Here's my 30-in-1 citrus tree that just had 12 more cultivars added this season. If all cultivars will take, this would be a 42-n-1 citrus tree! This has year round fruits. It has blooms right now and also green fruits. You can't see the lemons, they're in the back. The mandarins on the top, sweet oranges in the middle, lemons in the back and grapefruits and orangelos in the bottom canopy.
Some budwoods have died due to all the record breaking rains we're having, but I did redundant grafts per variety, and had only one that seemed to rot away from all of this moisture (I did not cover the budwood completely).