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The foliage is made up of compound leaves with multiple small, glossy, rounded leaflets in deep green. This creates a dense, feathery canopy of leaves that gives the plant a soft, textured look while retaining an upright, columnar growth habit. Unlike many other tropical houseplants, Polyscias roble maintains a neat and vertical form, making it ideal for hallways, offices, or smaller living areas where floor space is limited but a tall, leafy display is desired.
Indoors, Polyscias roble usually grows to around 1.21.5 m tall, but with proper care and space it may reach over 2 m. It is popular for its ability to bring a natural, calming atmosphere into interiors with its elegant tree-like form.
Prefers bright, indirect light. It will tolerate medium light, but growth may be slower and foliage less dense. Avoid direct sunlight, which may scorch the delicate leaflets.
Keep the soil lightly moist but never soggy. Water when the top 35 cm of soil feels dry, and always allow excess water to drain away. Overwatering can cause root rot, while underwatering may lead to leaf drop.
Temperature: Thrives in 1826C. Protect from draughts and avoid temperatures below 15C.
Humidity: Prefers moderate to high humidity. In dry homes, mist occasionally or place near a humidifier.
Use a free-draining, peat-free houseplant compost enriched with perlite. Repot every 23 years in spring to refresh the soil and maintain healthy root growth.
Apply a balanced liquid fertiliser every 46 weeks during the growing season (spring and summer). Stop feeding in autumn and winter when growth slows.
Prune lightly to maintain shape and encourage bushiness. Remove any yellowing or damaged leaves promptly.
A steady grower, usually reaching 1.21.5 m indoors. With consistent care and occasional pruning, it develops into a dense, upright indoor tree.
Leaf drop: Usually caused by low humidity, underwatering, or sudden environmental changes.
Yellowing leaves: Often a sign of overwatering.
Pests: May occasionally attract scale insects or mealybugs; inspect regularly.
The name Polyscias means many-shaded in Greek, a reference to its dense foliage. The Roble variety is particularly valued for its ornamental, tree-like form in compact indoor spaces. With its elegant silhouette and air-purifying qualities, it is an excellent choice for those wanting an alternative to the more common ficus or dracaena houseplants.
Quick Care Summary
Light: Bright, indirect; tolerates medium
Water: Lightly moist; let topsoil dry slightly
Temperature: 1826C; avoid below 15C
Humidity: Average to high; mist in dry homes
Soil: Free-draining compost with perlite
Feed: Monthly in spring/summer
Growth: Upright indoor tree, 1.21.5 m; dense compound leaves with glossy green leaflets
