Gardening (cryptanalysis)
In cryptanalysis, gardening was a term used at Bletchley Park for schemes to entice the Germans to include known plaintext (ie, cribs) in their encrypted messages.A well-known example involved miness. If the Germans had recently swept a particular area for mines, and Bletchley Park was in need of some cribs, they might (and apparently did on several occasions) direct that the area be mined again. This would, presumably, evoke encrypted messages from the local command mentioning 'minen' ('mines' in German) and/or the location, and perhaps messages also from the headquarters with minesweeping ships to assign to that location, mentioning the same. It worked often enough to try several times.
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