On September 18, 2024, the album was announced by Heynderickx, and the release of the second single "Foxglove" followed, together with a music video.

[2] Pitchfork referred to Seed of a Seed as an exploration of Heynderickx's "internal anxieties and the wisdom that can be gleaned outside the confines of our minds," giving it a rating of 7.6 from 10.

[5] Hazel Blacher of DIY Magazine reviewed the album, stating "As perhaps one of the most refreshing voices in indie folk, Seed Of A Seed sees Haley Heynderickx harnessing a uniquely spellbinding and sensitive power," giving it four out of five stars.

[6] Paste Magazine's Ellen Johnson rated Seed of a Seed 8.4 out of 10, calling it "marvelous" and stating it "embraces both the ugliness and beauty of her own storyline" and is about "being in touch with ourselves, and nature, is key to a healthier inner life.

"[7] AllMusic gave it four stars out of five, describing it as having similar characteristics with Heynderickx's debut album, I Need to Start a Garden, such as "alternate tunings and complex chords, a brittle, lilting singing style, and slightly off-kilter arrangements that are mostly acoustic but include some electric guitar and electric bass as well as the occasional trombone" with "a tenser, more cautionary tone to the album, despite some affectionate passages.