Daffodil Field , Dodson, Louisiana
Being Hoosiers and Hollanders we were fortunate to receive some kind and expert help in selecting this sublist of trialed Southern performers. “Southern Zone limits” shown on the bulb’s Specifics table are USDA zones meant to be conservative ( errors towards the cooler side). Asterisks indicate that there is no trial data for the cultivar, just a best guess or overheard rumor . Due to cooler nights and drier climate in the American Southwest you may consider those listed 8b to translate to your zone 10b.
Daffodils have been associated with the Southern homestead garden for so long it is tempting to use the title “Heritage”. Southern daffodils in the spring are one of the great horticultural celebrations of America.
Here's a link to an excellent article by Sara Van Beck about daffodils that are proven Southern performers.