Polynesian Ivy (Procris repens) is a flowering plant that is often cultivated as a houseplant. Polynesian Ivy is also known by the Latin name Pellionia repens. This species is often used in biological demonstrations to teach students about plant biology.
I. Appearance and Characteristics
Pellionia repens is a species of flowering plant in the nettle family, Urticaceae, commonly known as the watermelon begonia or sisik naga, although the latter name may also refer to various Pyrrosia species.
P. repens is an interesting specimen to demonstrate the metamorphosis of chloroplasts (outward of cell) to amyloplasts (inward of cell) if studied with a microscope.
Under its synonym Elatostema repens it has won the Royal Horticultural Society’s Award of Garden Merit. E. repens var. pulchrum has also won the award. Procris repens is also commonly referred to as Pellionia repens, although this name is now regarded as a synonym of Procris repens.
P. repens is a small herbaceous creeper that can reach 15 cm in height and 60 cm in length. Its leaves have toothed edges and are usually 2.5 to 10 cm in length and 2 to 5 cm in width. Its distinctive leaves have a pattern that resembles watermelon rinds or the foliage of certain Begonia species and may fade to completely purple or brown with age.
P. repens is distributed over a wide area, from southern China in the north down to Indonesia in the south. It mainly grows in primary forests in tropical and subtropical climates.
P. repens is a food plant for various Hypolimnas caterpillars.
II. How to Grow and Care
Polynesian Ivy is a low-maintenance plant suitable for novice gardeners seeking to add greenery with minimal effort. Key points include ensuring polynesian Ivy receives bright, indirect light, which promotes vigorous growth without scorching the leaves. Additionally, polynesian Ivy thrives with consistent, moderate watering, allowing the soil surface to dry between watering to prevent root rot. Special care should involve occasional pruning to maintain its compact shape and encourage denser foliage.
Sunlight
Polynesian Ivy thrives under partial sun conditions, receiving diffused light rather than direct, intense sunlight. Optimal growth and health are promoted when the light is bright but filtered, with exposure for several hours a day aiding in robust foliage development and potential flowering. Although specific tolerance levels are not provided, it is typical for such plants to withstand deviations from ideal light to a degree, with less than optimal light possibly leading to leggier growth and fewer flowers. Indoor planting should be near windows that offer a good balance of light without direct exposure, while outdoor planting is best in positions where sunlight is gentle, such as a spot that enjoys morning sun and afternoon shade.
Watering
Originating from humid tropical regions, polynesian Ivy thrives in environments that mimic the consistent moisture of its native habitat. This species exhibits a preference for evenly moist soil, showing moderate drought tolerance but favoring regular hydration. Watering should align with twice-a-week schedules to maintain optimal vigor. Polynesian Ivy is typically grown indoors where controlling humidity levels can complement its watering routine; ensuring adequate moisture supports both foliage health and growth consistency throughout its life cycle.
Soil
Polynesian Ivy thrives in well-drained soil. Prepare a potting mix with equal parts peat, perlite, and pine bark for optimal aeration. This mix prevents water-logging, crucial for polynesian Ivy’s health. If pine bark is unavailable, coconut coir can substitute. Incorporate slow-release fertilizer at planting and bi-annually to boost growth.
Fertilizing
To maintain polynesian Ivy’s health, a balanced nutrition fertilizer is recommended, suitable for regular applications during growing seasons. For optimal growth, fertilize monthly in spring and summer, scaling back in fall and tapering off in winter. Use the fertilizer diluted to half-strength to promote growth without risking root burn. The purpose is to support the plant’s vigorous foliage and potential blooms, ensuring robust health. Monitor your polynesian Ivy for signs of over or under-fertilization, like yellowing leaves or sluggish growth, adjusting as necessary. Always water polynesian Ivy well after fertilization to help distribute nutrients.
Propagation
A member of the Urticaceae family, polynesian Ivy is effectively propagated through cutting. For successful propagation, select a healthy stem and make a clean cut below a leaf node. This ensures optimal root development. Use a rooting hormone to facilitate root growth and plant in a well-draining soil mix. Consistent moisture and warmth are crucial, but avoid water logging which can lead to root rot. With proper care, cuttings will establish themselves as new, robust plants.
Transplanting
Polynesian Ivy thrives when settled into new locations during the vitality of early to mid-spring, ensuring robust root establishment. Select a spot with dappled shade and ensure adequate moisture for optimal growth.
Repotting
Repot polynesian Ivy every 2-3 years to accommodate its growth as a sprawling ground cover. Best done in spring, aligning with active growth phases ensures swift recovery. Choose a shallow, wide container that supports horizontal spread. Post-repotting, provide bright, indirect light and maintain consistent moisture without overwatering. Timely repotting prevents root crowding, promoting a flourishing polynesian Ivy.
III. Uses and Benefits
- Ornamental uses
- Medicinal uses
- Culinary uses
- Cosmetic uses
