Aphylia

🌱 Calathea Medallion

🔬 Goeppertia roseopicta · 👨‍👩‍👧 Famille: Marantaceae · 🌍 Origine: Brazil

À propos de Calathea Medallion

Calathea ‘Medallion’ is a cultivated form of Goeppertia roseopicta (often sold under the former genus Calathea) grown for its large, patterned leaves with contrasting upper and lower surfaces. It is a tropical, rhizomatous evergreen perennial primarily cultivated as a warm, humid indoor foliage plant.

🌱 Guide d'Entretien Détaillé

💧 Arrosage: surface, soaking
💦 Humidité: 70%
🌡️ Température: Idéale: 24°C • Min: 15°C • Max: 30°C
🌱 Substrat: potting soil, peat, perlite

📐 Croissance & Structure

📏 Hauteur: 60 cm
↔️ Envergure: 60 cm
🔄 Cycle de vie: perennial
🍃 Feuillage: evergreen
🌿 Saisons: spring, summer

📅 Phénologie

🌱 Semis: march
🌸 Floraison: june
🍎 Fructification: september

✨ Utilisations & Avantages

  • ornamental

⚠️ Sécurité & Caractéristiques

👤 Toxicité humaine: non toxic
🐾 Toxicité animaux: non toxic

🌱 Propagation

🌱 Multiplication: clump division
🌰 Méthode de semis: greenhouse, pot
🪴 Transplantation:

🧪 Sol & Nutrition

🍂 Paillage: bark
🧪 Engrais: liquid fertilizer, sea fertilizer
Besoins nutritifs: nitrogen, phosphorus, potassium, calcium

🐛 Ravageurs & Maladies

🐛 Ravageurs: Spider mites, Mealybugs, Scale insects, Thrips, Aphids
🦠 Maladies: Root rot, Leaf spot, Botrytis (gray mold)

📝 Conseils d'Expert

🌱 Conseil Sol:

Use a loose, moisture-retentive but free-draining mix (peat/coco-based potting soil cut with perlite and a little fine bark). Keep pH slightly acidic to neutral, and always use a pot with drainage holes to prevent waterlogging and root rot.

🌾 Conseil Semis:

This cultivar is not reliably raised from seed in cultivation; propagate by division. Divide the rhizomatous clump during repotting (best in spring to early summer) by separating sections with several leaves and healthy roots. Pot each division into a container with drainage using a moisture-retentive but airy mix (e.g., peat/coco-based with perlite and fine bark), keep the crown at the same depth as before, water thoroughly, and maintain warm temperatures and high humidity while it re-establishes.

🧪 Conseil Engrais:

Feed lightly during active growth (spring–summer) with a balanced liquid houseplant fertilizer diluted to 1/4–1/2 strength every 4 weeks; reduce or stop in winter. Flush the pot with clean water periodically to limit salt buildup, and avoid overfeeding which can scorch leaf margins.

🍂 Conseil Paillage:

Top-dress the pot with a thin layer of fine bark to reduce evaporation and help stabilize moisture; keep mulch off the crown/stems to reduce risk of rot and fungus gnats.

🏗️ Conseil Tuteurage:

No staking is normally required. Provide a stable pot and rotate the plant periodically for even growth; divide or repot if the clump becomes top-heavy.

✂️ Taille:

Prune only for tidiness: remove yellowing or damaged leaves by cutting the petiole cleanly at the soil line; remove any spent flower spikes at the base. Avoid heavy cutting of healthy foliage.

Tags: #Calathea Medallion#Goeppertia roseopicta#prayer plant#tropical houseplant#ornamental foliage#humid-loving#shade-tolerant#bright indirect light#indoor plant#non-toxic to cats#non-toxic to dogs

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