Blooming habit of Washingtonia filifera and W filibusta

[Phoenikakias]

Anybody knows when exactly a true filifera blooms in the mediterranean Europe and whether filibusta blooms in same region more irregularly or at different time?Are there also other differencies regarding i.e. size and color of inflorescence? Also after germination, how many years or decades does it take for a true filifera to bloom for the first time in this region?

Edited June 2, 2015 by Phoenikakias

[Alicehunter2000]

Used to think they bloomed at different times. This year they seem to be blooming at the same time....at least here.

[Phoenikakias]

To which from the three taxa are you referring? Maybe you have observed which taxon blooms at a different time than in the previous years?

[John Case]

^{In my area, these 2 species are weeds, they blossom at the same time giving lots of natural crosses, all of which seem to be fertile, the seeds fall to the ground and sprout quickly. People who have them would rather not have them in many case dues to the number of deep rooted seedlings they must remove. Often, if they are mowed down, many of the sprouts continue to grow.}

^{I hope this helps. BTW, I am in Northern California.}

[Alicehunter2000]

Always thought that it is weird that Butia odorata can volunteer from seeds here but Washy's do not....wonder why that is. L. decora appears to naturalize here, but it is too early to tell since almost no one has them.

W. robusta, W. filifera and W. "filibusta" all appear to be blooming at the same time here this year.