The dryness has suppressed weed germination, so the garden is nearly weed-free. Aggressive irrigation by flooding the paths between rows has promoted growth of the deeply rooted vegetables without germinating the weed seeds at the surface.
I have harvested about half of the potatoes. They are small because of the drought, but really healthy. The space vacated by harvested potatoes has been planted with root vegetables (carrot, parsnip, salsify, beets).
I have had a bumper crop of shelling peas, starting 2 weeks ago and continuing today.