Imro praised the song and Tree for "pairing relatable, straight-faced humor with his unmistakable off-the-wall antics – from dancing atop an airplane wing in full pilot uniform to meticulously vacuuming the cabin."[3] In That Eric Alper, they analyze that "Flowers" is "a sharp left turn and a bold step forward from his upcoming fourth studio album" and "is a fully realized creative arc unfolding in real time."[4] Emily McCormack from Melodic Magazine wrote "While the pissed-off lyrics may call for a much angrier tone, the Santa Cruz artist continues to combine this anger with cheery alternative-pop beats in his usual genre-bending fashion. He retrospectively explores a toxic relationship and hoping the worst for the heartbreaker."[5] Stereo Saints stated that the track "sounds deceptively playful on the surface but cuts deep lyrically" and "rides a buoyant alt-pop groove, bright and immediate. But then the lyrics hit."[6]