Phoenix sylvestris
silver date palm
Indian subcontinent (India, Pakistan, Nepal, Bangladesh, Sri Lanka)
Overview
Phoenix sylvestris is the silver date palm (Indian date palm), growing 300–600 inches (750–1,500 cm) tall with a single trunk 12–18 inches (30–45 cm) in diameter marked by a diamond pattern of old leaf base scars. Blue-gray to silver-green pinnate fronds 96–180 inches (240–450 cm) — the blue-silver frond color distinguishes it from the green-frond P. dactylifera (true date palm). Sharp spines 3–6 inches (7–15 cm) on the lower petiole (leaf stalk) where the leaflets are modified into rigid thorns — a genus trait shared with P. dactylifera and P. canariensis. Yellow flowers in large branched inflorescences 24–36 inches (60–90 cm). Small orange to reddish-brown fruit 0.75 inch (18 mm) in hanging clusters — edible but with a thin layer of flesh compared to commercial dates (P. dactylifera). In India, the trunk sap is tapped to produce palm sugar (jaggery), a fermented toddy, and a fresh drink (neera) — the sap tapping industry is a cultural tradition in West Bengal and other Indian states. Native to the Indian subcontinent. Dioecious: separate male and female trees — only females produce fruit. Hardy to 20°F (−7°C) when mature — hardier than P. dactylifera (25°F / −4°C). Full sun (8+ hours). Drought-tolerant once established. Adapts to alkaline soils. Non-toxic. Deer-resistant (spiny petioles). Growth rate is moderate. Zones 9–11.
Native Range
Native to the Indian subcontinent — India, Pakistan, Nepal, Bangladesh, and Sri Lanka, growing in dry forests and cultivated for sap tapping.Suggested Uses
Grown as a specimen or avenue palm in zones 9–11 with space for the 180–360 inch (450–900 cm) frond spread. Full sun. The blue-silver frond color and the diamond-patterned trunk are the display features. Sharp spines — position away from foot traffic. Non-toxic. Deer-resistant.How to Identify
Appearance
Size & Dimensions
Height25' - 50'
Width/Spread15' - 30'
Reaches mature size in approximately 15 years
Bloom Information
Yellow flowers in large branched inflorescences in spring (March–May). Dioecious — only female trees produce fruit. Small orange to reddish-brown dates in hanging clusters ripen in fall.
Detailed Descriptions
Flower Description
Yellow, in large branched inflorescencesFoliage Description
Blue-gray to silver-green, pinnate fronds with spiny petiole basesGrowing Conditions
Sun Requirements
Requires 8-10 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight