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Plants / Wax Begonia

Wax Begonia

Begonia semperflorens

Also known as: Bedding Begonia, Fibrous Begonia

⚠ïļ Toxic to petsBegoniaceaeVery easy to propagate

A complete guide to growing and propagating Wax Begonia: its care needs, how to take cuttings and root them, how long propagation takes, and how to fix the most common problems.

Wax Begonia care at a glance

☀ïļ Light
Part shade to full sun; tolerates more sun than tuberous begonias.
💧 Water
Water when the top inch dries; dislikes soggy soil.
ðŸŠī Soil
Light, well-draining potting soil.
ðŸ’Ļ Humidity
Tender perennial grown as an annual; hardy only in zones 9-11.
ðŸū Toxicity
Toxic to cats and dogs (ASPCA); soluble calcium oxalates cause mouth irritation and vomiting, with the tubers most toxic.

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Log when you took each cutting, set rooting reminders, and watch your propagation timeline — free on iPhone.

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How to propagate Wax Begonia

Softwood cuttings

Difficulty: Very easyTimeline: Roots in 2-3 weeks; pot on once rooted.
  1. Take a 3-4 inch tip cutting below a node.
  2. Strip the lower leaves and let the cut end callus for an hour.
  3. Insert into moist, well-draining cutting mix.
  4. Keep bright and lightly humid; avoid soggy mix which rots begonias.
  5. Pot on once rooted.

Water (stem cuttings)

Difficulty: EasyTimeline: Roots in 2-3 weeks; pot up once roots reach 1-2 inches.
  1. Cut a 3-4 inch tip below a node and remove the lower leaves.
  2. Set the node in a glass of water in bright, indirect light.
  3. Change the water every few days.
  4. Pot up once roots appear.

Common Wax Begonia problems & fixes

Cuttings rot before they root

Too wet or no airflow. Use a free-draining mix, water sparingly, and vent the humidity cover daily.

Cuttings wilt after taking them

Normal at first — keep humidity high under a dome, out of direct sun, until roots form and perk them up.

Powdery mildew on leaves

Poor airflow and damp foliage. Space plants out, water at the base, and improve circulation.

Track your wax begonia cuttings & propagation in SnipLog

Log when you took each cutting, set rooting reminders, and watch your propagation timeline — free on iPhone.

Get SnipLog →

Toxicity notes are a general guide based on ASPCA-style classifications — if a pet ingests any houseplant, contact your vet. Care needs vary with your home's conditions.