Begonia maculata: care, propagation & polka dot begonia varieties – Amazing Art’s Post

With its silver-white spotted leaves, red leaf undersides and beautiful flowers, Begonia maculata is a unique addition to your indoor jungle.

Potted spotted begonias
Begonia maculata has truly unique leaves [Photo: Firn/ Shutterstock.com]

You must give the beautiful spotted begonia (Begonia maculata) some tender loving care if you want to enjoy it in all its glory. Read on to find out how to care for the spotted begonia, including tips on watering, pruning, and even how to propagate them.

Begonia maculata: origin, flowers and characteristics

The spotted begonia is a unique, bushy growing member of the begonia family (Begoniaceae). It is a tropical and subtropical flowering plant native to the rainforests of Brazil. This species of begonia has dark green, asymmetrical, lanceolate leaves with silvery white dots and a distinctive contrasting red underside. Its leaves grow from a sturdy stem and have a thick waxy layer to prevent excessive water loss through evaporation. In certain light, they also have a metallic shimmer. Because of its characteristic dots, this potted plant is known as dot begonia or spotted begonia.

Polka dot begonias are monoecious, meaning they have both male and female flowers. Begonia maculata the flowers are white to light pink and grow in drooping clusters. The male flowers are slightly smaller and have yellow stamens, while the female flowers have carpels. The main flowering period is from spring to summer. When grown indoors, spotted begonias grow upright and sometimes hang over something, reaching between 20 and 40 cm wide and 30 to 80 cm tall.

Begonia maculata in flower
The male flowers of Spotted Begonia have bright yellow stamens [Photo: Fabrizio Guarisco/ Shutterstock.com]

Begonia maculata varieties

There are only a couple of types of spotted begonia:

  • Begonia maculata ˈwightiiˈ: This variety has dark green leaves with contrasting silver-white dots and characteristic intense red leaf undersides. It grows to about 40 to 50 cm high and hangs slightly over.
Close-up of begonia leaves
The intense red color on the underside of the leaves sometimes shines through under certain light conditions [Photo: Maritxu/ Shutterstock.com]
  • Begonia x albopicta: This white spotted begonia is actually a cross between Begonia maculata and Begonia olbia.
Begonia Tamaya - Cane Begonia – Verd Houseplants
The leaves of this variety are bright green and densely covered with white spots [Photo: mizy/ Shutterstock.com]

Note: There are other species in Begonia the genus that looks very similar to the spotted begonia. These include the pink-red flowering angelwing begonia (Begonia coccinea) and the red-flowering begonia ‘Lucerna’ (Begonia corallina “Alfalfa”). Begonia ‘Lucerna’ is probably a subspecies of Begonia maculata, but taxonomists still disagree on this issue. You may also encounter a so-called dwarf Begonia maculata, which is sometimes sold under the cultivar name ‘Dotty’. However, this is not a true variety, but rather an artificial, usually chemically inhibited plant that would develop just like the normal species under normal conditions.

Begonia alfalfa leaves
Originally called ‘Corallina de Lucerna’, Begonia lucerna (Begonia corallina) has much wider leaves with more delicate spots [Photo: Firn/ Shutterstock.com]

Where and how to grow Begonia maculata

The spotted begonia prefers a bright place without direct sunlight, as well as a warm climate with temperatures from 20 to 22°C. During the winter months, it can also withstand slightly lower temperatures of around 15 to 18°C. It cannot withstand cold drafts. Not surprisingly, given its origin, this plant also likes high humidity. As a result, it is best to store it in a naturally more humid room, such as a bathroom, rather than a room with dry air.

Spotted begonias like loose, well-draining and humus-rich soil. To plant your begonias, we recommend using a high quality potting soil, such as our Plantura Organic All Purpose Compost. This peat-free soil is an excellent choice because it provides begonias with all the necessary nutrients for the first year after planting. To ensure good drainage and to avoid water sickness, mix in about one-third expanded clay.

Can you keep spotted begonias outdoors? Yes. There is no reason not to place your begonia outdoors as long as it is in a sheltered location without direct sunlight and the temperature does not drop below 15°C at night. In fact, due to outdoor conditions, it is likely to grow better between May and October. Plus, these plants will add a lovely tropical touch to your garden!

Begonia maculata care

Aside from having specific watering requirements, spotted begonias are relatively undemanding and easy to care for.

