BPotD Archives being removed

Please do not link to these pages! The new site is up at http://botanyphoto.botanicalgarden.ubc.ca/. These pages are gradually being removed as we update the content on the new site.

Cycas revoluta

Cycas revoluta

Botany Photo of the Day will have brief written entries on weekends, holidays and my vacations from April through September. – Daniel

Thank you to “ginger749” on the UBC Botanical Garden Forums for submitting this photograph from Gold Coast, Australia (original image in this thread).

In another example of a misleading common name, sago palm is a cycad, not a palm. The Palm and Cycad Societies of Australia has a factsheet on Cycas revoluta.


Stunning image of cycas revoluta!!!


Male or female? In many cycads we would normally have to wait for the cones to start emerging, the male cone being more slender and possessing a greater number of smaller sporophylls than the female. As the cones mature, sexing becomes easier as the pollen sacs become visible under the sporophylls of the male: his opposite will be producing a larger cone but with fewer sporophylls under each of which would be two to eight ovules. In this example of C. revoluta however, I believe the photograph is showing a female about to flower (if it were a male, the shape would already be distinctly cone-like). Once pollinated she will close and start to form seed (usually during the Summer) maturing from a yellow to a bright orange walnut size by the late Winter early Spring when the seeds will then be ready to be dispersed and start their 15 to 20 year journey into adult maturity.

Cycas revoluta - Z9 - RHS Index of Garden Plants, Griffiths
Cycas revoluta - min. 7-10 degrees C./45-50 degrees F., although it will survive short periods to 0 degrees C./32 degrees F. if given some protection - A-Z Encyclopedia of Garden Plants, Brickell, Cole, Zuk
Cycas revoluta - temperate to tropical. Frost and drought tolerant - Palm and Cycad Societies of Australia.

After seeing this Pic. here today.
I went out and took a few more Pictures of my cycad . I have included them on my original Post.

I was cleaning out my flower bed the other day and noticed a strange yellow feathery ball forming on my cycad revoluta. After seeing this picture, I believe I have a female that is about to bloom. Does anyone know how long this process takes? Does it happen every year from now on? My plant is around 10 years old.

Can you tell me a little about this plant? I am lookinmg for a plant similar to this plant. I need the plant not to exceed 5' at maturity. It will be grown in an ocean atmosphere in almost full Sun.

The place it will be grown is in Dana Point, California


I just asked about this plant on the forum.

I saw it in our villa gardens in Golf Del Sur Tenerife.

Many thanks!

We have one of these plants in are garden in Spain, now I know is a girl and over 10 years old has the orange seed pods hundreds of them. such a wonderful Palm.

a place of mind, The University of British Columbia

UBC Botanical Garden and Centre for Plant Research
6804 SW Marine Drive, Vancouver, B.C., V6T 1Z4
Tel: 604.822.3928
Fax: 604.822.2016 Email: garden.info@ubc.ca

Emergency Procedures | Accessibility | Contact UBC | © Copyright The University of British Columbia