I do not have to water them often,
Kwizbot no debo regarlas
You no necesito darlas agua
I’d like to know if my reply is good /correct Spanish or is it not the way this would usually be said. (I don't mean whether it would be understood, but is this the only way to say this, or can it be said other ways?)
Hope you had a muy Feliz Navidad and wishing you a wonderful New Year!