Complete Botanical Sheet: Pilea peperomioides (Chinese Money Plant / Pizza Plant)

1. For the Gardener or Informed Amateur

📍 Cultivation Conditions

• Climate :
• Ideal : Temperate to subtropical (20–25°C day, 15–18°C night).
• Indoors :
• Temperature : 18–24°C (tolerates 15–28°C).
• Humidity : 50–70% (occasional misting or pebble tray).
• Avoid : Cold drafts, dry radiators.
• Soil :
• Homemade recipe :
• 60% universal potting soil (without peat for ecology).
• 20% perlite or pozzolana (drainage).
• 20% compost or coconut fibre (water retention).
• pH : 6,0–7,0 (test with pH paper if unsure).
• Exposure :
• West or East : Ideal (soft morning or late afternoon light).
• North : Possible but growth slowed (less round leaves).
• South : To avoid (leaf scorch).
• Planting :
• Period : Spring or early summer (active growth period).
• Method :
• Repotting : Every 2–3 years in spring.
• Container : Pot with drainage holes (risk of rot otherwise).
• Spacing : 20–30 cm between each plant (for beds in warm climates).
• Maintenance :
• Watering :
• Method : Bottom watering (pot soak 10 min, then drain).
• Frequency : 1 time/week in summer, 1 time/10–15 days in winter.
• Signs of water shortage : Drooping leaves, slightly wilted.
• Mulching : Not necessary (indoor plant), but can help outdoors.
• Pruning :
• Remove yellow or damaged leaves.
• Cut back long stems to encourage branching.
• Fertiliser :
• Type : Balanced liquid fertiliser (NPK 10-10-10) or organic (liquid compost).
• Frequency : Every 15 days in spring/summer, 1 time/month in autumn/winter.
• Dose : Dilute by half to avoid scorching.

Propagation

• By stem cutting (simplest method) :
• Period : Spring or early summer.
• Materials :
• Sterilised scissors.
• Rooting hormone (optional).
• Substrate : Perlite/potting soil mix (50/50).
• Method :

1. Cut a stem of 8–10 cm with 2–3 nodes.
2. Remove lower leaves.
3. Plant in a moist substrate.
4. Cover with a plastic bag (greenhouse effect) or place under a bell.
5. Temperature : 20–25°C, indirect light.
6. Rooting : 3–6 weeks.

• Success rate : 80–95%.
• By leaf cutting (slower) :
• Method : Cut a leaf with its petiole, plant in a moist substrate.
• Rooting : 6–12 weeks.
• By division :
• Period : Spring.
• Method : Carefully separate offsets at the base of the mother plant.

🐝 Attractiveness to Wildlife

• Pollinators : Bees and hoverflies (outdoors, if flowering).
• Soil fauna : Earthworms (if grown in ground in warm climates).
• Humans : Edible plant (leaves in salad or infusion).

🚫 Common Problems & Solutions

2. For the Professional Producer

Industrial Production

• Commercial varieties :

• Optimal conditions :
• Climate :
• Temperature : 18–24°C (ideal : 20–22°C).
• Humidity : 60–80% (humid greenhouse or automatic misting).
• Light : 10 000–20 000 lux (LED grow light in winter).
• Soil :
• Substrate : Sterilised potting soil + perlite (30%) + compost (20%).
• pH : 6,0–6,5.
• Drainage : Essential (risk of root rot).
• Crop rotation :
• Avoid replanting Pilea in the same place without disinfection (risk of fungal diseases).
• Prefer rotation with unrelated plants (e.g., Calathea, Maranta).

• Cultural techniques :
• Soil preparation :
• Steam disinfection or with biofungicide (e.g., Trichoderma).
• Incorporation of mycorrhizae to improve nutrient absorption.
• Sowing :
• Method : Stem cutting (no commercial sowing, as it is difficult).
• Density : 10–15 plants/m² in greenhouse.
• Depth : 2–3 cm (nodes must be buried).
• Irrigation :
• System : Drip or sub-irrigation (avoid wetting foliage).
• Water needs : 500–700 ml/m²/day in summer (reduce in winter).
• Water quality : Soft water (pH 6,0–7,0, low in lime).

💰 Marketing & Market

• Sales channels :
• Specialist shops (online garden centres, organic nurseries).
• Supermarkets (indoor plant aisle).
• E-commerce platforms (Amazon, Etsy, decoration sites).
• Average price :
• Adult plant : 15–40 € (depending on size and variety).
• Cuttings : 5–15 € (online or plant markets).
• Market trends (2024) :
• Strong demand for variegated varieties ('Green Harmony').
• Eco-responsible packaging (coconut fibre pots, recycled labels).
• Propagation kits (for beginners).

Research & Innovation

• Genetic improvement :
• Selection of varieties resistant to powdery mildew.
• Creation of cultivars with ultra-fast growth for mass production.
• Vertical farming :
• Culture in hydroponic system (inert substrate + nutrient solution).
• Advantages : Increased yield, no soil-borne diseases.
• Biocontrol :
• Use of natural predators (e.g., Phytoseiulus persimilis against spider mites).

📚 APPENDICES