Thirteen citrus varieties mentioned:
1. Arizona Sweet orange
2. Chandler pomelo
3. Oro blanco grapefruit
4. Nova mandarin orange (could be something else let me know!)
5. Valentine pomelo
6. Tahitian pomelo
7. Lisbon lemon
8. Fukushu kumquat
9. Buddha’s hand
10. Nagami kumquat
11. Meiwa kumquat
12. Key lime
13. Meyer lemon

Water: I water the established trees once every 2 weeks (flooding) and the newer trees twice per week.

Fertilization: I use Arizona's Best Citrus Food (13104) during three holidays:
1. Valentine's Day (February)
2. Memorial Day (May)
3. Labor Day (September)

Only the buddha's hand is frost covered below freezing, and all others are not frost covered or sun protected in our Arizona Zone 9b temperature range of 25F120F. These trees are amazingly hardy!