Cosmianthemum black Sp West Borneo

Plant Details

• Plant height: approx. 6–8 inches
• Pot size: 6–7 inches
• Leaf count: typically 2–4 leaves (may vary)
• Condition: fully rooted plant (not a cutting)

Natural Variation

Each plant is unique. Minor cosmetic imperfections such as light marks or slight leaf damage may occur due to natural growth and handling.

We carefully avoid plants with major issues and prioritize overall plant health.

Product Disclaimer & Quality Guarantee

Photos are for reference. You will receive a healthy, hand-selected plant similar to the images shown.

As each plant is unique, variations in leaf count, size, and shape are natural.
Our priority is always strong roots, good condition, and quality selection in every plant we ship.

Cosmianthemum Black sp. West Borneo, botanically listed as Cosmianthemum sp. West Borneo ‘Black’, is a rare tropical collector plant admired for its dark, mysterious foliage and refined rainforest appearance. Its compact form, rich leaf color, and uncommon identity make it a beautiful choice for collectors who enjoy rare understory plants with subtle but highly distinctive details.

Plant Characteristics

This rare Cosmianthemum features dark green to nearly black foliage with a textured surface and pronounced venation that becomes more noticeable as the plant matures. The leaves are typically compact, slightly elongated to oval in shape, and arranged in a low-growing habit that gives the plant a dense, elegant look. As a tropical understory plant, it stays relatively compact compared to many larger houseplants, making it suitable for plant cabinets, terrariums, vivariums, and curated rare plant displays. Mature plants may develop a fuller clumping appearance with naturally varied leaf size, tone, and texture.

Care Guide

Grow Cosmianthemum Black sp. West Borneo in low to bright indirect light, avoiding harsh direct sun that may stress the foliage. Keep the potting medium lightly moist but never soggy, allowing only the top layer to begin drying before watering again. This plant appreciates high humidity, ideally around 70% or higher, and stable warm temperatures between 68–82°F. Use a well-draining, moisture-retentive tropical mix with ingredients such as sphagnum moss, perlite, fine orchid bark, coco chips, and leaf litter to support healthy root growth.

Why Collectors Love It

Collectors love this plant for its deep black-toned foliage, compact rainforest habit, and rare Cosmianthemum identity. It is an excellent choice for anyone seeking a unique, humidity-loving tropical plant with a quiet, premium collector look.

Plant Details Disclaimer

“Plant Details: Height approx. 6–8 inches | Pot size: 6–7 inches | Fully rooted plant (not a cutting). Each plant is unique — minor natural variations in leaf count and size may occur. Photos are for reference; you will receive a healthy, hand-selected plant.”