months at a time, usually far into the fall. It makes sense why they are growing so popular.
Overwintering Rieger begonias is a challenge. Nurserymen are not overly concerned. They contend that they are annuals. Let them become cold! A non-plantperson would undoubtedly say that. But they are subtropical perennials, not annuals. If you’re anything like me, you won’t want to abandon any plant that can be saved.
The problem is that Rieger begonias don’t generate any tubers to go dormant into, despite having a genetic predisposition to doing so in the fall that they received from their tuberous parents. So, if they do return to a state of complete dormancy, all that happens is that they pass away, which is obviously not what you want!
Rieger begonias can be overwintered, but the best way to accomplish it seems to be a trade secret that experts don’t want home gardeners to know. Certainly, neither gardening books nor the Internet provide much information on it. Therefore, I was forced to learn on my own, losing more Rieger begonias over the years than I care to remember. But I’ve figured them out at last.
What I do is this:
I severely prune my Rieger begonias when I bring them back inside in the fall, about 1 to 2 inches (3-5 cm) off their base. Yes, they are frequently still in full bloom, but just before they would naturally begin to go dormant, they appear to need a jolt. They appear to be forced into survival mode by the rapid attack, and instead of withering away, they begin to grow new stems.
As new stems regenerate, keep them in direct sunlight and water them sparingly, keeping in mind that they won’t require much moisture until they begin to produce new leaves. At this time of year, they appear to favor cool temperatures (45-55F/7-13C). They ought to be making a significant comeback by the New Year. I advise making a few backups at this time, so trim and root a few additional stems. Plant three or four 3-inch (8 cm) stems per 6- to 8-inch (15–20 cm) pot for a healthy, full plant.
Keep the main plant and the cuttings somewhat cool, but under the brightest light you can imagine—after all, it is winter, and sunlight is scarce. When they start to fill out, you can water them more liberally.
Your Rieger begonias ought to be doing great by spring. They don’t mind a little shade, but it is preferable to have full sun indoors, at least during this season. As the days become longer, you can start fertilizing them lightly (they are not heavy feeders).
Then, shortly after, come flowers. You’ve successfully brought your Rieger begonias back into bloom after overwintering them.
Older cultivars were more prone to powdery mildew and frequently required specialized fungicide treatments to keep their leaves healthy. Today’s hybrids have been engineered to be more disease resistant, but just in case, keep them aerated and don’t overwater. If they are impacted, simply remove the sick leaves, and they will typically quickly recover.
Naturally, if you want, you may cultivate these begonias inside during the summer. (They grow pretty nicely that way, but less people appear to do it now.)
Nowadays, the majority of people prefer to use them as garden plants. If so, gradually accustom them to outdoor surroundings until all threat of frost has passed (a week in shade and a week in partial shade before daring full sun). They thrive in partial shade in various climes and prefer lower outdoor temperatures. They are content in full light in my cooler summer region. The Solenia series is a suitable option for hotter locations because it was created to be more resistant to full sun.
Rieger begonias can be grown in the ground or in pots. Additionally, these are no longer fragile “Your grandfather may have grown winter begonias, but they are actually hardy, simple plants. Give them only the essentials “Avoid overwatering annual flowers. Deadheading won’t be necessary because they are essentially sterile, hardly ever produce seeds, and basically self-clean.
How large may Rieger begonia grow?
Begonia socotrana, a rare winter-flowering fibrous-root species, and summer-flowering tuberous begonias were crossed to create the Rieger Begonia (Begonia x hiemalis). Additionally, this hybrid plant is also known as Elatior Begonia and Hiemalis Begonia.
In the majority of containers, Rieger Begonias only grow to be 12–18 inches tall and wide. Beautiful creamy pink, yellow, red, or white flowers on these quickly expanding plants bloom in the winter. Although Rieger Begonias are typically purchased as seasonal plants, with careful care, they can last for many years.
Begonias can they endure the cold inside?
I’ll address some of the most popular queries about overwintering begonias in this section. Ask your question in the comments section if you can’t find it answered here.
Can begonias grow indoors over winter?
Begonias can grow inside throughout the winter, yes. Non-tuberous (also known as fibrous) types are simple to maintain as indoor plants.
The ones with bulbs, on the other hand, will naturally hibernate over the winter. Thus, every leaf and bloom will fall to the ground.
Can you leave begonias in the garden over winter?
If the kind of begonias you have is hardy in your zone or the outside temperature never drops below 50°F, you can leave them in the garden over the winter. If not, they must be taken inside.
How long can you store begonia tubers?
Begonia tubers can be kept in storage for several months. To avoid them drying out and dying, don’t try to keep them in storage for an extended period of time. Even if you don’t get to planting them until later in the summer, it’s ideal to do so every year.
Can you overwinter begonias in pots?
Begonias can be kept in containers over the winter. While tuberous forms should be kept dormant in a cool, dark place, fibrous varieties can be kept as indoor plants.
Begonias may be easily overwintered, and it’s a terrific way to preserve your favorite kinds year after year. And you can begin a collection now that you understand how to store tuberous begonias!
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