This is getting better and better..... Now you just need a gardner...... and you can run things from the sampling
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In case your conservatory becomes a more permanent feature, instead of building raised beds, digging a center trench, lining it with pressure treated wood and a row of concrete tiles at the bottom, et voilà.... ground level is one big raised bed, with useful additional airspace to boot..... I've done this with a couple of greenhouses and can report having some idea of the ground water level after a prolonged period of precipitation is useful if this approach is persued, or a gondola alternatively waders may be a piece of necessary kit required..... The waders seemed the only option at the time as I couldn't locate a certified gondolier to navigate the trench........but maybe that's easier in your neighborhood..... Lol