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Growing Inspiration
Inspiration for future Agardeni growing environments.
ornamentalFamily: BegoniaceaeGenus: Begonia
Cultivar
Kotobuki Rex Begonia
Begonia 'Kotobuki'
Cultivar: Kotobuki
The 'Kotobuki' Begonia features intricate, swirling leaf patterns characterized by a mix of deep silver, green, and occasional reddish-purple hues. This compact, rhizomatous plant maintains a tidy habit, making it ideal for desk displays or tabletop collections. Its ornamental foliage provides year-round visual interest, thriving in environments with consistent humidity and moderate light. This cultivar is highly valued for its striking contrast and elegant texture.
Begonia 'Kotobuki' is a stunning Rex begonia variety prized for its unique, painterly foliage patterns that add vibrant color to indoor spaces. It is an excellent choice for shaded containers or bright, indirect indoor locations.
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
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Cultivar Video Coming Soon
See this cultivar from starter plant to aspirational garden.
Plant Profile
Grow Kotobuki Rex Begonia 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; avoid direct midday sun which can scorch the delicate leaves.
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Water
Keep soil evenly moist but not waterlogged; allow the top half-inch of soil to dry out between waterings.
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Mature size
8-12 inches tall and wide
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Hardiness
10-12 (typically grown as a houseplant in cooler climates)
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Growth habit
Compact, rhizomatous 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
Avoid wetting the foliage directly during watering to prevent fungal issues; bottom watering is preferred.
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Climate note
Prefers consistent room temperatures between 65-75 degrees Fahrenheit; protect from cold drafts and temperatures below 55 degrees.
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Flower / fruit
Grown primarily for its foliage; occasionally produces small, inconspicuous pale pink flowers.
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; avoid direct midday sun which can scorch the delicate leaves.
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Growth rate
Moderate
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Fertilizer
Apply a balanced liquid houseplant fertilizer diluted to half-strength once every 4-6 weeks during the active growing season.
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Pruning
Remove dead or yellowing leaves at the base as needed to keep the plant looking tidy and promote airflow.
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Care notes
Avoid wetting the foliage directly during watering to prevent fungal issues; bottom watering is preferred.
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
8-12 inches tall and wide
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Growth habit
Compact, rhizomatous clumping perennial
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Spacing
10-12 inches apart in groupings
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
Grown primarily for its foliage; occasionally produces small, inconspicuous pale pink flowers.
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 (typically grown as a houseplant in cooler climates)
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Temperature
Prefers consistent room temperatures between 65-75 degrees Fahrenheit; protect from cold drafts and temperatures below 55 degrees.
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 evenly moist but not waterlogged; allow the top half-inch of soil to dry out between waterings.
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Soil
Well-draining, peat-based potting mix amended with perlite or vermiculite 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
Perfect for indoor containers; ensure the pot has drainage holes to prevent root rot.
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Family
Begoniaceae
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Foliage Look
Velvety, heart-shaped leaves with silver, emerald green, and faint purple veins.
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Foliage Rules
Leaves are asymmetrical and heart-shaped. Texture is slightly puckered or velvety.
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Fruit Flower Look
Small, delicate, light pink flowers on slender, upright stalks.
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Fruit Flower Rules
Flowers are secondary to foliage and should not be a focal point in imagery.
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Growth Habit Rules
Maintain as a compact, low-spreading mound. Do not depict as tall or vine-like.
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Mature Plant Look
A lush, dense, compact mound of variegated, swirling-patterned foliage.
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Mature Stage Morphology
Dense cluster of heart-shaped leaves with distinct serrated edges and elaborate silver-green markings.
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Morphology Rules
Ensure foliage exhibits the signature silver-green variegation pattern consistent with the Rex-cultorum type.
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Plant Faqs
How much light does a 'Kotobuki' Begonia need? It thrives in bright, indirect light away from harsh direct sun. Does this plant like high humidity? Yes, it prefers moderate to high humidity levels typical of indoor environments. How do I water my Rex Begonia? Water consistently but avoid getting the leaves wet; keep the soil lightly moist. Can I grow this plant in a small pot? Yes, its compact growth habit makes it well-suited for small tabletop containers.
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Root Look
Fine, healthy white fibrous roots visible in a small plug.
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Soil Look
Dark, rich, well-draining peat-based potting mix.
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Starter Stage
Small, well-rooted plug with 2 to 4 young, characteristic leaves.
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Starter Stage Morphology
Young leaves may show less color intensity than mature foliage; rhizome structure may be barely visible.
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Video Voiceover Script
Welcome to Agardeni, where inspiration for gardening helps us imagine how and where we will grow Kotobuki Rex Begonia. This is Kotobuki Rex Begonia, available as 18, 36, and 72 plant starter trays through the Agardeni Marketplace. Let Kotobuki Rex Begonia become part of your aspirational plan, helping you imagine the future container garden you want to create. The defining feature of this variety is its striking, painterly foliage that displays a unique blend of silver and green patterns. Establish your starter plug in a four-inch pot using quality well-draining mix, then move to a permanent container once established. Find your inspiration with Agardeni. Explore real plants and real availability. Start. Plan. Grow.
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Youtube Tags
Begonia Rex Begonia Kotobuki Tropical Plants Houseplants Indoor Gardening Variegated Foliage Agardeni Container Gardening Starter Plants
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Youtube Video Summary
Begonia 'Kotobuki' is a beautiful Rex begonia cultivar known for its painterly, silver-green variegated foliage. It is an ideal tropical houseplant for indoor containers and shaded tabletop displays.
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Youtube Video Title
Growing Begonia 'Kotobuki' Rex Begonia
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Future Buyer Brand Sellers
Possible future seller options for 2.5-inch, 4-inch, and 1-gallon finished plants.