How to Grow Anthurium
Anthurium andraeanum
Anthurium produces long-lasting waxy spathes in red, pink, or white and thrives in bright indirect light with high humidity. Keep above 16°C, water when the top layer of compost begins to dry, and feed every four to six weeks in spring and summer. Wipe the glossy leaves occasionally to remove dust and improve light absorption. It rewards consistent warmth and humidity with near-continuous blooms.
Yearly Lifecycle
Care Essentials
Feed every four to six weeks with a balanced liquid fertiliser during spring and summer. Reduce to once every two months in autumn and winter.
Watch For
- Mealybug
- Scale insects
- Spider mites in low humidity
- Root rot from overwatering
- Bacterial blight causing yellow-edged leaf patches
Track your Anthurium care schedule — pruning, feeding, and seasonal tasks
Start planning freeCare Requirements
☀️ Light
Bright indirect light; no direct sun
Place near an east or north-facing window where light is bright but diffuse. Direct sun scorches the waxy spathes and glossy leaves; deep shade causes slow growth and reduced flowering.
💧 Watering
Water when top 2–3 cm of compost dries
Allow the upper layer of compost to partially dry between waterings, then water thoroughly until it drains from the bottom. Never allow the pot to sit in standing water, which quickly leads to root rot.
🌱 Fertilizing
Balanced liquid feed every 4–6 weeks in spring and summer
Use a balanced liquid fertiliser at half strength every four to six weeks from spring through summer. Reduce to once every two months in autumn and winter when growth slows.
✂️ Pruning
Remove spent spathes and yellowed leaves promptly
Cut faded spathes and yellowed leaves back to the base with clean scissors. This keeps the plant tidy and redirects energy into new growth and blooms. Wipe leaves occasionally with a damp cloth to remove dust.
🌿 Humidity
High humidity preferred; aim for 60%+
Anthurium thrives with relative humidity above 60%. Use a pebble tray with water, a room humidifier, or group plants together to raise humidity. Avoid regular misting directly onto the spathes, which can cause spotting.
🌿 Temperature
Keep above 16°C year-round; avoid cold draughts
Maintain a minimum of 16°C at all times. Keep away from cold windows, exterior doors, and air conditioning vents. Temperatures above 30°C combined with low humidity cause stress and reduced blooming.
Growing Tips
Boost Humidity
Anthurium thrives above 60% relative humidity. Stand the pot on a tray of damp pebbles or use a room humidifier — regular misting is less effective and can cause brown spots on the spathes.
Bright Indirect Light Only
Place near a well-lit window but screened from direct sun. East or north-facing windowsills work well in UK homes. Direct sun scorches the waxy spathes and glossy leaves within hours.
Water with Tepid, Soft Water
Use room-temperature rainwater or filtered water if possible. Cold or hard tap water can cause tip burn and root stress. Allow the top 2–3 cm of compost to dry before watering again.
Repot Every Two Years
Anthurium blooms best when slightly root-bound. Repot in spring into a pot only one size larger, using a well-draining orchid or aroid mix to prevent root rot.
Pests & Diseases
Pest Mealybug
Identification: White cottony clusters in leaf axils, along stems, and at the base of spathes. Infested plants show yellowing and distorted growth.
- Dab individual bugs with a cotton swab dipped in rubbing alcohol.
- Spray with insecticidal soap solution, ensuring full coverage of hidden crevices.
- Apply a systemic imidacloprid-based houseplant drench as a last resort.
Pest Spider Mites
Identification: Fine webbing on the undersides of leaves and between stems. Leaves develop a pale stippled appearance and may feel gritty when rubbed.
- Increase humidity immediately — spider mites thrive in dry air.
- Spray thoroughly with water, then apply neem oil or insecticidal soap weekly.
- Use a miticide spray approved for indoor houseplants.
Pest Scale Insects
Identification: Brown or tan oval bumps fixed to stems and the undersides of leaves. Sticky honeydew deposits beneath infested areas are a telltale sign.
- Scrape off individual scales with a soft toothbrush or thumbnail.
- Wipe stems and leaves with a cloth dampened with dilute insecticidal soap.
- Apply a systemic houseplant insecticide containing acetamiprid.
Disease Root Rot Pythium spp. / Phytophthora spp.
Symptoms: Yellowing leaves, wilting despite moist compost, and dark mushy roots when the plant is removed from its pot.
Treatment: Remove the plant from its pot, trim all blackened roots cleanly, and repot into fresh well-draining aroid mix. Reduce watering frequency significantly.
Prevention: Never allow the pot to sit in standing water. Use a well-draining aroid or orchid compost. Ensure the pot has adequate drainage holes.
Disease Bacterial Blight Xanthomonas axonopodis pv. dieffenbachiae
Symptoms: Yellow, water-soaked patches on leaves that enlarge and turn brown with yellow margins. Spathe edges may also show brown discolouration.
Treatment: Remove and dispose of heavily affected leaves immediately. Avoid overhead watering and wetting the foliage. There is no reliable chemical cure once established.
Prevention: Always water at compost level. Maintain good air circulation. Avoid wounding the plant during repotting or leaf cleaning.
Log Anthurium in your garden — track growth, care, and harvests year after year
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