How to Grow Philodendron
Philodendron hederaceum
Philodendrons are forgiving houseplants that tolerate low light but grow best in bright indirect light. Water when the top 3–4 cm of compost dries out and feed monthly in spring and summer. They can trail from a shelf or climb a moss pole — both work well. Wipe the leaves occasionally to keep them dust-free and photosynthesising efficiently.
Yearly Lifecycle
Care Essentials
Feed monthly with a balanced liquid houseplant fertiliser from spring through summer. Reduce to every 6–8 weeks in autumn and stop feeding in winter when growth slows.
Watch For
- Mealybug in leaf axils and on stems
- Scale insects on stems
- Spider mites in dry conditions
- Root rot from overwatering
- Yellow leaves from overwatering or low light
Track your Philodendron care schedule — pruning, feeding, and seasonal tasks
Start planning freeCare Requirements
☀️ Light
Tolerates low light; grows best in bright indirect light.
Philodendrons are forgiving in lower light but grow faster and produce larger leaves in bright indirect light. Avoid direct sun which scorches the foliage.
💧 Watering
Water when top 3–4 cm of compost is dry.
Allow the top few centimetres to dry out between waterings. In winter, reduce frequency as growth slows. Yellow leaves usually signal overwatering.
🌱 Fertilizing
Balanced liquid feed monthly in spring and summer.
Apply a balanced houseplant fertiliser monthly from March to September. Reduce to every 6–8 weeks in autumn and stop entirely in winter.
✂️ Pruning
Trim leggy stems to maintain shape.
Cut back overly long stems to a node to encourage branching. Pruned stems can be used as cuttings. No hard pruning is required.
🌿 Humidity
Appreciates above-average humidity.
While philodendrons tolerate average indoor humidity, they thrive with 50–60% relative humidity. Misting, a pebble tray, or grouping with other plants all help.
Growing Tips
Trailing or climbing — both work
Heartleaf philodendron is equally happy cascading from a shelf or climbing a moss pole. Adding a support encourages larger leaves and faster growth.
Wipe the leaves
Dust on philodendron leaves blocks light and reduces photosynthesis. Wipe each leaf gently with a damp cloth every few weeks to keep the plant at its best.
Watch for yellowing
Yellow leaves are almost always caused by overwatering or sitting in low light. Let the top 3–4 cm of compost dry out before each watering and move closer to a window.
Easy to propagate
Take stem cuttings with at least one node and one leaf, place in water or moist perlite, and roots develop within 2–3 weeks. An ideal plant to share.
Pests & Diseases
Pest Mealybug
Identification: White cottony clusters in leaf axils, along stems, and at growing tips.
- Dab individual bugs with a cotton swab dipped in 70% isopropyl alcohol.
- Spray with diluted neem oil (2% neem, 0.5% dish soap) every 7 days for 3–4 weeks.
- Systemic houseplant insecticide containing imidacloprid applied to the compost.
Pest Scale Insects
Identification: Brown or tan oval bumps on stems and the undersides of leaves. Leaves may become sticky with honeydew.
- Scrape off with a soft toothbrush or cotton swab dipped in alcohol.
- Follow with a neem oil spray every 10 days for 3 cycles.
- Systemic insecticide drench with imidacloprid.
Pest Spider Mites
Identification: Fine pale stippling on leaf surfaces; fine webbing between leaves and stems in heavy infestations.
- Wipe leaves with a damp cloth to remove mites and webbing.
- Spray with neem oil or insecticidal soap every 5–7 days.
- Miticide spray approved for houseplants (e.g. containing bifenazate).
Disease Root Rot Pythium spp. / Phytophthora spp.
Symptoms: Wilting despite moist compost, yellowing lower leaves, mushy brown roots, sour smell from the pot.
Treatment: Remove from pot, cut all rotten roots, dust with cinnamon or sulphur, repot in fresh free-draining compost.
Prevention: Allow top 3–4 cm of compost to dry between waterings. Use a well-draining mix and pots with drainage holes. Never let the pot sit in standing water.
Disease Bacterial Leaf Spot Pseudomonas cichorii / Xanthomonas spp.
Symptoms: Water-soaked or yellow-edged brown spots on leaves, sometimes with a yellow halo. Spots may enlarge and join.
Treatment: Remove affected leaves immediately with sterile scissors. Improve air circulation and avoid wetting foliage when watering.
Prevention: Water at the base only. Keep leaves dry. Avoid overcrowding plants. Disinfect tools between plants.
Log Philodendron in your garden — track growth, care, and harvests year after year
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