Begonia tonkinensis Plant Care

Begonia tonkinensis Gagnep.

Updated · Sources · How we source care data

Begonia tonkinensis is a plant species in the family Begoniaceae. The species is part of the section Diploclinium.

🪴Houseplants🌻Annuals
Water

Every 7–10 days

Light

Bright indirect light, avoid direct sun to prevent leaf scorch

Temp

60–75°F

Humidity

50–80%

At a glance

How do you care for Begonia tonkinensis?

Water Begonia tonkinensis every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect light, avoid direct sun to prevent leaf scorch. It prefers temperatures of 60–75°F (16–24°C) and 50–80% humidity. Fertilize it every 4 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.

What Is the Begonia tonkinensis?

Begonia tonkinensis (Begonia tonkinensis) belongs to the Begoniaceae family within the Begonia genus.

Begonia tonkinensis displays a varies by species, can be upright or trailing growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Begonia tonkinensis produces showy, colorful flowers in various shapes and sizes.

Leaf size: approximately 6 inches.

How Often Should You Water a Begonia tonkinensis?

Begonia tonkinensis requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Begonia tonkinensis Need?

Begonia tonkinensis thrives in bright indirect light, avoid direct sun to prevent leaf scorch. Avoid placing Begonia tonkinensis in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Bright indirect light, avoid direct sun to prevent leaf scorch

What Temperature and Humidity Does the Begonia tonkinensis Prefer?

Begonia tonkinensis grows best at temperatures of 60–75°F. Begonia tonkinensis prefers humidity levels of 50–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Temperature

60–75°F

Humidity

50–80%

What Soil Mix Works Best for a Begonia tonkinensis?

Well-draining, humus-rich soil with added perlite for extra drainage. Good drainage is essential for Begonia tonkinensis to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Begonia tonkinensis?

Feed Begonia tonkinensis every 4 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

Fertilizing

Every 4 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

How Do You Repot a Begonia tonkinensis?

Repot annually in spring to refresh soil and provide space for growth. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Begonia tonkinensis?

Begonia tonkinensis can be propagated through leaf cuttings, stem cuttings, division. Similar propagation techniques also apply to angel wing begonia plant care, which shares the same genus.

Is the Begonia tonkinensis Toxic to Pets and Children?

Toxic (caution)

Reported as toxic in our plant data. Not verified by the ASPCA.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Begonia tonkinensis?

Begonia tonkinensis is susceptible to spider mites, mealybugs, aphids. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Begonia tonkinensis Need?

Begonia tonkinensis grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Begonia tonkinensis as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13a

Keep exploring plants

Begonia tonkinensis is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Begonia genus — compare its care with other Begonia species on PlantoScan.

Begonia is part of the Begoniaceae plant family — browse all Begoniaceae genera and species.

Begonia tonkinensis thrives in bright light and direct sun — see other bright-light plants.

More Begonia Species

Other Begonia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Begonia tonkinensis Gagnep., family Begoniaceae (first published in Bull. Mus. Natl. Hist. Nat. 25: 280 (1919)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Begonia tonkinensis is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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