How to Grow and Care for Cordyline Pink Diamond

The Cordyline fruticosa ‘Pink Diamond’ is a Ti Plant variety known for its decorative, lance-shaped leaves marked with a mix of pink, cream, and green. Originating from tropical regions like Southeast Asia and the Pacific Islands, its vibrant appearance has made it a popular houseplant. The plant’s upright, clumping growth habit also makes it a suitable choice for container gardening.

Cordyline Pink Diamond Care

Light

To maintain its vibrant leaf coloration, ‘Pink Diamond’ requires bright, indirect sunlight. Placing the plant in direct, intense sunlight can be detrimental, as it may scorch the leaves and cause brown tips. For indoor cultivation, position it near a window where it can receive at least six hours of filtered sunlight. If grown outdoors, a spot with dappled shade is preferable to protect it from the harsh afternoon sun.

Soil

A well-draining soil rich in organic matter is needed for this plant’s health, with peat-based potting mixes being a suitable option. The soil must retain some moisture without becoming waterlogged, as overly wet conditions can lead to root rot. A slightly acidic soil composition is also preferred to help produce healthy, vibrant leaves.

Water

Consistent moisture is important for the ‘Pink Diamond’, and it should be watered when the top inch or two of soil feels dry. During the active growing season in spring and summer, watering a couple of times a week may be necessary. This keeps the soil consistently moist but not soggy.

Temperature and Humidity

As a tropical plant, ‘Pink Diamond’ thrives in warm and humid conditions, with an ideal temperature range between 65-85°F (18-29°C). It is not frost-tolerant and should be protected from cold drafts and temperatures that dip below 50°F (10°C). The plant appreciates high humidity, so in drier indoor environments, you can increase ambient moisture by misting it, placing it on a pebble tray with water, or using a humidifier.

Fertilizer

During the spring and summer growing season, regular feeding supports vigorous growth. A balanced, water-soluble fertilizer, diluted to half-strength, can be applied monthly. Alternatively, a liquid fertilizer can be used every couple of weeks during this period. Fertilization should be reduced or stopped during the fall and winter when the plant’s growth slows.

Pruning and Propagation

To maintain a neat appearance and encourage fuller growth, occasional pruning is helpful. Use clean, sharp pruning shears to remove any dead, damaged, or yellowing leaves at their base. This also directs the plant’s energy toward new growth. If the plant becomes too tall or leggy, it can be cut back to a desired height to stimulate new shoots.

The sections removed during pruning can be used for propagation. Take a stem cutting from a shoot tip with at least two leaf nodes and remove the lower leaves. These cuttings can be rooted in a glass of water or planted directly into a moist, well-draining soil mix. For soil propagation, dipping the base of the cutting in rooting hormone can improve success. New cuttings should be kept in a warm location with bright, indirect light until roots develop, which takes several weeks.

Common Issues and Solutions

Browning leaf tips or edges can be a sign of low humidity or a sensitivity to fluoride in tap water. Using distilled, rainwater, or filtered water can mitigate this problem. Yellowing leaves, particularly lower on the stem, are often an indicator of overwatering, which can lead to root rot.

A loss of the signature pink color in the foliage is a result of insufficient light. Moving the plant to a brighter location with indirect sunlight will help restore the leaves’ vibrancy. ‘Pink Diamond’ can also be susceptible to pests that hide on the undersides of leaves.

• Spider mites
• Mealybugs
• Scale insects

Regular inspection and wiping the leaves with a damp cloth can help prevent infestations.

Toxicity of Cordyline Pink Diamond

Cordyline ‘Pink Diamond’ is toxic to both cats and dogs if ingested, as the plant contains saponins that can cause gastrointestinal upset.

Symptoms of poisoning can include:

• Vomiting (sometimes with blood)
• Drooling
• Diarrhea
• Weakness
• Loss of appetite

To ensure the safety of pets, place the plant in a location that is well out of their reach. If you suspect your pet has consumed any part of the plant, contact a veterinarian immediately for guidance.