Melissa, below is a list of hybridizers who live in Florida. Stamile used to live there as well but has relocated to California. To access their websites, just go back to the end of my article and click on the names. Each of these websites has contact information. I urge you to contact some or all of these hybridizers and ask them if they think their daylilies would do well in the Virgin Islands. You might also ask which specific cultivars might do better than others.
Abajian
Devito
Harry
Kinnebrew
Lambertson
Petit
Salter
Stamile/Pierce (California)
Trimmer