Ball Aralia, also known as Polyscias balfouriana, is a popular ornamental plant known for its distinctive appearance and attractive foliage. It is native to the Pacific Islands and belongs to the Araliaceae family. The plant is named for its rounded, ball-like shape, which is created by pruning and shaping its branches.

Here are some key characteristics and care tips for Ball Aralia:

1. Appearance: Ball Aralia has dense, glossy, dark green leaves that are divided into smaller leaflets, giving them a fern-like or palm-like appearance. The leaves grow in a symmetrical arrangement around the stem, contributing to the plant's rounded shape.

2. Light requirements: Ball Aralia prefers bright, indirect light. It can tolerate some shade, but avoid placing it in direct sunlight, as it may scorch the leaves. Placing the plant near a window with filtered light or in a well-lit room is ideal.

3. Temperature and humidity: Ball Aralia thrives in average to warm room temperatures ranging between 65-80°F (18-27°C). It appreciates higher humidity levels, so misting the leaves or using a humidifier can help maintain the desired moisture levels.

4. Watering: It's important to keep the soil slightly moist but not overly saturated. Water the plant when the top inch of soil feels dry to the touch. Avoid waterlogging or allowing the plant to sit in standing water, as it can lead to root rot.

5. Soil: Use a well-draining potting mix that retains some moisture. A mixture of peat moss, perlite, and regular potting soil works well for Ball Aralia.

6. Pruning and shaping: To maintain the plant's ball-like shape, prune and shape the branches regularly. You can trim the plant lightly throughout the year to control its growth and enhance its appearance.

7. Fertilization: Feed Ball Aralia with a balanced, water-soluble houseplant fertilizer once a month during the growing season (spring and summer). Follow the instructions on the fertilizer package for the appropriate dosage.

8. Repotting: As the plant grows, you may need to repot it into a slightly larger container every 1-2 years. Choose a pot with drainage holes to prevent waterlogging.

9. Pests and diseases: Ball Aralia is generally resistant to pests, but it can occasionally be susceptible to common houseplant pests such as spider mites, aphids, or mealybugs. Regularly inspect the leaves for any signs of infestation and take appropriate measures to control pests if necessary.

Remember that individual care requirements may vary based on factors like climate, humidity, and the specific conditions in your home. Observing the plant closely and adjusting care accordingly will help ensure its health and vitality.