Begonia maculata ‘Double Dot’

A cultivated form of a Brazilian Atlantic Forest species

Begonia maculata ‘Double Dot’ is a horticultural selection of Begonia maculata, a cane species native to southeastern Brazil, especially the Atlantic Forest around Rio de Janeiro.

Wild Begonia maculata grows within warm, humid Atlantic Forest vegetation, where rainfall is regular and surrounding growth breaks up direct sunlight.

Care for cane-forming foliage plants

Repotting

Give Begonia maculata ‘Double Dot’ fresh mix once roots circle the pot or emerge below, water runs through dry channels, the canes become unstable or the mix loses its spring. Restake the plant immediately after repotting, but leave each tie loose enough for the cane to thicken.

Light

A practical home position for Begonia maculata ‘Double Dot’ is beside a large east-facing window, or a short distance from a south or west window behind a sheer curtain. A little early-morning or late-afternoon sun is useful after acclimation.

Watering

water Begonia maculata ‘Double Dot’ when the upper layer of the substrate has dried while the centre of the root ball still feels faintly moist. On the plant, check the centre of the root ball as well as the surface.

Temperature

Warm, even conditions suit Begonia maculata ‘Double Dot’: steady indoor warmth, staying away from chilling temperatures. Hot dry airflow damages soft growth and makes the upper mix dry faster than the roots below.

Fertilising

Feed Begonia maculata ‘Double Dot’ lightly as new spotted leaves and cane sections develop. Apply fertiliser only to a moist root ball and avoid concentrated doses around the fine roots.

If Begonia maculata ‘Double Dot’ looks unwell

Dense white dots are joined by wet-looking marks

Use the packed white pattern as a reference grid. Natural dots remain opaque and separate; a glassy mark fills the green tissue between them and may distort their edges as it grows. Remove that cane leaf, keep nearby blades dry and check the attached node if the mark reaches the stalk.

Compact canes lose lower leaves

Check if the new internodes have widened or the plant recently dried hard. Stretching and small upper leaves indicate too little filtered light; abrupt loss from short firm stems often follows drought, cold or root disturbance. Treat the cause first. Prune above a node once growth is stable again.

Leaves droop although the mix is still wet

Dense foliage can hide wet mix, especially inside a decorative pot. Empty any retained runoff and allow air to return to the roots. Inspect them if the plant stays limp. Remove black roots or a soft stem base and reroot healthy compact cane tips before rot advances.

New leaves have scratches between the round dots

Thrips feeding creates irregular silver streaks, distortion and black specks, unlike the round white spotting. Check folded leaves and flowers, isolate the plant and use sticky cards to follow adult activity. Treat every life stage and repeat as the label directs.

Flower clusters turn grey and collapse

Remove fading flowers before they remain pressed against the densely spotted leaves. Grey fuzz on soft brown stalk tissue shows that decay has entered the cluster. Improve airflow, keep flowers dry and cut the affected stalk back to a firm node; inspect the cane if softness continues below the flowers.

Begonia maculata ‘Double Dot’ is toxic to people and pets

• Keep this plant away from children, cats and dogs.
• The roots and rhizomes contain the highest levels of soluble oxalates, and the sap can irritate skin.
• Chewing may cause mouth irritation, drooling, vomiting or stomach pain. Contact a veterinarian or medical professional if symptoms develop.

Why is it called Begonia maculata?

Begonia honours Michel Bégon. The epithet maculata means spotted and refers to the pale dots on the leaves.

Carl Linnaeus established the genus Begonia in 1753 in Species Plantarum, page 1056.

Giuseppe Raddi first described Begonia maculata in 1820 in Alcune Specie Rare o Nuove di Piante Brasiliane, page 406.