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Growing Inspiration
Inspiration for future Agardeni growing environments.
ornamentalFamily: AraceaeGenus: Dieffenbachia
Cultivar
Dieffenbachia 'Cougar'
Dieffenbachia 'Cougar'
Cultivar: Cougar
With its broad, patterned leaves, Dieffenbachia 'Cougar' brings a dramatic tropical feel to any home or shaded garden area. This clumping perennial is valued for its steady, moderate growth and ability to thrive in indirect light. Its striking foliage serves as a versatile focal point in both contemporary container arrangements and sheltered outdoor landscapes.
Dieffenbachia 'Cougar' is a striking tropical foliage plant known for its bold, variegated leaves and upright, clumping habit. It makes an excellent choice for adding lush, architectural greenery to indoor spaces or shaded tropical landscapes.
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18-plant pack · Ship
$68.44per pack
$68.44 total
144 plants available · max 8 packs
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Orders generally ship within 3–7 days after purchase. Agardeni gives priority to USPS Priority Mailfor standard live-plant shipments when practical.
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Agardeni ships from Florida and does not monitor destination temperatures nationwide. Customers are responsible for considering local weather conditions and retrieving packages promptly after delivery.
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Inspect live plants promptly after delivery. Eligible plant-condition claims must be submitted within 48 hours of confirmed delivery.
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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.
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Plant Profile
Grow Dieffenbachia 'Cougar' 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; protect from direct afternoon sun which can scorch the leaves.
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Water
Allow the top inch of soil to dry out between waterings. Reduce frequency during winter months.
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Mature size
2 to 4 feet tall and 2 to 3 feet wide.
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Hardiness
10-12
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Growth habit
Upright, clumping perennial.
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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
Prefers consistently warm temperatures and bright, indirect light to maintain vibrant variegation. Avoid cold drafts and ensure the growing medium remains slightly moist but never waterlogged.
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Climate note
Thrives in temperatures between 65-80°F. Sensitive to temperatures below 55°F; protect from frost and cold drafts.
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Flower / fruit
Rarely flowers indoors, but mature plants may produce inconspicuous spathe-like inflorescences. Grown primarily for foliage.
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; protect from direct afternoon sun which can scorch the leaves.
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Growth rate
Moderate.
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Fertilizer
Apply a balanced liquid fertilizer diluted to half strength monthly during the active growing season.
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Pruning
Trim off older, lower leaves as they yellow to maintain a tidy appearance. Use sterile tools.
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Care notes
Prefers consistently warm temperatures and bright, indirect light to maintain vibrant variegation. Avoid cold drafts and ensure the growing medium remains slightly moist but never waterlogged.
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
2 to 4 feet tall and 2 to 3 feet wide.
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Growth habit
Upright, clumping perennial.
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Spacing
2 to 3 feet apart for garden beds.
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 mature plants may produce inconspicuous spathe-like inflorescences. Grown primarily for foliage.
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
10-12
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Temperature
Thrives in temperatures between 65-80°F. Sensitive to temperatures below 55°F; protect from frost and cold drafts.
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
Allow the top inch of soil to dry out between waterings. Reduce frequency during winter months.
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Soil
Rich, well-draining potting mix with high organic matter content.
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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
Highly suitable for containers. Use a pot with ample drainage holes to prevent root rot.
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Family
Araceae
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Foliage Look
Large, lush, oval-shaped leaves with distinct creamy-green mottling and a prominent central vein.
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Foliage Rules
Leaves should be broadly ovate to lanceolate. Ensure variegation is represented as soft, mottled, or blotched patterns typical of Dieffenbachia.
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Fruit Flower Look
Rarely produces a greenish-white, spadix-style inflorescence partially enclosed by a leaf-like bract.
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Fruit Flower Rules
Flowering is not a primary trait. If present, it resembles a peace lily-like spathe. Do not emphasize fruit as it is not a feature for this plant.
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Growth Habit Rules
Maintain an upright, clumping form. Do not depict as a trailing or woody tree-like structure.
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Mature Plant Look
An upright, architectural houseplant with a full crown of large, patterned tropical leaves.
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Mature Stage Morphology
Upright, thick stems with large, alternate leaves. Foliage typically features creamy-white or light green variegation on darker green blades.
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Morphology Rules
Plant should appear dense and bushy. The main stem thickens significantly with age.
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Plant Faqs
How much light does Dieffenbachia 'Cougar' need? It prefers bright, indirect light to keep its variegation vibrant. Is this plant safe for pets? No, like all Dieffenbachia, it is toxic to cats and dogs if ingested. Can I grow this outdoors? Only in zones 10-12; otherwise, keep it as a seasonal patio or indoor plant. How often should I water? Water when the top inch of soil feels dry to the touch.
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Root Look
Healthy, white, fibrous roots visible within a stabilized plug medium.
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Soil Look
Dark, rich, peat-based potting substrate.
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Starter Stage
Compact starter plug with several juvenile leaves showing characteristic variegation patterns.
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Starter Stage Morphology
Small, succulent-like stems with foliage unfolding from a central point. Root system should be well-established in the plug.
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Video Voiceover Script
Welcome to Agardeni, where inspiration for gardening helps us imagine how and where we will grow Dieffenbachia Cougar. This is Dieffenbachia Cougar, available as 18, 36, and 72 plant starter trays through the Agardeni Marketplace. Let Dieffenbachia Cougar become part of your aspirational plan, helping you imagine the future indoor foliage environment you want to create. Its large, variegated leaves provide a stunning tropical display that brings life and architectural beauty to any shaded corner or living space. Establish your starter plug by moving it into a four-inch pot with quality, well-draining potting mix, then later move it to an appropriate final container or in-ground location when it is established. Find your inspiration with Agardeni. Explore real plants and real availability. Start. Plan. Grow.
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Youtube Tags
Dieffenbachia Dieffenbachia Cougar tropical plants houseplant care indoor gardening foliage plants Agardeni container plants tropical foliage clumping plants
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Youtube Video Summary
Discover the vibrant, patterned foliage of Dieffenbachia 'Cougar', an ideal tropical plant for indoor spaces or shaded gardens. This guide covers how to establish your starter plant and maintain its lush, upright growth for years of enjoyment.
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Youtube Video Title
How to Grow and Care for Dieffenbachia 'Cougar' Foliage
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