No, I have a lot of plants and flowers on my balcony I work from home. But those are amazing open spaces to visit and smell really nice roses. And also, native species.
Buenos Aires is big and there is a lot to visit. But, if you are in CABA, I do recommend visiting El Rosedal, Los Lagos de Palermo, La Reserva Ecológica, the Eco Parque (ex. zoológico) and El Jardín Botánico. All for free and beautiful.