Best use of North-facing spot?

I have a nice protected North-facing area behind my large water tanks.  On the South side I have a Lemon tree https://permies.com/t/53597/Lemon-scheme

What would be the most productive use of this North-facing area?  Semi-shaded by Elm trees.

Here's a photo of this protected spot.   Is there a kind of subtropical or tropical fruit I might try here?

Since the space looks to be at least partial shade I'd look into huckleberry, serviceberry, papaya, guava, banana.
To make it a bit easier for you to choose go to this link to the Florida conference, 10 top tropical/subtropical fruit trees  ten top tropical and subtropical fruit trees

Redhawk

Thank you, Redhawk!   I'm tempted to try all three of those tropicals - Guava, Papaya, and Banana.  The Lemon is doing so well on the other side, I'm very encouraged.

Tyler Ludens wrote:I have a nice protected North-facing area behind my large water tanks.  On the South side I have a Lemon tree https://permies.com/t/53597/Lemon-scheme

What would be the most productive use of this North-facing area?  Semi-shaded by Elm trees.

Ginger and mint should grow well. Paw Paw may be okay. I understand some of the berry family grow well in shade too (I don't grow berries).

Choko (Chayote) may grow well if allowed to trail over the tanks to get some sunlight - keeping the roots in the moist shade.

Perhaps the biggest challenge is the elm, with its root system as a competitor.