Cycas pectinata is a tall, evergreen cycad tree from the Himalayan foothills and southern China, growing up to about 12 m with a crown of long, dark green fronds. It is usually grown as a garden or landscape specimen in warm climates, and in cooler regions as a large tub plant.
Family
Cycadaceae (Cycad family)
Grows as
Tree
Light
Full sun, Part shade
Water
Water deeply when the top few centimetres of soil are dry, and let the soil drain freely between waterings.
Soil
Well-drained, sandy or loamy mix with added grit or perlite.
Temperature
18–32 °C; protect below 5 °C
How easy
Moderate
Safety
Toxic: All parts, especially seeds, contain toxic compounds such as cycasin that can cause vomiting, liver damage and neurological effects if eaten.. Toxic to cats and dogs (ASPCA).
Native range
Himalaya to China (SW. Yunnan) and Indo-China
Climate
subtropical
About
Cycas pectinata is a species of Cycas, the fourth to be named; it was described in 1826 by Scottish surgeon and botanist Francis Buchanan-Hamilton from Kamrup, Assam in northeast India. The species is one of the most widespread cycads. It is found in the northeastern part of India (Assam, Manipur, Meghalaya, Sikkim, Darjeeling), Nepal, Bhutan, Myanmar, southern China (Yunnan), Bangladesh, Malaysia, Cambodia, northern Thailand, Laos, and Vietnam. Cycas pectinata usually grows at elevations from 300 m to 1200 m and in difficult terrains. In China, it grows in dry, open thickets in limestone mountains and red soil in sparse monsoon forests. Cycas pectinata grows up to 40 feet (12 m) tall and has very large, ovoid male cones. The tallest Cycas pectinata is a female plant in North Kamrup, Assam which measures 52.8 feet (16.1 m). The tree is the world's tallest Cycas plant.
Text excerpted from the Wikipedia article Cycas pectinata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.