Welcome to LOLTANK Path of Exile guide where we'll delve into the intricacies of New Harvest Keystone crop rotations. We'll break down the essential strategies and skill tree choices to optimize your harvest farming for maximum profit. But first, let's take a look at some results to set the stage for this farming method.

Harvest Farming Results:
In a series of 20 map runs, we achieved an impressive Harvest spawn rate of 85 percent. The total life force harvested was a substantial 16,468, with an average life force yield of 968 per run. Additionally, we obtained a total of one Sacred Blossom, and the average time spent per Harvest was just one and a half minutes, with a total time span of 26 minutes. Most importantly, our average profit per hour ranged from 5 to 6 divines.

Map Tier Matters:
Before we dive into the mechanics of crop rotation, it's crucial to note that map tier plays a significant role in determining the quantity of life force you'll obtain. To achieve the best results, we recommend running at least tier 16 maps.

Understanding Crop Rotation:
Crop rotation in Harvest is a straightforward concept. When you pick a yellow plant or other blue and purple plants, they have a chance to be upgraded by one tier. Conversely, when you pick a purple plant or other yellow and blue plants, they also have a chance to be upgraded. To maximize your profits, you should primarily aim for the final tier of blue plants, as they are currently the most valuable.

Optimizing Your Skill Tree:
In your Atlas skill tree, prioritize Harvest non-blue plant nodes and Primal Growth. You'll only need one or two blue plant upgrades as your final goal. Having more yellow and purple plants in your garden increases the chances of your final blue plant upgrading.

Previously, we mentioned skipping "Heart of the Grove," but we were mistaken. In this farming method, "Heart of the Grove" is a highly valuable notable because it provides a chance to have two plants in one location. This is vital, as you always want to have the same color plants in one location. Achieving two identical plants in one location leads to incredible results.

Harvest Strategy:
Now, let's discuss the strategies for optimizing your Harvest farming:
Skill Tree: Allocate skill points to Harvest nodes and block out irrelevant content if you have sufficient Atlas skill points.
Cluster Jewels: Consider obtaining Harvest-related cluster jewels like "Bountiful Harvest" and "Dumpling Season" to enhance your farming efficiency.
Harvest Locations: When entering the Harvest, ensure there are at least four locations. If there are only three locations, you can attempt to pick the same color plants, but it's more efficient to look for four locations.
Plant Prioritization: Aim for blue plants as your final choice. However, if you encounter two locations with two blue plants each, pick the final plant as a different color to maximize upgrades.
Upgrade Priority: After the second and third picks, assess which tier 3 plants have a higher chance of upgrading to tier 4. Some plants may appear to have only four tier 3 plants but may actually have more, so pay attention to the appearance of the plants.

In conclusion, mastering Harvest Keystone crop rotations requires a combination of strategic skill tree allocation and efficient decision-making during your Harvest encounters. By following these guidelines, you'll be well on your way to maximizing your profits in Path of Exile's Harvest league. For more detailed information, stay tuned for further updates and guides.