How to Grow Calathea Medallion
iNaturalist
Calathea Medallion
Goeppertia veitchiana
flowerCalathea medallion is a stunning tropical houseplant renowned for its large, oval leaves with intricate pink and white patterns radiating from a dark green center, resembling a medallion. Native to the rainforests of Peru, it's a non-toxic, decorative plant that brings dramatic foliage indoors. This prayer plant earned its nickname from its leaves' tendency to fold up at night in a prayer-like position.
When should you plant Calathea Medallion in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Calathea Medallion timeline · Pittsburgh, PA (Zone 6b)
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Plant Calathea Medallion
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Calathea Medallion blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Calathea Medallion dates for your own zip code.
Growing Conditions
Soil
Growth Stages
Establishment
2-4 weeksRecently potted plant adjusting to new environment; may show slight leaf curl or drooping
Avoid moving plant frequently; maintain consistent warmth (65-75°F), humidity, and watering schedule. Don't fertilize for first month
Active Growth
Spring through early fallNew leaves unfurl regularly; plant produces 1-3 new leaves monthly under good conditions
Maintain bright indirect light and 60-80% humidity. Fertilize every 2-3 weeks with diluted balanced fertilizer (10-10-10). Rotate plant weekly for even growth
Leaf Maturation
1-2 weeks after unfurlingNew leaves fully unfurl, revealing their distinctive pink/white medallion patterns and deep green coloring
Gently wipe mature leaves monthly with distilled water and soft cloth to remove dust and enhance photosynthesis. Avoid commercial leaf shine products
Blooming
Sporadic; not reliably annualSmall, insignificant purple or white flowers may appear on flowering stalks; rarely occurs indoors
Flowering is rare indoors and not the plant's primary feature. Remove flower stalks if desired to redirect energy to foliage production
Rest/Dormancy
November through FebruaryGrowth slows dramatically; plant requires less water and fertilizer; leaves remain on plant but new growth nearly stops
Reduce watering frequency slightly but maintain humidity. Stop fertilizing or reduce to once monthly. Maintain temperatures above 60°F; avoid cold drafts
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity to 70%+; spray undersides of leaves with water weekly; isolate plant; use neem oil if severe
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Remove with cotton swab dipped in rubbing alcohol; spray with insecticidal soap; quarantine plant
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Scrape off manually; treat with neem oil or horticultural oil spray every 7-10 days
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Improve drainage immediately; repot in fresh soil; reduce watering frequency; ensure pot has drainage holes
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Remove affected leaves; improve air circulation; avoid wetting foliage; use fungicide if widespread
Uses
Indoor Air Purification
HouseholdCalathea medallion is listed among NASA's air-purifying houseplants, removing toxins like formaldehyde and xylene from indoor air while adding humidity. [source]
Non-toxic for Pets and Humans
CulinaryUnlike many houseplants, Calathea medallion is completely safe for cats, dogs, and children if ingested, making it ideal for homes with curious pets and young children. [source]
Decorative Foliage Display
CraftThe striking medallion-patterned leaves make it a popular choice for interior design, botanical collections, and as a statement plant in homes and offices seeking tropical aesthetics. [source]
Stress Reduction Through Biophilia
MedicinalStudies suggest that caring for houseplants like Calathea and viewing their vibrant foliage reduces stress and anxiety while improving mental well-being and air quality in living spaces. [source]
Tropical Ecosystem Representation
WildlifeAs a native Peruvian rainforest plant, growing Calathea indoors creates a small representation of tropical ecosystems and supports appreciation for biodiversity conservation. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Not harvested for food or material; grown for continuous foliage display. Prune dead or damaged leaves at leaf base to encourage bushier growth and remove 1-2 oldest outer leaves annually to maintain shape and vigor
Fun Facts
- 🌱 Calathea medallion's leaves perform a remarkable circadian rhythm, folding up at night and opening during the day—this movement is called 'nyctinasty' and produces an audible rustling sound, earning it the nickname 'prayer plant'
- 🌱 The intricate pink and white patterns on each leaf are unique, making every plant's foliage distinctly individual—no two leaves are exactly identical
- 🌱 Despite their tropical appearance and fussy reputation, Calatheas were named after the Greek word 'kalathos,' meaning basket, referencing the basket-like flower structure, though this is rarely seen in indoor cultivation
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