Here in zone 6, August is a critical time for cover crops.
Earlier in the year, I dabbled in soil improvement by planting
buckwheat (and some sunflowers) into garden gaps. But August is
the month to plant oats and oilseed radishes for long-term soil
improvement that will keep growing throughout late summer, fall, and
early winter.
As a result, my big goal for August is to make a pass through the entire
garden, not just weeding, but also seeding oats in any beds that have
finished up their spring or summer crops and won't be needed during the
fall and winter. This job also takes those beds off my weeding
plate until spring, which is always a great feeling during the busy
summer months.
While I'm at it, I do a bit of terraforming. This corner of the front garden has been designated excess space, and I plan to turn at least one row of it into high-density apples.
However, the beds in this area were laid out when I was very new to
gardening, so the aisles are too narrow for even annual vegetable
gardening. They definitely won't provide space for our apple trees
to grow.
The solution was to turn two long rows into one, laying down cardboard
over the grassy aisle between them then shoveling the good topsoil from
one bed over to widen the second bed. Finally, I sprinkled oat
seeds on top of both the bare soil in the new aisle and the new half of
the old bed. I'm sure our young apples will enjoy the enriched
soil when they move in this coming winter or spring.