Aglaonema ‘Olive Red’

Cultivar and genus background

Olive Red is a horticultural Aglaonema cultivar defined by the contrast between olive-green foliage and coral-pink veins. The warm venation is a cultivated trait carried on the broad leaves and upright cluster of short stems characteristic of Chinese evergreens.

The genus comes from the tropical and subtropical regions of Asia, where its relatives grow as evergreen understory herbs beneath a warm, humid forest canopy. Basal shoots gradually build a fuller clump, giving Olive Red its leafy, self-supporting growth habit.

Olive Red care guide

• Light: Bright filtered light of about 10,000–20,000 lux helps maintain the compact clump and visible pink venation. Avoid a sudden move into intense direct sunlight.
• Watering: Wait until approximately 25–40% of the medium has dried, then water the pot thoroughly and discard all runoff. Use the moisture inside the root ball as the guide because drying time changes with the growing conditions.
• Warmth and air: Keep Olive Red at 18–27 °C and protect it below 15 °C. Humidity around 50–60% is comfortable when paired with ordinary room airflow and distance from heaters.
• Soil and repotting: Plant in an aerated mix with coir or peat, fine bark and a mineral drainage component. Move to a slightly larger draining pot only when roots fill the current container or the substrate has broken down.
• Nutrition: Feed modestly during active leaf production. Suspend fertiliser when development pauses, and wash visible salt residue from the mix with a generous plain-water rinse.
• Grooming: Support each leaf as you wipe away dust and keep water from remaining in the tight centre of the clump. Remove only fully yellow or damaged lower leaves with clean tools.
• Propagation: Divide rooted shoots from the base, or use a cane section that contains viable stem tissue. A detached leaf lacks the stem tissue needed to grow into a new plant.

Olive Red problems and solutions

• Leaves stay mostly green: Olive Red is naturally green-dominant, with warm colour concentrated in the veins and petioles. Healthy leaves keep a green surface, with warm colour concentrated in the veins and petioles.
• Tips become brown: Check for accumulated fertiliser salts, severe dry periods and direct heater airflow. Rinse the substrate thoroughly, improve watering consistency and move the plant away from the hot draught.
• Yellow leaves with a heavy pot: Persistent wetness can injure roots and short stems. Pause watering, improve drainage and inspect below the soil if several leaves decline or the base feels soft.
• Dark collapsed patches: Cold can rapidly damage Aglaonema tissue. Restore stable warmth, avoid wetting the injured area and cut away only tissue that remains soft or continues expanding.
• Bleached area on one side: Sudden direct sun is more likely than a nutrient problem when damage follows the window-facing surface. Return it to bright filtered light.
• Hidden pests: Examine the vein junctions, undersides and crowded leaf bases for aphids, scale insects, mites and mealybugs. Quarantine the pot and use a pest-specific control until new leaves emerge clean.

Handling Olive Red

This plant contains insoluble calcium oxalate crystals and is unsafe to chew. Biting it can cause immediate mouth pain and irritation, swelling of the lips or tongue, drooling, vomiting and difficulty swallowing. Sap may also irritate skin and eyes.

Keep the plant away from children and pets, and wash hands and tools after cutting it. For human mouth exposure, remove plant pieces, rinse and spit with water, then contact a local poison centre. Rinse exposed skin or eyes with clean water for at least 15 minutes. Contact a veterinarian promptly after pet exposure, and seek urgent help for breathing or swallowing difficulty, severe swelling or collapse.

The botanical name explained

In Aglaonema, the Greek aglaos means “bright” or “splendid”, while nema means “thread”. Botanists generally connect the name with the thread-like stamens.