The Philodendron ‘New Red’ is a popular houseplant, recognized for its striking foliage. Understanding its specific care requirements is important for fostering healthy growth and maintaining its unique appearance.
Distinctive Features
The Philodendron ‘New Red’, a cultivar of Philodendron erubescens, is characterized by its distinctive leaf coloration and growth habit. Its juvenile leaves emerge dark red, transitioning to deep green as they mature. The undersides of the leaves often retain a reddish hue, complementing its deep red petioles and stems. This plant forms an upright, bushy shape. It is also a climbing plant that benefits from support, with leaves that can become larger when grown on a moss pole.
Optimal Growing Conditions
Light Needs
Philodendron ‘New Red’ thrives in bright, indirect light, mimicking its natural, shaded habitat. Placing the plant near an east or west-facing window, receiving soft light without direct sun exposure, is ideal. Too much direct sunlight can scorch its leaves, while insufficient light can lead to slower growth, leggy stems, and a dulling of the vibrant leaf coloration. If the location is too dark, a grow light can help stimulate growth.
Watering Practices
Consistent moisture without waterlogging is important for Philodendron ‘New Red’. Water the plant thoroughly when the top 1-2 inches (2-5 cm) of soil feel dry to the touch. Allow excess water to drain completely to prevent root rot, as these plants do not tolerate soggy soil. Using room temperature water can help avoid shocking the plant. Drooping leaves can indicate either overwatering or underwatering, requiring careful assessment of soil moisture.
Soil Requirements
A well-draining, airy, and nutrient-rich potting mix is preferred for Philodendron ‘New Red’. An ideal soil pH is slightly acidic, between 5.0 and 6.0. A good mix often includes organic matter like peat moss or coco coir for moisture retention, combined with perlite, pumice, or aged bark to ensure adequate drainage and aeration. This composition helps prevent waterlogging while providing necessary nutrients for robust growth.
Temperature and Humidity
Philodendron ‘New Red’ prefers warm, consistent temperatures, between 65°F and 85°F (18°C and 29°C). It is sensitive to cold drafts and temperatures below 50°F (10°C), which can cause stress or damage. As a tropical plant, it enjoys moderate to high humidity, between 50% and 70%. To increase humidity, consider using a humidifier, placing the plant on a pebble tray filled with water, or occasionally misting the leaves.
Fertilization Schedule
During its active growing season (spring and summer), fertilize Philodendron ‘New Red’ every 4-6 weeks using a balanced liquid fertilizer diluted to half strength. This provides essential nutrients for vigorous growth. Reduce or cease fertilization during fall and winter months when the plant’s growth naturally slows down. Applying fertilizer to moist soil helps prevent root burn.
Ongoing Care and Troubleshooting
Routine maintenance involves strategic pruning to manage size and encourage fuller growth. Prune any yellow, brown, or damaged leaves by cutting them close to the main stem using sterilized shears. Trimming leggy stems just above a leaf node can promote bushier development and improve the plant’s overall appearance. Perform heavier pruning during the active growing seasons (spring and summer), removing no more than 25% of the plant at one time.
Philodendron ‘New Red’ can be susceptible to common houseplant pests like aphids, spider mites, mealybugs, and fungus gnats. Regular inspection of the leaves, especially the undersides, helps in early detection. Spider mites thrive in dry conditions, while mealybugs and scale can be associated with too much moisture. Fungus gnats appear in overly damp soil. Prompt treatment with insecticidal soap or neem oil can help manage infestations.
Yellowing or browning leaves often point to care issues. Yellowing leaves can indicate overwatering or insufficient light, especially if they are older leaves. Brown leaves, especially brown tips, suggest underwatering or low humidity. Mushy leaves or stems indicate overwatering and potential root rot. Adjusting watering practices, ensuring proper drainage, and providing adequate humidity resolve these common problems.