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Growing Inspiration
Inspiration for future Agardeni growing environments.
Cultivar
Alternanthera 'Red Thread'
Cultivar: Red Thread
Alternanthera 'Red Thread' is a compact, mounding ornamental perennial prized for its intense, dark red-purple foliage. Its unique, narrow leaf shape adds a delicate, airy texture to landscape borders and mixed container plantings. This heat-loving plant maintains its vibrant color throughout the season and serves as a excellent contrast against green or lime-colored garden companions.
Red Thread Alternanthera is a stunning ornamental foliage plant valued for its fine-textured, deep-red thread-like leaves. It provides a striking pop of color as a low-maintenance bedding plant or container accent.
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Grade B never means diseased, pest-infested, dying, materially mislabeled, or otherwise unhealthy plant material.
18-plant pack · Ship
$55.23 total
936 plants available · max 52 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.
USPS Priority Mail typically has a 2–3 day delivery objective after shipment, but delivery times are not guaranteed.
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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.
Agardeni is not responsible for plant damage caused by freezing temperatures, frost, excessive heat, or prolonged exposure to extreme temperatures at the destination.
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Cultivar Story
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Inspiration for future Agardeni growing environments.
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A realistic representation of the starter plants offered in 18, 36, and 72 plant quantities.
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Grow your aspirational plan into an inspirational garden.
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A closer look at the fruit, flower, foliage, or mature defining characteristics of this cultivar.
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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 with real plants. Plan with current marketplace availability. Grow your aspirational garden.
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See this cultivar from starter plant to aspirational garden.
Plant Profile
Key growing information first, with the complete reviewed cultivar profile available when you want it.
Sun
Full sun to partial shade; foliage color is deepest in full sun.
Water
Keep soil consistently moist but well-draining; avoid allowing the root zone to dry out completely.
Mature size
8-12 inches tall and 12-18 inches wide.
Hardiness
9-11
Growth habit
mounding, spreading
Plant type
perennial
Care, size, flowering, climate, soil, health, and additional reviewed data.
Good to know
Performs best when kept consistently moist and thrives in high heat and humidity; provide protection from frost as it is typically grown as an annual in cooler climates.
Thrives in tropical and subtropical temperatures; sensitive to frost and cold drafts.
Primarily grown for foliage; insignificant white or greenish flowers may appear but are often removed to prioritize foliage density.
Everyday care, growth, feeding, and pruning guidance.
Sun / light
Full sun to partial shade; foliage color is deepest in full sun.
Growth rate
moderate
Fertilizer
Apply a balanced, water-soluble fertilizer monthly during the active growing season to support lush foliage development.
Pruning
Pinch back stems occasionally to encourage a bushier, denser growth habit.
Care notes
Performs best when kept consistently moist and thrives in high heat and humidity; provide protection from frost as it is typically grown as an annual in cooler climates.
How the plant grows and the space it needs at maturity.
Mature size
8-12 inches tall and 12-18 inches wide.
Growth habit
mounding, spreading
Spacing
12 inches
Flowering, fruiting, pollination, bloom, and harvest behavior.
Flowering / fruiting
Primarily grown for foliage; insignificant white or greenish flowers may appear but are often removed to prioritize foliage density.
Cold, heat, chill, and regional growing considerations.
Hardiness zones
9-11
Temperature
Thrives in tropical and subtropical temperatures; sensitive to frost and cold drafts.
Moisture, drainage, soil, and pH preferences.
Watering
Keep soil consistently moist but well-draining; avoid allowing the root zone to dry out completely.
Soil
Rich, well-draining garden soil or standard, high-quality potting mix.
Soil pH
6.0-7.0
19 additional reviewed fields from this Plant.id.
Container Growing
Excellent for containers and hanging baskets due to its compact habit; ensures moisture is maintained as containers dry faster than ground soil.
Family
Amaranthaceae
Foliage Look
deep red, fine-textured, needle-like, lanceolate leaves
Foliage Rules
Leaves are characteristically narrow and thread-like, deep red to burgundy, with an alternate arrangement.
Fruit Flower Look
insignificant, tiny white clusters (if present)
Fruit Flower Rules
Flowering is infrequent and secondary; images should prioritize the leaf texture and color.
Growth Habit Rules
Should appear as a low, mounding mass, not an upright shrub or vine.
Mature Plant Look
dense, dark red, mounded groundcover
Mature Stage Morphology
A dense, low-growing mound of fine-textured foliage that holds a uniform color.
Morphology Rules
Maintain a focus on the fine, thread-like texture of the leaves; avoid images showing broad-leaf varieties.
Plant Faqs
How much sun does Red Thread Alternanthera need? It thrives in full sun, though partial shade is acceptable in very hot climates. Can it be grown in containers? Yes, its mounding habit makes it an excellent choice for containers and window boxes. Is this plant winter hardy? It is hardy only in zones 9-11; in colder regions, it should be treated as an annual. Does it produce flowers? It is grown for its foliage; flowers are insignificant and do not contribute to the plant's ornamental appeal.
Root Look
white, active, healthy plug root system
Soil Look
dark, rich, well-draining potting soil
Starter Stage
Small, plug-sized plants with distinct, thread-like reddish foliage starting to branch.
Starter Stage Morphology
Young, narrow leaves in deep red-purple; stems are thin and flexible.
Video Voiceover Script
Welcome to Agardeni, where inspiration for gardening helps us imagine how and where we will grow Red Thread Alternanthera. This is Red Thread Alternanthera, available as 18, 36, and 72 plant starter trays through the Agardeni Marketplace. Let this vibrant foliage become part of your aspirational plan, helping you imagine the future garden beds and container designs you want to create. Focusing on its unique, thread-like leaf structure, this plant offers an intense deep-red color that remains consistent and bold throughout the season. Establish your starter plug in a four-inch pot with quality, well-draining mix, then move it to its final location once established. Find your inspiration with Agardeni. Explore real plants and real availability. Start. Plan. Grow.
Youtube Tags
Alternanthera Red Thread ornamental foliage red garden plants container gardening bedding plants landscape design Agardeni foliage texture colorful groundcover
Youtube Video Summary
Discover the beauty of Alternanthera 'Red Thread', a compact plant known for its fine, deep red foliage. Ideal for borders and containers, this plant adds vibrant color and unique texture to any garden design.
Youtube Video Title
Growing Red Thread Alternanthera: Vibrant Ornamental Foliage
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Possible future seller options for 2.5-inch, 4-inch, and 1-gallon finished plants.