
Wild betel leaf
Piper sarmentosum

Glossy heart-shaped leaves wrapped around grilled meat; moisture-loving, it spreads as a carpet.
Care and placement
Prefers part to full shade and rich, moist but draining soil at pH 5–7; spreads fast so give room or a pot; frost-tender.
Draft mature dimensions
Maximum height (cm): 40 cm · Maximum spread (cm): 80 cm
Things to consider
PFAF notes the leaves are edible and used as a seasoning; eat only washed leaves of the correct species. It can spread strongly in open ground.
How to grow and care for it
Planting and pot
Plant in part shade in rich, moist, draining soil about 50 cm apart, as an understorey cover; use a wide pot to limit spread.
Light
Part shade is best, full shade is tolerated; avoid harsh sun.
Watering
Keep soil evenly moist but not waterlogged.
Feeding
Humus-rich soil and mulch are enough. (The sources checked give no specific schedule.)
Pruning
Pick leaves continuously; trim runners that spread too far.
Propagation
Stem cuttings are highly reliable and division also works; seed is impractical. Keep cuttings warm, humid and shaded without direct sun until rooted (2–4 weeks in water), or root in moist mix under a clear bag.
Pests and common problems
(The sources checked name no specific pests.) It wilts when dry; the main issue is unwanted spread.
For a bigger harvest
For plenty of leaves: light shade, moist humus-rich soil and regular picking to branch. Harvest continuously year-round, first at about 120 days after planting; pick early morning or late afternoon.