The leaders of the group are Kasia and Jacek Sienkiewicz. The band has released two studio albums so far. The aforementioned debut CD "Niemożliwe" and "Mogło być nic" (2021) In 2022, a special project "Wolne Serca" was released in cooperation with the Warsaw Uprising Museum. In 2023, the band returned with a new album “Pokaz Slajdów", and the first single "Od nowa" became a hit on Polish radio stations and the most popular song of the official airplay list.
Kwiat Jabłoni has sold out Poland's biggest and most prestigious stages. It has performed at the Open'er Festival, Spring Break Festival and Pol'and'rock Festival, among others – the latter concert was met with great interest, so much so that the band, debuting in 2019, gathered tens of thousands of attendees in front of the Small Stage. As a result, in 2020 Kwiat Jabłoni received the Złoty Bączek award - the audience award for the best band of the 25th Pol'and'Rock Festival. In 2022, the band returned to the World's Most Beautiful Festival to play on the main stage, and in 2023 was again awarded the fans' prize. In the same year, the Kwiat Jabloni played two tours - they embarked on their first career tour of Europe, performing in Berlin, Oslo, Brussels, Dublin and London, among others, and closed out the year with an autumn-winter only tour of Poland's largest halls.