Herbicidal Soil is an Item that can be found within common locations, including choice enemy Camps, given by Spouses, and rarely as a reward from Seasonal Festivals. Upon being picked up, Weeds will no longer spawn on any broken up or tilled soil. This can be especially helpful on farming areas of an overall larger size. The effect does not apply to hard crust; any Weeds will continue to grow there as normal. Note that this Item does not cancel out the Soil pH Meter; the latter takes dominance over the former.
Compared to other means of removing Weeds, Herbicidal Soil serves as one of the most direct and quickest means to do so, as it requires no action on the player's or other means' part to remove the Weeds. Because of this, other means of cutting Weeds on the player's soil will become strictly unnecessary, such as Weedkiller and Weed Wacker. Despite this, Soil pH Meter will still be of value, as when used in conjunction with this Item it will be guaranteed to spawn Flowers on Soil. However, the downside to this Item does not make it superior in absolutely every regard to other methods of cutting Weeds, as they will still be able to spawn on hard crust. This can make this Item useless when dealing with Weeds towards the edges of the Farm. Due to this, the player will likely still want to retain other means of cutting Weeds.
The following is a list of possible Items that can affect Herbicidal Soil: