Rex begonia varieties

Treat Rex begonia as a rhizomatous foliage group, then compare leaves: ‘Silver Queen’ is silvery with green veins and a purple center, while ‘Orient’ has dark green leaves with red undersides.

Plant coveredBegonia rexRex begonia · indoor container

Check the species, variety, group or trade name

Plant names and labels

Taxonomy
Begonia rex is the exact species in this draft, while RHS places retail Rex begonias within the broader rhizomatous houseplant group. That group is not all begonias.
Group
The exact profile describes a tender, evergreen, rhizomatous foliage plant, and RHS groups Rex begonias with other rhizomatous begonias grown for their foliage.

Compare visible shape, pattern and size

How the varieties differ

RHS profiles ‘Silver Queen’ with large silvery leaves, green veins and a purple center, while ‘Orient’ has matt dark-green leaves and brilliant dark-red undersides. The Rex group varies in leaf shape, color and markings.

Change care only for a named difference

Care differences

The cited Rex profiles and RHS group guide point to partial or filtered light, high humidity, free but well-drained watering in summer and a drier surface in winter. The named profiles do not establish different routine thresholds, so foliage choice is the supported differentiator.

Treat an unverified identity as uncertain

Limits of plant labels

Sources