Pruning, fertilizing and watering begonia maculata

Spotted begonias tolerate neither extreme drought nor waterlogging. Although the root ball can be allowed to dry out slightly between waterings, it should never dry out completely. To check if your begonia needs watering, simply stick your finger a few centimeters deep into the soil – if it feels very dry, it’s time to water your begonia! As mentioned above, spotted begonias love moisture, so you can mist it with water from time to time to help mimic the conditions of a tropical rainforest. Since these plants are susceptible to powdery mildew, it is best to mist around the base of the plant, avoiding the leaves.

Close-up of pink-red begonia flowers
By misting the plant, you can prevent the tips of the leaves from drying out [Photo: nnattalli/ Shutterstock.com]

During the growing season, apply liquid fertilizer once every two to four weeks to provide your spotted begonia with extra nutrients. Our organic Plantura Liquid Houseplant Food is ideal for begonias as it is high in potassium, ensuring strong leaves and compact growth.

Pruning your spotted begonia regularly is a simple maintenance measure and will encourage the plant to grow bushier. You can also easily propagate the begonia with the cuttings. To do this, simply cut your begonia below the nodes of the stem. Here are dormant growth points from which the plant will grow.

Common problems with begonia maculata

It is not always easy to determine why your spotted begonia is not doing well. Here are some common problems and how to fix them.

Leaf fall: An unfavorable location, drafts, temperatures below 15 °C or above 22 °C can cause Begonia maculata to lose its leaves. Here we recommend that you move your facility elsewhere or adjust its current conditions. Waterlogging, dryness and low humidity can also lead to leaf drop. When waterlogging, reduce watering and allow the soil to dry almost completely in the meantime. Misting with water or using a humidifier can help with dryness and low humidity. If the plant is near a radiator, move it elsewhere.

Many spotted begonia leaves
Provided the plant is healthy, the begonia leaves are intensely colored [Photo: Fabrizio Guarisco/ Shutterstock.com]

Not blooming: Under ideal conditions, spotted begonias can bloom for several months even as a potted plant. They tend to flower pretty reliably too, so as long as you meet its requirements you should have no problem getting them to flower. Radical pruning can lead to lack of flowering.

Dry leaf tips: Possible causes of dry leaf tips include low humidity, lack or excess of nutrients and damage caused by pesticides. As already mentioned, you can ensure appropriate humidity by misting or using a humidifier. In case of over fertilization, replant the plant in new soil. To reduce the risk of overfertilization, it is best to regularly apply an organic fertilizer. To avoid nutrient deficiencies, fertilize every two to four weeks.

Begonia leaves with brown tips
There are various reasons why the tips of the leaves of your begonia may start to turn brown [Photo: A-photographyy/ Shutterstock.com]

Overwinter the spotted begonia

In winter, store your spotted begonia in a bright place at a temperature between 15 and 18 °C, preferably not in the immediate vicinity of a radiator. It is also a good idea to reduce watering slightly and continue misting the plant from time to time during this time.

Propagation of begonia maculata

Begonia maculata can be propagated very easily by cuttings. Theoretically, you can propagate this plant all year round, but it is best to do it in the spring. To propagate your begonia, cut off about 10 cm long shoots without flowers below a leaf node. Put the spotted begonia cuttings in a glass of water and place them in a warm, bright place at a temperature of about 20 °C. Once the cuttings have plenty of strong roots, plant them in a pot of high-quality potting soil.

It is also possible to reproduce Begonia maculata using basal cuttings. For this, you need to get a cutting from a basal shoot as close to the stem as possible. Basal cuttings usually have several dormant growth points from which new roots can grow. Simply remove the basal shoot from the main shoot and proceed as you would with any other cutting.

Begonia cutting roots in water
When rooting begonia maculata cuttings, you need to change the water about every three days [Photo: Julia_585/ Shutterstock.com]

Is the spotted begonia poisonous?

Yes, spotted begonias are poisonous because the sap found in all parts of the plant contains oxalic acid and calcium oxalate. Contact with this juice can cause reddening of the skin, irritation of mucous membranes, diarrhea, vomiting and shortness of breath. For this reason, it is important to wash your hands thoroughly after contact with the juice to avoid getting it in your eyes or mouth. Preferably wear gloves. The spotted begonia is also toxic to pets such as dogs, cats, small mammals and birds.

If you love low-maintenance succulents, then panda plants (Kalanchoe tomentosa), also known as pussy ears, can be the perfect addition to your houseplant collection.

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