Anthurium (Anthurium andraeanum)

About Anthurium

Anthurium (Anthurium andraeanum) is the flowering houseplant that delivers what roses, orchids, and cut flower bouquets only promise temporarily: vivid, glossy color that lasts for weeks — not days — and renews itself continuously throughout the year. Each flower (technically a colored spathe surrounding a central spadix) emerges in brilliant red, pink, white, coral, or purple, maintains its waxy, polished appearance for 6-8 weeks, and is followed by another. A well-grown anthurium in Philippine conditions is essentially a permanent flowering display — living color that never needs replacing.

The plant's visual signature is its spathe: a modified leaf that has evolved into a broad, heart-shaped, intensely colored bract with a lacquer-like surface that gleams as if hand-polished. The true flowers are tiny and densely packed on the finger-like spadix that protrudes from the center of the spathe — a structure shared by all aroids (monstera, peace lily, philodendron). But while most aroids have subtle or white spathes, anthurium has evolved some of the most vivid, saturated colors in the plant kingdom — presumably to attract specific pollinators in its native South American rainforests.

Anthurium belongs to the Araceae (aroid) family and is the largest genus in the family, with over 1,000 described species. The genus is divided broadly into flowering anthuriums (grown for their colorful spathes, primarily A. andraeanum hybrids) and foliage anthuriums (grown for their spectacular velvety or textured leaves, such as A. clarinervium, A. crystallinum, and A. warocqueanum). In the Philippines, flowering anthuriums are by far the most commonly grown — they are among the most affordable and accessible flowering houseplants in the country, available at every garden center, flower market, supermarket plant section, and weekend plant bazaar.

The Philippines has a special relationship with anthurium. While the plant originates from South American tropical forests, the Philippine climate — warm temperatures year-round, high humidity, abundant filtered light — so closely matches anthurium's native conditions that the Philippines has become one of the world's significant commercial anthurium producers. Philippine nurseries export cut anthurium flowers internationally, and local hybridizers have developed numerous varieties adapted to Philippine growing conditions. For Filipino growers, anthurium is not an exotic import requiring careful accommodation — it is a plant that genuinely, effortlessly thrives in ordinary Philippine homes.

History & Discovery

Anthurium andraeanum is native to the tropical rainforests of Colombia and Ecuador, where it grows as an epiphyte on trees in humid montane forests at elevations of 300-1,500 meters. The genus name Anthurium comes from Greek: anthos (flower) + oura (tail) — a reference to the tail-like spadix that projects from the center of the spathe. The species was described by French botanist Édouard André in 1877, who collected specimens during his expedition to Colombia. André introduced the plant to European horticulture, and it was named in his honor: andraeanum.

Anthurium quickly became prized in European conservatories and greenhouses for its exotic appearance and long-lasting blooms. Commercial cultivation expanded in the 20th century, with Hawaii becoming a major production center from the 1940s onward, and the Netherlands dominating global cut flower production. In Southeast Asia, the Philippines and Thailand emerged as significant producers, with Philippine nurseries particularly active in breeding new hybrids adapted to tropical lowland conditions.

In Filipino plant culture, anthurium has been a household staple for decades — one of the most commonly gifted plants for housewarmings, birthdays, and celebrations. During the 2020-2021 plantita/plantito craze, the collector market for rare foliage anthuriums (clarinervium, crystallinum, warocqueanum, and various hybrids) exploded, with rare specimens commanding thousands of pesos. Meanwhile, standard flowering anthuriums remained affordable and ubiquitous — the reliable, beautiful everyday plant that anchors Filipino indoor gardens. Today, both categories coexist: common flowering anthuriums as accessible, year-round bloomers, and rare foliage types as collector plants for enthusiasts.

How to Plant Anthurium in the Philippines

Anthurium is one of the most widely available houseplants in the Philippines. Standard red-spathed plants cost as little as ₱100-300 at Dangwa, Cartimar, and provincial plant markets. Pink, white, and purple varieties range ₱150-500. Specialty 'obake' (multicolored) types cost ₱300-800. Foliage collector types range ₱500-10,000+. Propagation by division is the standard method — the plant naturally produces multiple crowns that separate easily.

