Piper sp. Indonesia 'Silver'

Piper sp. Indonesia 'Silver': origin and identification

Piper sp. Indonesia ‘Silver’ is linked with Indonesia in cultivation, but its species and wild range have not been confirmed. The country name gives only a broad geographic association. Indoors, keep it warm in diffuse light and humid moving air, using loose potting mix that stays slightly moist without becoming waterlogged.

Keeping Piper sp. Indonesia 'Silver' healthy

Light

Bright filtered light suits the silver-washed leaves and helps the slender stems remain well leafed. Protect pale areas from intense direct sun, and increase light gradually if the spaces between new leaves lengthen noticeably.

Water

Water when the upper layer begins to dry but the mix is still slightly moist below. Drain completely and allow a longer drying interval during cool or low-light periods.

Potting mix

Use a fine-to-medium tropical mix with small bark and pumice or perlite mixed through loose organic potting material. The potting mix should stay slightly moist while remaining loose around the lower stems.

Temperature and humidity

Keep the plant warm with moderate to high humidity and gentle airflow. Protect tender unfolding leaves from cold draughts, dry heater air and persistent condensation.

Feeding and repotting

Apply dilute balanced fertiliser while stems are lengthening and occasionally run plenty of plain water through the mix. Choose a pot only one size larger once the roots have filled the current pot.

Trailing or training the stems

The long, flexible stems can trail from a shelf or grow along a narrow support. Tie them loosely below the stem joints and pinch only healthy growing tips when extra branching is wanted.

Propagation

Root a cutting with one or two stem joints under warm, humid conditions, with the stem joint touching an airy, lightly moist mix. Begin normal watering after roots have grown and a new leaf appears.

Piper sp. Indonesia 'Silver': common care problems

New leaves look plainer after opening

A tender leaf can change as it hardens. If several mature leaves also become smaller or farther apart, move the plant gradually into brighter filtered light and inspect the roots before increasing fertiliser.

Trailing stems lose their lower leaves

Weak light, cold or a missed watering can leave bare growth behind the tip. Correct the condition, give the stem support if desired and trim above a healthy stem joint only after new growth appears.

Wet roots coincide with yellow leaves

Fine roots can fail in continuously wet mix. Unpot the plant, remove decayed brown roots and replant in a clean, airy mix; water again only after the upper layer begins to dry.

Dark translucent patches appear

Cool, still air can damage wet leaves or cause spots. Remove heavily marked leaves, avoid late-day misting and improve spacing so both surfaces dry promptly.

Thrips or mites mark the silver foliage

Check leaf folds and undersides for black specks, distortion, fine stippling or webbing. Quarantine the plant, rinse the affected leaves and follow the product directions until new foliage remains smooth.

Keep Piper sp. Indonesia ‘Silver’ away from children and pets

• Keep this plant away from children, cats and dogs.
• Its effects after chewing or swallowing are unclear, and plant material can still cause an upset stomach.
• Contact a veterinarian or medical professional if symptoms develop or do not settle.

About the name Piper

Piper is Latin for pepper.

Carl Linnaeus established the genus Piper in 1753 in Species Plantarum, page 28.