Another seed question

[quaman58]

Hey, all, I wanted to see if anyone here has had a similar issue. This palm has flowered regularly for the last few years. Once the flowers are well pollinated, the seed grows pretty quickly and usually within a couple weeks changes from green to purple, indicating the seed is ready to drop. For some reason this year, the seed got to full-size, and then simply stayed green, ( for at least four months now), and there still firmly attached to the bract. I can’t really figure out why that might be. Would like anybody else’s experience and/or observations. Thanks in advance!

[Fusca]

Bret, I had the same issue with my Livistona chinensis.  When I purchased the property in 2019 through this past year the fruits would form in May and would stay dark green through the late fall when they'd finally drop.  I managed to germinate one of the seeds from a green fruit in 2020 but I finally saw the fruits turn the typical blue/black color last November.  My assumption was that it was due to drought that we've had since we got summer rains last year but none in the previous five.

[JD in the OC]

Could be drought, unusual amount of cold, or a lack of micronutrients.