Propagation by Division

1. Wait for multiple crowns: Mature anthuriums produce several growth points from the base, each developing its own leaves and flower stalks. A plant with 3-4 visible crowns is an ideal division candidate. Single-crowned plants should be allowed to mature further before dividing.
2. Remove and separate: Water the plant a day before dividing. Carefully remove the entire root mass from the pot. Gently tease apart the individual crowns, preserving as many roots as possible on each division. Each piece needs at least 3-4 leaves and a healthy root cluster. Use a clean, sharp knife to cut through stubborn root connections. Anthurium roots are relatively delicate — handle gently to minimize breakage.
3. Prepare chunky, airy potting mix: Anthurium is an epiphyte — its roots grow on tree bark in the wild, not in dense ground soil. Mix 1 part orchid bark (or coconut husk chips) + 1 part perlite + 1 part coco coir or peat. The mix should feel chunky and loose with visible bark pieces. Air circulation around the roots is critical — standard dense potting soil suffocates anthurium roots and causes rot. Pre-made orchid or aroid mixes work well and are widely available at Philippine garden shops.
4. Plant with crown at surface level: Position each division in its pot so the crown (where leaves emerge) sits at or slightly above the soil surface. Do not bury the crown deeply. If aerial roots are visible above the soil line, leave them exposed — they absorb moisture from the humid air and are an important part of anthurium's epiphytic physiology. Fill gently around the roots without compacting the mix.
5. Place in bright indirect light: Bright indirect light is essential for flowering. Near an east-facing window, on a covered balcony with filtered light, or in a bright room. Direct sun fades and scorches the spathes and leaves. Low light maintains green foliage but drastically reduces flowering — an anthurium in a dark corner may never produce a spathe. For year-round blooming, light is the most important factor.
6. Maintain consistent moisture and humidity: Water when the top 2-3 cm of mix dries — roughly every 5-7 days in Manila conditions. The chunky mix drains quickly, preventing waterlogging. Manila's natural humidity (60-80%) is ideal for anthurium. In air-conditioned rooms, mist the aerial roots and leaves every few days or use a humidity tray. New divisions may take 1-2 months to establish and begin producing new flowers.

Best Planting Season

Anthurium can be planted and divided year-round in the Philippines — the warm, humid climate provides suitable conditions in every month. Division recovery is slightly faster during the warmer months (April-October). There is no true dormancy in Philippine conditions — anthurium grows and flowers continuously year-round with consistent care.

Care Guide

Sunlight

Bright indirect light is the key to continuous flowering. In the wild, anthurium grows in the filtered light beneath the rainforest canopy — it wants abundant light but not direct sun. Near an east-facing window, on a covered patio or balcony, or in a bright room with filtered light are ideal positions. Direct sun bleaches and scorches the spathes (turning vivid red into washed-out pink) and burns the leaves. Low light sustains foliage growth but severely inhibits flowering — if your anthurium has healthy green leaves but no flowers, insufficient light is almost certainly the cause. For best flowering: the brightest spot that does not receive direct sunbeams.

Water

Moderate — keep the chunky mix evenly moist but never waterlogged. Water when the top 2-3 cm feels dry, roughly every 5-7 days in Manila conditions. The airy bark-based mix drains rapidly, making overwatering less likely than with dense soil — but chronic wetness still causes root rot. Anthurium's aerial roots absorb ambient humidity, supplementing root watering. Water thoroughly until it drains from the bottom. Let tap water sit overnight if heavily treated with chlorine, as anthurium roots are moderately sensitive. Yellow lower leaves with soggy mix indicate overwatering; wilting with dry mix indicates underwatering.

Soil

Chunky, airy, epiphytic mix — this is non-negotiable for long-term anthurium health. Standard dense potting soil retains too much moisture and compacts around anthurium's delicate roots, causing rot. Ideal: 1 part orchid bark + 1 part perlite + 1 part coco coir. The mix should have visible bark chips and feel loose — anthurium roots need air pockets. Pure sphagnum moss also works (replace every 6-12 months as it decomposes and compacts). Some growers use LECA semi-hydro with excellent results. pH 5.5-6.5 (slightly acidic). Never use garden soil, heavy clay, or mixes that compact into a dense mass.

