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| Category: Cycad |
| Family: Cycadaceae (Cycads) |
| Origin: China (Asia) |
| Evergreen: Yes |
| Flower Color: NA |
| Bloomtime: Not Significant |
| Synonyms: [Cycas siamensis] |
| Height: 4-6 feet |
| Width: 6-8 feet |
| Exposure: Full Sun |
| Irrigation (H2O Info): Medium Water Needs |
| Winter Hardiness: 0-10° F |
| May be Poisonous (More Info): Yes |
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Cycas panzhihuaensis (Panzhihua Sago Palm) A slow growing distinctive plant which when mature has a short stout may trunk 4 to 6 feet tall that is covered with a thick fur reddish brown wooly fur (tomentum) with rings of fairly stiff 3-4 (2.3-4.9) foot long pinnate leaves that emerge green but age to a shiny grayish blue-green. Plant in full sun in a well drained soil and irrigate occasionally. It is a fairy hardy plant for a cycad and evergreen in climates with winter temperatures above 20° F and hardy but deciduous where temperatures drop below this and some who have grown this plant in east coast gardens report it hardy to 3° F and plantable in USDA Zone 7. Best were soil drainage is decent to aviod overly wet feet in our winter rainfall climate. In cold winter areas expect a once annual leaf flush in early to mid-spring. This attractive cycad that looks similar to the common sago palm but has much bluer leaves and is hardier. This species was discovered and named in 1979 and is known from the southern Sichuan and northern Yunnan Provinces of China where it growns in woodland or shrubland thickets on moderately to steeply sloping sites from 3,300 to 6600 feet in elevation, which typically has warm hummid summers and cold frosty winters. On the International Union for Conservation of Nature (IUCN) Red List of Threatened Species this species was originally listed as Near Threatened in is now listed as Vulnerable because though found in six locations, populations there are continuing to decline due to exploitation of the plants and habitat clearance. The specific epithet refers to the city of Panzhihua (alternatively spelled Panzihua) in Sichuan Province of China with the Latin termination 'ensis' meaning "place of origin" in reference to where this plant was first discovered. Another common name for this plant is Dukou Cycad from a location where it grows in the Dukou region of Southern Sichuan. For some reason Cycas panzhihuaensis is listed on the Plant List as a synonym of Cycas siamensis, a deciduous, slow and hard to grow species that was originally collected in Thailand and is also found in Cambodia, Laos, Myanmar, and Vietnam. This synonymy is contrary to how it is listed in Loran Whitelock's Cycad book and on the World List of Cycads.
This information about Cycas panzhihuaensis displayed is based on research conducted in our horticultural library and from reliable online resources. We also will relate observations made about it as it grows in our nursery gardens and other gardens we have visited, as well how the crops have performed in containers in our nursery field. We will also incorporate comments that we receive from others and we welcome hearing from anyone with additional information, particularly if they can share any cultural information that would aid others in growing it.
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