I've had great luck hiding my weed by planting it to blend in or do late starts or topping in a way so the plants stay below the natural plant cover like these cookies.
patches that you can spot from the air seem much less safe to me in the days of cheap drones and google earth.
this is some ECSD next to a stream that blends in well even with a dozen bamboo stakes.
smaller plant in foreground.
this clump of small trees and bushes gave me a great spot to conceal a big plant.
individuals like this blend in well along the edges of fields and they do fine with partial sunlight too IME.
last year I planted this suspected male at the edge of the road on the other side of the ditch maybe 20 -30 feet from the road
and thousands of people drove by and walked past this plant without noticing it and it was waiting for me in October frozen pretty hard but still dank.