Anonymous wrote:If you want to go deep, you could take the course to become a DC Master Gardener. Spring session is Feb. 5 to March 8.
https://www.udc.edu/causes/land-grant/center-for-urban-agriculture-gardening-education/master-gardener-program/
Or DPR has seminars: https://dpr.dc.gov/page/urban-garden-workshop-series
And DUG Network keeps a list of classes in the area: http://dugnetwork.org/individual-workshops-garden/