Pellionia Repens

Quick facts

Identity

Also known as

Trailing Watermelon Begonia; Watermelon Begonia; Wavy Watermelon Begonia

Synonyms

Procris repens; Elatostema repens; Pellionia daveauana

Environment

Terrestrial

Native to

Vietnam, Malaysia, Southeast Asia

Habitat

Humid tropical forest floor, creeping and rooting at nodes across leaf litter and damp soil in the understory of Southeast Asian rainforests.

Sourcing

Captive-bred

Conservation

Not Evaluated

Care

Care level

Easy

Growth form

Vine

Max height

3 – 6 in (7.6 – 15 cm)

Spread

24 in (61 cm)

Growth rate

Fast

Placement

Midground, Foreground

Water

Temperature

65 – 85 °F (18 – 29 °C)

Humidity

50 – 90%

Planting

Substrate

Nutrient-rich preferred

Feeds from

Roots

Fertilizer needs

Low

Colors

Green, Pink, Multicolor

Feeding & breeding

Propagation

Cuttings

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Care guide

Overview

Dark green ovate leaves marbled with light green to silvery patterning cover trailing stems that blush pink-red under brighter light. This creeping vine roots at each node as it spreads, forming a low groundcover or draping accent over hardscape. It needs humid, evergreen terrarium or paludarium conditions and cannot tolerate submersion.

Care

This creeping vine roots at its nodes as it spreads, making it a dense groundcover or trailing accent over hardscape in a terrarium or paludarium. Bright but indirect light keeps the leaf pattern crisp and stems compact; too little light causes stretched, leggy growth with sparse foliage. It tolerates typical room temperatures but grows best in warm, humid conditions and should never be allowed to dry out completely.

Planting & trimming

Lay stem cuttings directly on damp substrate or bury the lower nodes lightly; the trailing stems root readily where they touch moist ground or bark. It works well planted in the foreground or allowed to spill over driftwood, rock ledges, or terrarium backgrounds. Pinch growing tips periodically to keep the habit compact and encourage branching.

Fertilizing

A light dose of balanced liquid fertilizer diluted to quarter strength every few weeks during active growth is usually enough, since this plant grows in nutrient-poor leaf litter in the wild. Overfeeding tends to cause weak, floppy stems rather than improved growth. Pale or washed-out new leaves can signal a need for more light rather than more fertilizer.

Propagation

Propagation is done from stem cuttings, which root quickly from the nodes when placed on moist substrate in warm, humid conditions. No rooting hormone is generally needed given how readily the nodes strike roots.

Problems

Crisping or curling leaf edges usually indicate the substrate or air has dried out, while mushy stems point to overly soggy, poorly drained media and incipient rot. It has no serious pest problems in enclosed terrarium conditions, though mealybugs can occasionally appear on houseplant specimens. Cold drafts below roughly 50°F can cause leaf drop.

Sources

1. Trailing Watermelon Begonia - Procris repens - NC State Extension Gardener Plant Toolbox
2. Trailing Watermelon Begonia (Pellionia repens): Terrarium Care Guide
3. Pellionia repens: Growing the Trailing Watermelon Begonia
4. Pellionia repens - Plant Finder

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