Begonia Silver Moon is an elegant rex begonia with shimmering metallic foliage that almost appears silver under the light. The large leaves are predominantly bright silver with contrasting dark green to charcoal edges and fine dark veining running through the centre. In some lighting, the foliage can take on a soft icy-blue sheen, giving the plant an especially luminous appearance.

The leaves are broad, slightly spiralled and softly ruffled around the edges, with a velvety texture typical of rex begonias. The undersides are usually flushed burgundy-red, adding another layer of colour and interest.

Begonia Silver Moon forms a compact, bushy plant reaching around 20–30cm tall and wide. It is grown mainly for its dramatic foliage, though mature plants may occasionally produce small pale pink flowers.

Its cool-toned foliage makes it a perfect addition to your Blue Hue collection alongside Phlebodium ‘Blue Star’, Epipremnum ‘Exotica’ and Senecio hallianus. The silver tones also contrast beautifully with the darker plants in your Dark Collection.

Detailed Care Guide

Light

Begonia Silver Moon prefers bright, indirect light.

A position near an east or north-facing window is ideal. It can also sit a little back from a brighter window provided it is protected from direct sun.

Too much direct sunlight can scorch the leaves and dull the silver colouring. Too little light may make the foliage appear greener and less striking.

Watering

Keep the compost lightly moist, allowing the top 2–3cm to dry slightly between waterings.

• Water thoroughly, then allow excess water to drain away
• Never allow the plant to sit in water
• Reduce watering during winter

Overwatering is the most common cause of problems with rex begonias and can quickly lead to root rot.

Always water around the base of the plant rather than onto the foliage.

Humidity

Begonia Silver Moon enjoys moderate to high humidity, ideally between 50–70%.

To raise humidity you can:

• Group it with other plants
• Use a pebble tray
• Place a humidifier nearby

Avoid misting the leaves directly, as the soft foliage can develop marks or mildew if it stays wet.

Temperature

This begonia grows best between 18–24°C.

Keep it away from:

• Temperatures below 15°C
• Cold draughts
• Radiators
• Sudden changes in temperature

Compost

Use a loose, airy compost mix that retains a little moisture whilst draining well.

A good mix is:

• 2 parts houseplant compost
• 1 part perlite
• 1 part orchid bark or coco chips

Feeding

Feed every 2–4 weeks during spring and summer using a balanced liquid houseplant fertiliser at half strength.

Do not feed during autumn and winter when growth slows naturally.

Repotting

Repot every 1–2 years in spring if necessary.

Only move to a pot one size larger if:

• Roots are visible through the drainage holes
• The plant dries out very quickly
• The plant has become too large for its pot

Begonia Silver Moon prefers to stay slightly snug.

Common Problems

• Brown crispy edges: Low humidity or underwatering
• Yellow leaves: Usually caused by overwatering
• Brown patches on the leaves: Direct sun or water on the foliage
• Dull or greener leaves: Not enough light
• Soft stems: Root rot caused by soggy compost

Pet Safety

Begonia Silver Moon is toxic if eaten and should be kept away from pets and young children. The leaves and stems can cause irritation and stomach upset if consumed.