I farmed 3 different variations of a harvest farm on a 50x map sample for each to see if there was one that was better than the other.
When running these maps, use the first 1-2 of them to look for specific mods. I recommend running these first maps on undesired layouts so they can be eliminated. After you find the mod, you can switch the atlas tree to keep the maps after running it with an astrolabe.
I blocked the two most expensive lifeforce for crop rotation. This is to have as much of the undesired crop to spawn, allowing us to upgrade the desired crop more. Sometimes you will have maps where the desired color does not appear. On the high end, you want as many tier 3 plants as possible.
Cornucopia Astrolabe Mods: Chance to convert Tier 2 to Tier 3, All plants are at least Tier 2, Quantity of Lifeforce, Duplicated Monster, Additional Monster, Chance to contain Tier 3 plants, crops to not wilt.
Default Astrolabte Mods: Same as cornucopia.
Crop Rotation Astrolabe Mods: Chance for crops not to wilt, Quantity of Lifeforce, Additional Monster, Duplicated Monster
(Crop Rotation Overrides "All plants are Tier 2")
Cornucopia/Default Atlas Tree: https://poeplanner.com/a/6Jwy
Crop Rotation Atlas Tree: https://poeplanner.com/a/6Jw9
PoB: https://pobb.in/Ouqyaqun1b48
0:00 Cornucopia
0:45 Cornucopia Highlights
4:39 Cornucopia Results
5:03 Default Harvest
6:00 Default Harvest Highlights
8:51 Default Harvest Results
9:26 Crop Rotation
10:12 Crop Rotation Highlights
13:10 Crop Rotation Results
13:35 Strategy Comparison