That is from way up. See the car, the person walking, the phone poles? The flag could be 2 blocks long.
The car is probably 12’ long so the flower rows are wider than the car is long.
It could be from 500 to 1000 feet up. It’s high enough so you can’t see the rows.
I’ve seen beautiful cut fields in Lancaster PA from @ 14,000 feet. Would a commercial jet at 32-37,000 feet see it? I doubt it.
If it is close to an airport, which is possible being California, with jets from the east then the aircraft could be much lower and it would certainly stand out.
I gotcha, LJ! It just looks so big, I was just wondering how far up one could see it. It’s a great pic!