Pellionia pulchra (pell-ee-OH-nee-uh PUL-kruh) belongs to the Urticaceae family (along with the aluminum plant) and the genus Pellionia. It is native to Southeast Asian countries, especially to Burma, Malaysia, and Vietnam, where it grows as an understory plant.
First cultivated in the twentieth century, ‘pellionia pulchra’ (or pellonia plant) was named after a French naval officer, A.M.J. Alphonse Pellio (1795 – 1868), a member of the French voyage of discovery.
Pellionia is also known as:
- Polynesian Ivy
- Pellionia pulchra watermelon
- Watermelon begonia
- Watermelon vine
Pellionia is also known as watermelon pellionia or watermelon vine houseplant due to its marbled leaves and attractive colors. It is a low, bushy plant that adds a touch of elegance to any room.
In this article, we’ll dive deep into proper pellionia care.
Pellionia Pulchra Care
In terms of Polynesian Ivy care, this family of tender, creeping, low-growing plants is suitable for terrariums or hanging baskets.
While they prefer warm, humid air, they do well wherever African violets thrive.
The same potting mixture used for violets is to their liking: A mixture of equal parts of sand, peat moss, and leaf mold or good loam.
They like enough water, rainwater preferred, to keep the soil moist at all times.
They like plenty of light in the winter, but in the summer, they rest in a shaded corner of an east porch.
Pellionia daveauana has a pointed leaf of gray-green, with outside bands of a purplish brown. The contrast is striking.
It has a smaller, blunt, rounded leaf, with a network of dark veins on green, there being as much of the dark veins as of the green leaf.
On the undersides, the coloring is silvery, with purple veins.
Because the leaves of the two plants are so different in texture and markings, they make an interesting combination planted together.
This can easily be done as they require the same treatment.
Size and Growth
Polynesian Ivy are generally short plants. When growing in pots, they can grow up to 8” – 10” inches.
However, when these are planted in hanging baskets, the beautiful hanging foliage can be quite long.
Furthermore, the showy leaves are marbled and have visible veins, making Pellionia pulchra an excellent option for decorating a hanging basket placed in a window.
Flowering and Fragrance
Pellionia is a flowering garden vine plant. However, it is generally grown for its attractive foliage, as the flowers are insignificant compared to the eye-catching leaves.
While flowers of watermelon vine house plant may appear during the summer, it is advisable to pinch them as they require a lot of nourishment and can take too much energy from the plant.
Neither the pellionia flower nor the plant itself has a distinctive fragrance.
Light and Temperature
Polynesian plants enjoy an abundance of light.
They make a nice option, such as a hanging basket placed in a window or a greenhouse.
However, these plants should never be placed under direct sunlight. They are also unable to tolerate strong breezes.
The ideal environment to grow a Pellionia is at room temperatures of 72° – 78° degrees Fahrenheit.
Even in winter, pulchra plant can flourish well when maintained at room temperatures above 55° degrees Fahrenheit.
Also, keep in mind that the Polynesian Ivy plant does well in humid weather, so the air should not be too dry.
Watering and Feeding Requirements
Pellionia pulchra needs light soil that should ideally remain moist at all times. However, it is advisable to refrain from overwatering these plants.
During summer, these plants require watering more frequently.
Towards the end of the year, reduce watering but ensure the medium remains moist.
As they enjoy high humidity, they grow well in pots placed over wet pebble trays and upside-down pots over a dish filled with water. You may also use a humidifier.
Fertilize the pulchra plant every other week during the spring-summer growing season with a balanced liquid houseplant fertilizer.
Soil and Transplanting Tips
Make sure the tropical plant has enough space to thrive and flourish.
It is advisable to repot when plants become pot bound.
The best time of the year to transplant the pellionia plant is during the spring.
For repotting and cuttings, use an airy blend of rich peaty potting soil with a small amount of perlite in it.
Grooming and Maintenance
Pellonia pulchra is one of the “easy” plants that do not require a lot of maintenance.
While the over-long stems can be pinched back any time of the year, it is generally advisable to trim leggy plants during the spring.
Pinching encourages plant growth, including the sprouting of new leaves and even the breaking of new stems.
How To Propagate Pellionia
Pellionia pulchra propagation is relatively simple through stem cuttings.
- Remove the lowest leaves before planting 4” 4-inch-long cuttings in moist soil.
- Make sure the soil is fast draining with a high peat moss content.
- To grow full, bushy plants, put at least 3 – 4 cuttings per pot.
- Maintain temperatures between 70° – 75° degrees Fahrenheit.
- The cuttings enjoy warm soil and light; do not place them in direct sunlight.
- Pellionia thrives during the summer. If the stems grow too long, pinch them back to maintain an appealing plant shape.
During the winter, place Pellionia in a window facing north to encourage growth.
Aside from stem cuttings, Polynesian ivy propagation can also be done via plant division.
Pellionia Pest or Diseases
Withering leaves are one of the most common problems Polynesian watermelon plant encounters.
Too much sunlight or cold air is often the reason behind black or brown withering leaves. This also happens when temperatures drop below 55° degrees Fahrenheit.
Polynesian ivy plants are also susceptible to small sap-sucking aphid insects. Other common pests include mealy bugs, scales, and whiteflies.
Spraying these plants with a good-quality natural insecticide (neem oil) is generally enough to deal with this problem.
During the winter, it is common to notice brown-gray dust on the leaves.
This happens when the environment is too cold or damp for the plants.
Relocate the plants to a warmer place to restore health and spray with a fungicide if needed.
Where Can You Use Pellionia?
The Polynesian watermelon plant is an excellent decorative houseplant on the patio. Its distinctive leaves with patterned veins are aesthetically appealing as a groundcover.
They grow with other plants and do exceptionally well in hanging baskets in windows.