The Sigil of the Green Grove is an item that has multiple uses. Crafted in an array with a Growth Reagent and a Reinforced Slate, the sigil can use your Soul Network's LP to nourish and grow nearby plants.
Green Grove Sigil Array
The Sigil of the Green Grove's array, plus its primary uses.
If you press [ПКМ] on a block that is IGrowable, it will apply the bonemeal effect while consuming 150 LP.
However, if you hold [Shift] and [ПКМ] while aiming at the air, it will light up to indicate that it is activated, and will consume 150 LP every 5 seconds until deactivated. Every block in a 7x7x5 high volume centered on the player will have a growth tick applied to it. Good for farming those taters!
As you have the Curios API installed, you can equip this Sigil as a charm. If you want to wear more curios at once, consider using a Sigil of Holding, or the Socketed Upgrade for your Living Armour.