Queen Palm
Syagrus Romanzoffiana • Coco Plumoso
The Essence
"The Queen palm (Syagrus romanzoffiana), also known as the Cocos palm, Jeriva, or Pindo palm, is one of the most widely planted ornamental palms in subtropical regions worldwide. A medium-sized, single-trunked feather palm, it is valued for its fast growth and graceful arching crown, and it is relatively cold-hardy for a tree with such a tropical look. Native to South America, it reaches maturity at up to 15 m (49 ft) tall, carrying a smooth gray trunk and long arching leaves whose many slender leaflets give the canopy its airy, feathery appearance. In spring and summer large inflorescences of cream-colored flowers emerge from within the canopy, followed by heavy clusters of bright orange fruits. The fruit is a hard nut wrapped in a thin layer of fibrous, sticky orange flesh that tastes like a mixture of plum and banana. Hardy to about -5 degrees C (USDA zone 9a-9B), it is widely grown outdoors in mild climates and under glass where winters are colder, as in the UK."
The species epithet romanzoffiana honors the Russian statesman Nikolay Rumyantsev (Romanzoff) (1754-1826), Russia's Foreign Minister and Imperial Chancellor, who sponsored the first Russian circumnavigation of the globe.
The palm carries the name of a Russian statesman because it commemorates Nikolay Rumyantsev, the patron of Russia's first round-the-world voyage. Today the species is also of practical value: it hybridizes with Butia to produce the cold-hardy mule palm (x Butiagrus nabonnandii).
Natural Habitat
Syagrus romanzoffiana is native to South America, ranging from eastern and central Paraguay and northern Argentina north to eastern and southern Brazil and northern Uruguay; POWO lists its native botanical regions as Argentina Northeast, the Northeast, South, Southeast, and West-Central regions of Brazil, Paraguay, and Uruguay. Within this range it is a common tree in many habitats, growing primarily in the seasonally dry tropical biome. It has also been introduced beyond South America, including to Florida, El Salvador, Honduras, Trinidad and Tobago, Mauritius, and the Australian states of New South Wales and Queensland.
Specimen Gallery Under Curation
Discovering authentic visual assets in the field...
Biology & Morphology
"A medium-sized, single-trunked pinnate (feather) palm reaching up to 15 m (49 ft) tall, with a smooth gray trunk 8-15 inches in diameter and graceful arching leaves bearing up to around 300 (occasionally as many as 494) leaflets, followed by heavy clusters of bright orange fruits."
Morphology
Symmetrical columnar trunk with characteristic leaf-scar patterning and lignified outer cortex.
Adventitious root system spreading radially to maximize hydraulic intake in competitive soil matrices.
Distinctive unknown habit and medium stature providing a unique architectural profile.
Foliage
Vibrant green canopy featuring characteristic frond architecture optimized for photon interception and transpiration efficiency.
Specialized green tissues exhibiting moderate metabolic expansion rates.
Reproduction
Complex inflorescence branching typical of the Syagrus clade, exhibiting seasonal reproductive synchrony.
Nutrient-dense drupes encased in a fibrous pericarp, optimized for protection and dispersal.
Dormant embryonic tissues with high endosperm density, characteristic of resilient Syagrus specimens.
Ecology
Active rhizosphere communication with mycorrhizal fungal networks, enhancing phosphorus and micronutrient uptake.
Interlocked with local entomological vectors, primarily Meliponini bees or specialized coleoptera.
Gravity-mediated and animal-vectored dispersal mechanisms ensuring regional genetic distribution.
Germination & Propagation
Terminology
The first sign of life when the primary root breaks through the seed coat.
The specialized 'lid' or cap on the seed that must be displaced for emergence.
The hormonal balance between Gibberellic Acid (growth) and Abscisic Acid (dormancy).
Because germination is so uneven, expect seedlings to emerge over a long and unpredictable window rather than all at once.
Cultivation & Care
Light
Full sun. The RHS recommends a sheltered, south- or west-facing position.
Water
Likes moist but well-drained soil; water freely during active growth and sparingly in winter.
Soil
Grows in loam that is moist but well-drained, and tolerates acid, alkaline, and neutral pH. However, it generally performs poorly on alkaline soils because reduced micronutrient availability causes deficiencies. It is moderately tolerant of salt spray.
This is a tropical-looking palm that is only moderately cold-hardy. It is rated for USDA zone 9B (above 25 degrees F) and is hardy to roughly -5 degrees C (zone 9a). In the UK the RHS gives it hardiness rating H1B, meaning it needs a minimum of about 10-15 degrees C and is grown under glass. In Florida, UF/IFAS has assessed it as potentially invasive, so it should be used with caution to prevent escape into natural areas.
Pests, Diseases & Care
Pests
Tetranychus urticae (Spider Mites)
Stippling and chlorosis on leaf undersides, reducing photosynthetic efficiency.
Frequent high-pressure water sprays and applications of Abamectin or Neem Oil.
Aspidiotus destructor (Coconut Scale)
Yellowing of fronds due to sap loss; can lead to sooty mold development.
Introduction of Coccinellid predators or systemic Imidacloprid treatment.
Diseases
Graphiola phoenicis (False Smut)
Small black pustules on fronds, primarily an aesthetic concern but reduces vigor.
Improved air circulation and occasional copper-based fungicidal sprays.
Bud Rot (Phytophthora palmivora)
Collapse and rotting of the spear leaf; highly lethal if the meristem is reached.
Fosetyl-Al application and immediate protection from overhead irrigation.
Nutritional Deficiencies
Uniform light green to yellow coloration of the entire canopy.
Balanced slow-release N-P-K (18-18-18) application.
Interveinal chlorosis on the youngest fronds, often due to high soil pH.
Chelated iron (EDDHA) soil drench or foliar spray.
Sources & Conservation
Curated- Syagrus romanzoffiana (Cham.) Glassman | Plants of the World Online (POWO) | Kew Science · accessed 2026-06
- ENH-767/ST609: Syagrus romanzoffiana: Queen Palm - UF/IFAS Extension (Ask IFAS) · accessed 2026-06
- Syagrus romanzoffiana - Wikipedia · accessed 2026-06
- Syagrus romanzoffiana (queen palm) - Royal Horticultural Society (RHS) · accessed 2026-06