planterà
Planterà is not a standard Italian word. It is most often encountered as a misspelling or typographical variant of pianterà, the third-person singular future indicative of piantare (to plant).
The correct Italian form for the sense "he/she will plant" is pianterà. Italian regular -are verbs form
In other Romance languages with similar roots, cognates exist: French plantera, Spanish plantará, Portuguese plantará. These
As a proper name, Planterà could be encountered in fictional contexts or branding, but it is not