Humidity & Temperature

Anthurium loves humidity — and Manila delivers. Natural ambient humidity of 60-80% is ideal and requires no accommodation in most Philippine homes. Air-conditioned rooms (lower humidity) may cause brown leaf tips and reduced flowering. Solutions for AC rooms: mist leaves and aerial roots every few days, group plants together, or place on a pebble tray with water. Temperature sweet spot: 25-30°C — exactly Manila's average range. Below 15°C causes growth cessation and leaf damage. Above 35°C causes stress — provide shade during extreme heat. For flowering anthurium, Philippine conditions are genuinely among the best in the world.

Fertilizer

Monthly feeding during the growing season promotes continuous flowering. Use balanced liquid fertilizer (10-10-10 or 20-20-20) diluted to half strength, or a phosphorus-rich formulation (10-30-20) to specifically encourage bloom production. Organic alternatives: dilute worm casting tea, compost tea, or seaweed extract. Over-fertilizing causes salt damage to the sensitive roots — if brown root tips or leaf tip burn appear, flush the mix with plain water. Some anthurium specialists recommend quarter-strength fertilizer with every watering rather than full-strength monthly — this provides constant low-level nutrition.

Pruning & Maintenance

Cut spent flower stalks at the base once the spathe turns green or brown — this redirects energy toward new blooms. Remove yellowing lower leaves by cutting at the base. Wipe glossy leaves with a damp cloth monthly to maintain their shine and remove dust. Aerial roots growing above the soil surface are normal and healthy — do not cut them. If the plant develops a visible stem (trunk) as it grows taller, the exposed base can be wrapped with moist sphagnum moss to encourage new aerial roots. Repot every 1-2 years or when the root system fills the pot.

Growing Medium Options

Ornamental Uses

Anthurium's combination of vivid, long-lasting flowers and glossy foliage makes it one of the most versatile flowering ornamental plants for both indoor display and commercial use. The plant provides permanent living color where cut flowers provide only temporary beauty — a significant practical and economic advantage for Filipino homes and businesses.

Interior Design Applications

• Tabletop flowering accent: Compact anthuriums (30-50 cm) are ideal for dining tables, coffee tables, office desks, and shelving — providing the color and elegance of a fresh flower arrangement that never needs replacing and lasts for years
• Living centerpiece: Red or pink anthuriums serve as permanent centerpieces for dining rooms, reception areas, and event spaces — eliminating the recurring cost and waste of cut flower arrangements
• Bathroom and kitchen color: The humidity-loving nature makes anthurium ideal for Philippine bathrooms — it thrives in warm, humid conditions and provides vivid color in these typically utilitarian spaces
• Color coordination: The wide range of spathe colors (red, pink, white, purple, coral, bicolor) allows precise color matching with interior design palettes — designers use anthurium as a living color accent
• Gift plant: Anthurium is one of the most commonly gifted plants in the Philippines — for housewarmings, birthdays, weddings, and celebrations. Its long-lasting blooms and relatively easy care make it a gift that continues giving

Landscape Uses

• Shaded garden beds: Mass-planted under trees or along building foundations where direct sun never reaches — anthurium creates vibrant, continuously flowering ground-level displays in deep shade
• Covered patio and veranda: Potted or planted along covered walkways, verandas, and carports — the humid, filtered-light conditions produce vigorous growth and prolific flowering
• Commercial cut flower production: Grown commercially in Philippine nurseries (Mindanao, Visayas) for the domestic and export cut flower market — anthurium cut flowers last 2-4 weeks in a vase
• Resort and hotel landscaping: Used extensively in Philippine hotel lobbies, restaurant interiors, spa gardens, and resort common areas — the perpetual flowering and low maintenance suit commercial applications perfectly

Air Quality & Oxygen

Anthurium contributes to indoor air quality through standard photosynthetic activity — absorbing CO₂ and releasing oxygen. Its glossy leaves have moderate transpiration rates that help maintain indoor humidity levels — beneficial in air-conditioned spaces. While anthurium was not included in NASA's original Clean Air Study, related aroid species (peace lily, pothos) performed well in VOC removal. Anthurium's moderate-sized glossy leaves provide a reasonable photosynthetic surface area for a compact houseplant.

