Begonia burkillii ‘Silver Edge’

The species background of Begonia burkillii ‘Silver Edge’

Begonia burkillii ‘Silver Edge’ is a cultivated selection of Begonia burkillii, a creeping rhizomatous species native from Arunachal Pradesh in north-eastern India to northern Myanmar. The species occurs from low foothills to roughly 1,200 m in Arunachal Pradesh.

Leaf and rhizome care for foliage plants

Support, pruning, handling and leaf care

Do not stake the petioles of Begonia burkillii ‘Silver Edge’. Guide its surface rhizome across the mix so new leaves have room to form, and divide only a rooted section with a live bud.

Light

Keep Begonia burkillii ‘Silver Edge’ close to an east or north-east window, or close to a south or west window behind a light curtain. Acclimate it gradually, since sudden intense exposure means the upper leaf surface bleaches or scars and the rhizome dries unevenly.

Watering

Check Begonia burkillii ‘Silver Edge’ below the surface and water after the upper layer of the substrate has dried while the shallow root zone below remains faintly moist. Its feeder roots need moisture, while the rhizome itself needs an exposed, airy surface.

Substrate and roots

Begonia burkillii ‘Silver Edge’ depends on a sideways-growing rhizome and a modest mat of delicate feeder roots. Keep the rhizome of the plant uncovered and give its growing end open surface space.

Humidity and airflow

Ordinary room air may be enough if new leaves expand normally; moderate to high humidity usually reduces dry edges. Dry heated air damages the leaf margins; moderate to high humidity with open spacing supports steadier leaf expansion.

Repotting

Begonia burkillii ‘Silver Edge’ needs a new pot once the rhizome reaches the rim, roots fill the shallow pot, water moves unevenly or the substrate has compacted. Preserve the fine roots beneath each rhizome section and avoid breaking the plant into unrooted pieces.

What to check on Begonia burkillii ‘Silver Edge’

Near-black margins look brown at the edge

The broad dark frame is a normal feature of Begonia burkillii ‘Silver Edge’ when it remains firm and evenly follows the leaf. Crisp tissue advancing inward can follow a dry root ball, hot airflow or scorch. Soft expanding darkness needs isolation and removal.

Silver-green centres become dull or marked

Change the viewing angle and check the surface for dust or dried droplets. A soft damp cloth can remove loose residue. A papery patch within the blade is usually scorch. A translucent lesion that keeps enlarging may be leaf spot.

Low clump wilts after leaving an enclosure

A rapid humidity change can cause broad leaves to lose water faster than the roots replace it. Acclimatise gradually and keep gentle air exchange around the plant. Persistent wilting in a heavy pot calls for a root check.

Short rhizome softens beneath healthy leaves

Lift the overlapping foliage and test the exposed rhizome. Any wet, soft or sour-smelling section should be removed back to firm tissue. Root a healthy end section shallowly and replace stagnant mix with a smaller pot of fresh, airy mix.

Begonia burkillii ‘Silver Edge’ is toxic to people and pets

• Keep this plant away from children, cats and dogs.
• The roots and rhizomes contain the highest levels of soluble oxalates, and the sap can irritate skin.
• Chewing may cause mouth irritation, drooling, vomiting or stomach pain. Contact a veterinarian or medical professional if symptoms develop.

What does the name Begonia burkillii mean?

Begonia honours Michel Bégon. The epithet burkillii honours British botanist Isaac Henry Burkill.

Carl Linnaeus established the genus Begonia in 1753 in Species Plantarum, page 1056.

Stephen Troyte Dunn first described Begonia burkillii in 1920 in Bulletin of Miscellaneous Information, Kew, volume 1920, page 110.