Aluminium Plant
Pilea cadiereiUSDA | Grow Zone
10-12Outdoors all year in zones 10 to 12. Anywhere colder, keep it as a houseplant. Protect it below 50°F.
- Light
- Bright, indirect
- Water
- When top inch is dry
- Humidity
- 40-60%
- Temperature
- 65-75°F (18-24°C)
- Difficulty
- Beginner
- Growth
- Moderate
- Mature size
- 12-18 in tall, wide
- Pets
- Non-toxic to pets
Pilea cadierei, commonly known as the Aluminium Plant, is cherished for its striking silver-patterned leaves. Native to tropical regions, it adds a unique touch to indoor spaces and is easy to care for, making it a popular choice among houseplant enthusiasts.
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Ideal temperature
65-75°F is where it grows fastest. Below 50°F cold damage starts.
Spacing and harvest
- Mature size
- 12-18 in tall, wide
- Plant apart
- 12-18 in
- Frost
- Tender: no frost
Everything it needs
9 essentials at a glance
Watering
Pilea cadierei prefers to be kept slightly moist but not soggy.
Water when the top inch of soil feels dry, typically every 1-2 weeks. In the growing season (spring and summer), increase frequency to once a week, while in fall and winter, reduce to every 2-3 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause leaf droop and crisp edges.
Light
This plant thrives in bright, indirect light but can tolerate lower light conditions.
Ideally, it should receive 6-8 hours of filtered sunlight daily. Avoid direct sunlight, which can scorch the leaves. If placed in lower light, growth may slow down, and the vibrant leaf patterns may fade.
Soil
Pilea cadierei prefers a well-draining potting mix, ideally a blend of peat, perlite, and pine bark.
A pH range of 6.0 to 7.0 is optimal. Ensure the pot has drainage holes to prevent water accumulation, which can lead to root rot.
Humidity
This plant enjoys higher humidity levels, ideally between 40-60%.
To increase humidity, consider using a pebble tray with water or a humidifier. Signs of low humidity include browning leaf tips and leaf drop.
Temperature
Pilea cadierei thrives in temperatures between 65-75°F (18-24°C) and is sensitive to cold drafts.
It is best suited for USDA hardiness zones 10-12. Protect it from temperatures below 50°F (10°C), as it can suffer from cold stress.
Fertilizing
Use a balanced liquid fertilizer with an NPK ratio of 20-20-20 every 4-6 weeks during the growing season.
In fall and winter, reduce feeding to once every 2-3 months. Signs of nutrient deficiency include yellowing leaves, slow growth, and poor leaf color.
Pruning
Prune Pilea cadierei in spring to maintain its shape and encourage bushier growth.
Use clean, sharp scissors to remove any leggy stems or dead leaves. Regularly deadhead spent leaves to promote new growth and maintain appearance.
Repotting
Repot every 1-2 years or when the plant becomes root-bound, indicated by roots growing out of the drainage holes.
Choose a pot 1-2 inches larger in diameter. Carefully remove the plant from its current pot, loosen the roots, and place it in fresh potting mix, ensuring the root ball is level with the soil surface.
Propagation
Propagation can be done through stem cuttings or offsets.
For stem cuttings, take a healthy cutting with at least one leaf node, place it in water or moist soil, and keep it in a warm, bright location. Roots should develop in 2-4 weeks. Offsets can be gently separated from the parent plant during repotting.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or insufficient light.
How to fix it
Adjust watering schedule and ensure the plant receives adequate indirect light.
Browning leaf tips
Why it happens
Low humidity or underwatering.
How to fix it
Increase humidity levels and ensure consistent watering.
Leggy growth
Why it happens
Insufficient light.
How to fix it
Move the plant to a brighter location to encourage more compact growth.
Root rot
Why it happens
Poor drainage or over-watering.
How to fix it
Ensure proper drainage and allow the soil to dry out between waterings.
Leaf drop
Why it happens
Sudden temperature changes or stress.
How to fix it
Keep the plant in a stable environment, away from drafts and extreme temperatures.
Care through the year
Spring
In spring, increase watering as the plant begins to grow actively. Fertilize every 4-6 weeks to promote healthy growth.
Summer
During summer, ensure the plant receives bright, indirect light and maintain consistent moisture. Monitor for pests like spider mites.
Fall
In fall, reduce watering frequency as growth slows. Continue to fertilize but cut back to every 2-3 months.
Winter
In winter, keep the plant in a warm location away from drafts. Water less frequently and avoid fertilizing until spring.
Toxicity & Safety
Pilea cadierei is non-toxic to pets and children, making it a safe choice for households. However, ingestion of any plant material may cause mild gastrointestinal upset.
Good to know
How often should I water my Aluminium Plant?
Water your Aluminium Plant when the top inch of soil feels dry, typically every 1-2 weeks. Adjust frequency based on seasonal changes.
Why are my Pilea cadierei leaves turning yellow?
Yellow leaves can indicate over-watering or insufficient light. Check your watering habits and ensure the plant receives bright, indirect light.
What is the best soil for Pilea cadierei?
A well-draining potting mix that includes peat, perlite, and pine bark is ideal for Pilea cadierei. Ensure the pH is between 6.0 and 7.0.
Can I propagate my Aluminium Plant?
Yes, you can propagate Pilea cadierei through stem cuttings or offsets. Stem cuttings should root in water or moist soil within 2-4 weeks.
What humidity level does Pilea cadierei prefer?
Pilea cadierei thrives in humidity levels between 40-60%. Increase humidity with a pebble tray or humidifier if necessary.
How do I prune my Aluminium Plant?
Prune your Pilea cadierei in spring to maintain its shape. Use clean scissors to remove leggy stems and dead leaves for a bushier appearance.
What temperature is best for Pilea cadierei?
Pilea cadierei prefers temperatures between 65-75°F (18-24°C). Protect it from cold drafts and temperatures below 50°F (10°C).
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