How to Grow and Care for a Circle Plant
Caring for a Calathea orbifolia is about creating the right environment. This guide explains how to meet its unique needs to keep its foliage vibrant.
The “circle plant” is the common name for Calathea orbifolia, a plant known for its large, round leaves with silver and green stripes. Its foliage makes it a popular choice for adding a tropical feel to interior spaces. As a member of the Marantaceae family, also known as prayer plants, it has a decorative appearance that stands out in a collection.
Circle Plant Care Guide
Light Requirements
Calathea orbifolia thrives in bright, indirect sunlight, which mimics the light on the forest floor. An ideal location is near an east or north-facing window with a sheer curtain to diffuse the light. Too much direct sun will scorch the leaves and cause brown patches. Insufficient light can lead to faded leaf patterns and stunted growth.
Watering Practices
Calathea orbifolia is sensitive to minerals in tap water, so using filtered, distilled, or rainwater is recommended to prevent browning on leaf edges. The soil should be kept consistently moist but not waterlogged, as this can lead to root rot. A reliable method is to check the top one to two inches of soil. If it feels dry, water the plant thoroughly and allow any excess to drain away.
Soil Composition
The roots of Calathea orbifolia require a light, airy, and well-draining potting mix that also retains moisture. A peat-based mixture combining peat moss or coconut coir with perlite will enhance drainage and aeration. This soil structure helps maintain moisture without becoming overly saturated.
Humidity and Temperature
Calathea orbifolia requires high humidity levels of 50% or higher. Using a humidifier is the most effective way to meet this need. Placing the pot on a pebble tray filled with water or grouping it with other plants can also increase ambient moisture. Ideal temperatures range from 65 to 75°F (18 to 24°C). The plant should be kept away from cold drafts or sudden temperature fluctuations.
Fertilization Schedule
During the spring and summer growing season, Calathea orbifolia benefits from regular feeding. Apply a balanced liquid fertilizer, diluted to half-strength, monthly to support new growth. Do not over-fertilize, as this can burn the roots and cause brown spots on the leaves. In the fall and winter, reduce or stop fertilization as growth slows.
Common Issues and Solutions
Crispy or Brown Leaf Edges
Crispy, brown leaf edges are a frequent issue caused by low humidity or minerals in tap water. To resolve this, increase ambient moisture and switch to watering with filtered, distilled, or rainwater.
Yellowing Leaves
Yellowing lower leaves are a sign of overwatering, which suffocates the roots. To address this, check the soil’s moisture before watering. Allow the top layer of soil to dry out and ensure the pot has adequate drainage.
Drooping or Curling Leaves
Drooping or curling leaves signal that the plant is thirsty from underwatering or dry soil. A thorough watering will cause the leaves to perk back up within a day. Calathea plants also exhibit nyctinasty, a natural movement where leaves droop at night and rise in the morning, which is not a sign of distress.
Pest Infestations
Calathea orbifolia can be susceptible to pests like spider mites, which thrive in dry air. These pests can be identified by fine webbing on the undersides of leaves. Regularly inspect the foliage. If pests are found, treat them by wiping the leaves down or using an insecticidal soap.
Propagation and Repotting
Repotting Indicators
Repot a Calathea orbifolia every one to two years, or when it becomes root-bound with roots growing from the drainage holes. Spring is the ideal time for this task as the plant enters its active growth period.
Select a container that is only slightly larger in diameter than the current one to avoid excess soil that can hold too much moisture. Gently remove the plant, inspect the root ball, and place it in the new container with fresh potting mix at the same depth.
Propagation Through Division
The most reliable way to propagate Calathea orbifolia is through division during repotting. Carefully separate the root ball into smaller sections with your hands. Ensure each new division has a healthy portion of the root system and at least a few leaves. Pot each section into its own container with fresh soil and water it thoroughly.