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Growing Inspiration
Inspiration for future Agardeni growing environments.
ornamentalFamily: MarantaceaeGenus: Calathea
Cultivar
Rattlesnake Plant
Calathea
The Rattlesnake Plant is a sophisticated tropical perennial valued for its wavy, lance-shaped foliage featuring a rhythmic pattern of dark green spots. Its leaves are equally impressive on the underside, displaying a rich, deep purple hue. Ideal for indoor spaces, this plant prefers consistent moisture and high humidity, making it a perfect choice for adding dramatic architectural interest to any bright, indirect light environment.
The Rattlesnake Plant is a striking tropical houseplant known for its lance-shaped leaves with unique dark green blotches and deep purple undersides. It thrives in humid, indoor environments and adds distinct pattern and texture to home collections.
Marketplace packs coming soon
Current nursery inventory and 18 / 36 / 72 pricing will appear here when available.
Cultivar Story
Start with Inspiration. Grow Your Aspiration.
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Marketplace Plant
A realistic representation of the starter plants offered in 18, 36, and 72 plant quantities.
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Aspirational Garden
Grow your aspirational plan into an inspirational garden.
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Plant Detail
A closer look at the fruit, flower, foliage, or mature defining characteristics of this cultivar.
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Repotting / Start Growing
Begin with a starter plant and establish it in a larger pot using quality potting soil with beneficials and fertilizer.
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Start · Plan · Grow
Start with real plants. Plan with current marketplace availability. Grow your aspirational garden.
Cultivar Video
Agardeni▶
Cultivar Video Coming Soon
See this cultivar from starter plant to aspirational garden.
Plant Profile
Grow Rattlesnake Plant with confidence
Key growing information first, with the complete reviewed cultivar profile available when you want it.
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Sun
Bright, indirect light; tolerates lower light but growth may slow.
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Water
Keep soil consistently moist but not waterlogged. Use filtered or distilled water if tap water has high mineral content.
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Mature size
24 to 30 inches tall and wide.
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Hardiness
11-12
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Growth habit
Clumping perennial with upright foliage.
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Plant type
tropical foliage plant
View Plant Data
Care, size, flowering, climate, soil, health, and additional reviewed data.
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View Plant Data
Care, size, flowering, climate, soil, health, and additional reviewed data.
Good to know
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Growing note
Best results occur in stable temperatures between 65 and 80 degrees Fahrenheit. Avoid cold drafts and direct sun, which can scorch the foliage.
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Climate note
Prefers warmth and high humidity; protect from temperatures below 60 degrees Fahrenheit.
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Flower / fruit
Rarely flowers indoors, but may produce small, yellow-white blooms in optimal conditions.
Growing & Care
Everyday care, growth, feeding, and pruning guidance.
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Growing & Care
Everyday care, growth, feeding, and pruning guidance.
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Sun / light
Bright, indirect light; tolerates lower light but growth may slow.
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Growth rate
Moderate.
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Fertilizer
Apply a balanced liquid houseplant fertilizer diluted to half-strength during the active growing season.
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Pruning
Prune away yellowed or damaged leaves at the base to maintain plant vigor and appearance.
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Care notes
Best results occur in stable temperatures between 65 and 80 degrees Fahrenheit. Avoid cold drafts and direct sun, which can scorch the foliage.
Size & Habit
How the plant grows and the space it needs at maturity.
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Size & Habit
How the plant grows and the space it needs at maturity.
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Mature size
24 to 30 inches tall and wide.
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Growth habit
Clumping perennial with upright foliage.
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Spacing
24 to 30 inches apart.
Flower / Fruit
Flowering, fruiting, pollination, bloom, and harvest behavior.
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Flower / Fruit
Flowering, fruiting, pollination, bloom, and harvest behavior.
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Flowering / fruiting
Rarely flowers indoors, but may produce small, yellow-white blooms in optimal conditions.
Climate & Hardiness
Cold, heat, chill, and regional growing considerations.
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Climate & Hardiness
Cold, heat, chill, and regional growing considerations.
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Hardiness zones
11-12
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Temperature
Prefers warmth and high humidity; protect from temperatures below 60 degrees Fahrenheit.
Soil & Water
Moisture, drainage, soil, and pH preferences.
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Soil & Water
Moisture, drainage, soil, and pH preferences.
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Watering
Keep soil consistently moist but not waterlogged. Use filtered or distilled water if tap water has high mineral content.
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Soil
Well-draining, peat-based potting mix that retains some moisture while allowing for aeration.
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Soil pH
5.5-6.5
More Plant Data
19 additional reviewed fields from this Plant.id.
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More Plant Data
19 additional reviewed fields from this Plant.id.
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Container Growing
Excellent for container culture in well-draining pots. Provide consistent humidity through pebbles trays or humidifiers.
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Family
Marantaceae
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Foliage Look
Dark green, elliptical, wavy, lance-shaped leaves with spotted variegation and dark purple undersides.
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Foliage Rules
Leaves are lanceolate and wavy; must feature characteristic dark green blotches on a lighter green background with purple undersides.
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Fruit Flower Look
Small, insignificant yellow-white structures nestled within colorful bracts.
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Fruit Flower Rules
Flowering is not expected on juvenile starter plants; ignore flower features in nursery imagery.
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Growth Habit Rules
Maintain upright, clumping rosette habit; ensure foliage does not sprawl or droop excessively.
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Mature Plant Look
An upright, dense clump of patterned, wavy leaves with a high-contrast, multi-tonal appearance.
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Mature Stage Morphology
Produces large, stiff, wavy-edged leaves in a radial, clumping formation with distinct dark green and light green patterned tops.
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Morphology Rules
Ensure leaves remain attached to individual petioles originating from a central crown; avoid lanky or elongated stems.
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Plant Faqs
Does the Rattlesnake Plant need high humidity? Yes, it thrives in humidity above 50 percent. Can it grow in low light? It adapts to lower light but performs best in bright, filtered light. Why are the leaves curling? Curling usually indicates the plant is thirsty or the environment is too dry.
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Root Look
Healthy, white-to-tan fibrous roots within a firm root plug.
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Soil Look
Moist, dark brown, high-organic potting substrate.
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Starter Stage
Small, rooted plug with 2-4 lance-shaped leaves displaying emerging patterns.
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Starter Stage Morphology
Young leaves are smaller, thinner, and may show less intense color contrast than mature foliage.
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Video Voiceover Script
Welcome to Agardeni, where inspiration for gardening helps us imagine how and where we will grow Rattlesnake Plant. This is Rattlesnake Plant, available as 18, 36, and 72 plant starter trays through the Agardeni Marketplace. Let this plant become part of your aspirational plan, helping you imagine the future indoor foliage environment you want to create. The defining feature is the beautiful, lance-shaped foliage, showcasing vibrant patterns of dark green spots with striking deep purple undersides. Establish your starter plant by moving it into a four-inch pot with a quality, well-draining mix, later moving it to an appropriate final container once established. Find your inspiration with Agardeni. Explore real plants and real availability. Start. Plan. Grow.
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Youtube Tags
Rattlesnake Plant Goeppertia insignis Calathea houseplants indoor gardening tropical foliage Agardeni starter plants plant care
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Youtube Video Summary
Discover the elegance of the Rattlesnake Plant, a must-have for any indoor tropical collection. Its patterned foliage and deep purple leaf undersides make it a stunning focal point for any bright living space.
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Youtube Video Title
Growing the Rattlesnake Plant Goeppertia insignis
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Future Buyer Brand Sellers
Possible future seller options for 2.5-inch, 4-inch, and 1-gallon finished plants.