Propagation
How to propagate Rex begoniaBegonia rex
A practical guide to making more Rex begonia (Begonia rex) at home — the right method, the right time of year, and what to expect.
How to propagate by leaf cuttings
Rex begonia can be propagated from individual leaves. It takes patience — leaves can sit for weeks before anything visible happens — but the success rate is high when conditions are right.
- Choose a healthy, mature leaf (not old and leathery, not brand new and soft). Early spring to midsummer gives the best results.
- Pull the leaf off cleanly at the base or cut it with a clean knife, keeping a small section of petiole (leaf stalk) attached if possible.
- Let the cut end callous over in open air for 30–60 minutes — this reduces the risk of rot.
- Place the cut end into slightly moist cacti or succulent mix (or standard potting mix with added perlite). Lay succulent leaves flat on the surface; push the petiole of other plants 1–2 cm into the mix.
- Do not water for the first week. After that, mist lightly every few days to keep humidity around the leaf without waterlogging the roots.
- Place in bright, indirect light and temperatures above 18 °C. Avoid direct sun.
- Tiny plantlets or roots appear at the base of the leaf after 3–8 weeks. Once a plantlet has a few leaves of its own, separate and pot it up individually.
Other ways to propagate
Stem cuttings
Stem cuttings are the most reliable way to propagate Rex begonia. Each cutting contains a node — the small bump or joint where a leaf attaches — and that node is where new roots will grow.
- Choose a healthy stem with at least one node and one or two leaves. In spring or early summer the plant is growing actively, so cuttings root fastest.
- Cut just below a node using clean, sharp scissors or a knife. A cutting of 10–15 cm with one or two leaves is ideal.
- Remove any leaves from the bottom 5 cm so they don't rot in water or soil.
- Water method: place the cut end in a glass of room-temperature water, keeping the leaves out of the water. Change the water every few days. Move to soil once roots are 2–3 cm long.
- Soil method: dip the cut end in rooting powder (optional), then push it 3–4 cm into moist potting mix. Cover loosely with a clear bag to keep humidity high.
- Keep the cutting in bright, indirect light and warmth (above 18 °C). Avoid direct sun, which wilts the cutting before roots form.
- Roots typically appear within 2–5 weeks. Once new leaves start growing, the cutting is established — treat it like a mature plant.
Track your cuttings
Botanicaly logs each of your Rex begonia plants with its own watering schedule, light reading, and care reminders — so your new cutting gets exactly the same care as the parent from day one. Free on iOS and Android.
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Get the app →Common questions
What is the best way to propagate Rex begonia?
The most reliable method for Rex begonia (Begonia rex) is leaf cuttings. It requires some care but is well within reach of most houseplant owners.
When should I propagate Rex begonia?
The best time is spring to summer, when the plant is actively growing and roots form most quickly.
How long does it take Rex begonia to root?
Expect roots to appear within roughly 28–42 days, given warm temperatures and good indirect light. Division and offset methods are faster because the new plant already has its own roots.
Propagation method based on genus-level horticultural knowledge — accurate for the vast majority of specimens in this species.
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