Philodendron 'Red Sun' is a vibrant and popular hybrid Philodendron, admired for its striking foliage that changes colour as it matures. This cultivar features large, glossy leaves that emerge in brilliant shades of red, orange, or bronze, gradually transitioning to a deep green as they age. Its bushy, upright growth habit and continuous display of warm hues make it a cheerful and eye-catching addition to indoor plant collections in the UK. It is a member of the Araceae family.
The genus name Philodendron comes from Greek words, reflecting the plant's tendency to grow on trees in its native environment. 'Red Sun' is a cultivar name that clearly describes the plant's fiery, sun-like new foliage colours.
Light: Philodendron 'Red Sun' thrives in bright, indirect light. Strong, direct sunlight can scorch its leaves and diminish the vibrant red and orange coloration, while insufficient light may result in slower growth and duller green foliage. A position near a window with filtered light in a typical UK home is ideal.
Water: The potting mix should be kept consistently moist but not saturated. Allow the upper inch or two of the soil to dry between waterings. Ensure the pot has excellent drainage to prevent root issues, which can be a common problem, especially in the UK's climate.
Soil: An airy and well-draining potting mix is essential. A mix specifically formulated for aroids, incorporating materials such as coco coir, perlite, and orchid bark, is often recommended to provide the necessary aeration and drainage.
Fertilising: Use a diluted liquid fertiliser every two to three weeks during the active growing period in spring and summer. Reduce or stop fertilising during the autumn and winter months when the plant's growth naturally slows.
Temperature: This plant prefers warm temperatures, ideally between 18°C and 27°C (65°F and 80°F). It should be shielded from cold draughts and sudden temperature changes, which can occur indoors, particularly during colder UK months.
Humidity: Higher humidity levels are highly beneficial for Philodendron 'Red Sun'. Consider using a humidifier or placing the plant on a pebble tray with water to maintain optimal conditions, especially during drier indoor periods in the UK.
Growth Habit: This Philodendron typically has an upright, bushy growth habit. While it is not a true climber, it can become quite substantial over time.
Toxicity: Like other Philodendrons, this plant is toxic if ingested by humans or pets.