Best use over a septic leach field? - Lavender Field?

Unfortunately,  leach fields usually end up in prime are around your house - Permaculture Zone 2, and my place is no exception.

I found a few resources, with most recommending grass or decorative plants.  I was surprised 1 of them was OK with small fruit trees, but I would still like to stay away from that:
https://s3.wp.wsu.edu/uploads/sites/2080/2014/02/Landscaping-Septic-Drain-Fields11.pdf
https://www.unce.unr.edu/publications/files/ho/2007/fs0732.pdf
https://hgic.clemson.edu/factsheet/landscaping-over-septic-drain-fields/
https://pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/426/426-617/426-617_pdf.pdf

I think my options are scythed hayfield, grazing area for animals, wildflower area for bees (honey harvesting), but I really like the idea of a lavender field (maybe I could sell at a farmer's market).  It's near the house so there is an aesthetic issue to consider.  It would look really nice if I can make it look like the pictures on the internet - but I'm not sure how much work this is... I do have the right Mediterranean climate and poor soil for Lavender.

Any suggestions appreciated

These are a couple ideas I could think of for a leech field:
-growing your own clothing fiber (cotton, flax, nettles)
-plants for dyes (madder, woad, weld, indigo, pokeweed, hibiscus, etc)
-plants for candles/tea/aromatherapy (mint, lavender, basil, thyme, oregano, jasmine)

If you decide that you want lavender and want it to look like the picture then be sue to get the right variety.

I wish my lavender looked like those in the picture.  Mine don't have that color nor do they bloom profusely like those.

Here in the Texas Hill Country, we have some lavender farms with pictures like that.