Lovely blooms there! You are lucky to get blooms at this time
Yes, it is getting much cooler at night. Daytime temps is still okay but light levels are getting shorter.
Thanks for sharing your bloom photos! I am keeping my fingers crossed that my Celadine will still try to bloom.
Soon it will be time to hide some plants indoors once more!
At least in San Diego you may not need to do so. Closely watching overnight temps...