The primary air quality value of anthurium for Filipino homes lies in its continuous, year-round photosynthetic activity — in the Philippines' warm climate, anthurium never enters dormancy, meaning it actively produces oxygen and absorbs CO₂ every day of the year. Its preference for bright indirect light positions it near windows where photosynthetic activity is highest. For maximum air quality benefit, maintain multiple well-lit anthuriums with clean, dust-free leaves — regular wiping maintains both appearance and gas exchange efficiency.

Toxicity & Safety

Humans: Anthurium contains insoluble calcium oxalate crystals (raphides) in all parts — leaves, stems, spathes, and roots. Chewing or ingesting plant tissue releases microscopic needle-shaped crystals that puncture mouth and throat tissues, causing immediate intense burning, swelling, drooling, and difficulty swallowing. The reaction is painful but not life-threatening. The colorful spathes may attract young children — keep plants out of reach. Skin contact with sap may cause mild irritation in sensitive individuals. Wash hands after handling, especially after pruning or dividing.

Pets: The ASPCA lists anthurium as toxic to dogs and cats. The calcium oxalate crystals cause the same oral irritation in pets: pawing at the mouth, drooling, oral swelling, vomiting, and difficulty swallowing. The intense pain usually prevents pets from eating significant amounts. The colorful, waxy spathes may attract curious pets more than plain green foliage plants — the vivid color and interesting texture can draw investigation. Place on elevated surfaces, plant stands, or in rooms pets cannot access. If ingestion occurs, offer water and contact your veterinarian if symptoms persist beyond a few hours.

Common Pests & Diseases in the Philippines

• Mealybugs: White, cottony masses at leaf bases, in the central crown, and along flower stalks — the most common anthurium pest in the Philippines. Remove with alcohol-dipped cotton swab. Neem oil spray for larger infestations. Check the tight spaces where leaf petioles emerge — mealybugs hide there.
• Scale insects: Brown or tan shell-like bumps on stems and leaf midribs — stationary sap-sucking pests. Scrape off with a soft brush. Neem oil application. More common on outdoor anthuriums than indoor specimens.
• Thrips: Tiny, slender insects causing silvery streaks and stippled damage on leaves and spathes — increasingly problematic in the Philippine plant community. Neem oil, insecticidal soap, or systemic insecticide. Quarantine new plants before adding to your collection. Thrips damage on spathes is particularly frustrating as it ruins the display.
• Root rot: Mushy, brown, foul-smelling roots from overwatering or dense, waterlogged soil — the most serious anthurium disease. Prevention: use chunky, airy mix; ensure pot drainage; water only when mix approaches dryness. Treatment: unpot, trim all mushy roots, repot in fresh mix, reduce watering. Switching to LECA can prevent recurrence.
• Bacterial blight (Xanthomonas): Water-soaked brown or black lesions on leaves, sometimes with yellow halos — can spread rapidly in warm, wet conditions. Remove affected leaves immediately. Avoid overhead watering. Improve air circulation. Isolate affected plants. Severe cases may require copper-based bactericide. This is a serious disease that can kill the plant if not addressed early.
• Anthracnose: Brown, dry, sunken spots on leaves and spathes — a fungal disease favored by warm, wet conditions. Remove affected leaves. Reduce leaf wetness. Improve air circulation. Fungicide for severe cases. More common during the Philippine wet season.

Frequently Asked Questions

Sources

• Plants of the World Online — Anthurium andraeanum Linden ex André. Royal Botanic Gardens, Kew.
• Croat, T.B. (1988). Ecology and Life Forms of Araceae. Aroideana, 11(3).
• ASPCA — Animal Poison Control Center: Toxic and Non-Toxic Plant Lists — Anthurium.
• Henny, R.J. & Chen, J. (2003). Cultivar Development of Ornamental Foliage Plants. Plant Breeding Reviews, 23.
• Philippine Council for Agriculture and Fisheries — Anthurium Production Guide.

This guide is for informational purposes. Consult local plant nurseries for variety-specific care advice.