Xanthosoma sagittifolium ‘Lime’

Xanthosoma sagittifolium ‘Lime’: native range of the species

Xanthosoma sagittifolium grows naturally from Costa Rica through tropical South America. In wet tropical habitats, upright leaves rise from an underground storage stem during warm, humid conditions. Indoors, ‘Lime’ needs similar warmth and bright filtered light, with regular water during growth and a free-draining mix around the base.

How to grow Xanthosoma sagittifolium ‘Lime’ indoors

Light

In strong filtered light, new leaf stalks stay shorter and sturdier, and the lime-green colour remains clear. Avoid abrupt exposure to midday sun, which can wash out or burn the chartreuse blades.

Water

Water generously while fresh leaves are unfolding, allowing the top of the mix to begin drying between soakings. Empty all runoff, and wait longer before watering again in cool or dim conditions.

Potting mix

Choose a nutrient-rich but open potting mix made with airy organic material, bark and pumice or perlite. Keep the base at its original depth and use a pot with drainage so water does not collect around the underground stem.

Temperature and humidity

Keep the plant warm, ideally near 20–28 °C, and shelter it from temperatures below about 15 °C. Moderate humidity generally works, while higher humidity requires enough spacing to prevent wet leaves and congested air.

Feeding and repotting

Feed this fast-growing plant regularly with a weak, balanced fertiliser while new leaves are appearing. Repot as roots and pups fill the container, but avoid a large jump in pot size that makes the watering pattern difficult to judge.

Managing upright growth

This selection grows as several upright shoots from the base and needs no climbing support. Give it room to widen, remove only collapsed or fully yellow leaves, and water less and stop feeding if it enters a seasonal pause.

Propagation

Separate pups once they carry their own roots, or divide a mature underground storage stem so each piece has a healthy bud. Plant sections into warm, airy mix and water lightly until a new leaf begins to grow.

Xanthosoma sagittifolium ‘Lime’: common care problems

Normal lime colour turns unhealthy yellow

This selection should be bright yellow-green, so judge stress by change rather than colour alone. Yellowing that starts at the leaf-stalk base, affects several leaves or accompanies soft roots means you should check the pot and roots.

Leaf stalks stretch and lean

Long, weak leaf stalks usually develop in dim or one-sided light. Move the plant closer to bright filtered light, turn the pot regularly and leave enough clearance for each blade to face the light without rubbing.

The underground storage stem or stem base becomes soft

A soft, dark base means rot. Remove the plant, cut back to firm, healthy material, discard the old mix and repot in a clean container with an airy mix.

Leaf margins dry and brown

A missed watering, low humidity or salts from fertiliser can damage the broad edges. Check the mix before watering, run plenty of plain water through the pot and keep the next watering cycle steadier.

Mites or thrips mark the bright foliage

Fine stippling, silvery patches, black specks or deformed new leaves are easier to see against the lime blades. Isolate the plant, wash the foliage and treat the confirmed pest for as long as the product directions require.

Xanthosoma sagittifolium ‘Lime’ is toxic to people and pets

• Keep this plant away from children, cats and dogs.
• Its leaves and stems contain insoluble calcium oxalate crystals, which can irritate the mouth, throat, skin and eyes.
• Chewing may cause burning pain, drooling, swelling, vomiting or difficulty swallowing. Contact a veterinarian or medical professional after exposure, especially if swelling or breathing problems occur.

When was Xanthosoma sagittifolium first published, and what does it mean?

Xanthosoma means ‘yellow body’. The epithet sagittifolium means arrow-leaved.

Heinrich Wilhelm Schott established the genus Xanthosoma in 1832 in Meletemata Botanica, page 19.

Carl Linnaeus first described it as Arum sagittifolium in 1753 in Species Plantarum, page 966. Heinrich Wilhelm Schott later placed it in Xanthosoma as Xanthosoma sagittifolium in 1832 in Meletemata Botanica, page 19.