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Sein Vater ist die         Sonne, und seine         Mutter ist der Mond. Der Wind trug es in seinem Bauche, und seine Amme ist die Erde, 2025
Series of four St. John’s Wort preparations, vase in glass by Serax found at Rotor Deconstruction

her phone reading: the moon in June falls mainly on the spoon,  2025
WALA Solum Öl, Hermès Terre d’Hermès

not for ourselves alone, 2025
Audio, recordings of St. John's songs sung by children from the Steiner School in Brussels (Sint-Janskruidlaan) are played through speakers


Myrthe van der Mark’s installation unfolds within the historic Victoria Greenhouse, or Balatkas – one of the most emblematic structures of the Meise Botanic Garden. Designed in 1854 by Alphonse Balat, court architect to Leopold II, the ornate octagonal glasshouse was originally built for the Brussels zoo. In 1878, it was relocated to the Jardin Botanique to cultivate Victoria amazonica, the giant tropical water lily sustained by a heated basin. Since 1941, the greenhouse has stood in Meise as a testament to nineteenth-century botanical architecture.

Myrthe van der Mark’s installation draws on hermetic traditions and the anthroposophic teachings of Rudolf Steiner – principles she was raised with as a child. Publiek Park opens during a symbolic moment: the birthday of her late father and the week of Saint John’s Eve, a solstice celebration associated with purification and transition. Marking both the birth and name day of John the Baptist, it is a time when light and warmth reaches its peak on one of the longest days of the year.

An octagonal plexiglass platform, mirroring the dimensions of the crown window above, presents four preparations of Saint John’s Wort, a healing plant that thrives in the medicinal garden beside the Balatkas. Salve, soap, infusion, and watercolour – distilled by the artist from her own harvest – are contained in anthropomorphic vases, prepared with beeswax and honey from the Plantentuin’s beekeeper. These four vessels serve as evocations of the installation’s title. Its father is the Sun, its mother the Moon. The Wind carried it in its belly, its nurse is the Earth is a central passage from the Tabula Smaragdina, a foundational alchemical text attributed to Hermes Trismegistus which deeply influenced Steiner’s cosmology. In the medieval garden of the Plantentuin, Van der Mark planted eight Saint John’s Wort plants in an octagonal formation, encircling four myrtle shrubs at the center as an echo to this installation.

Saint John’s Eve, central in Steiner education, is a festive gathering of music, bonfires, and flower wreaths, marking the school year’s end. For this work, the artist collaborated with the children from the Steiner school in Brussels, aptly located on Saint John’s Wort Street, to sing solstice songs in multiple languages. Their recording, Non nobis solum (“not for ourselves alone”), performed at the exhibition opening, now resonates continuously within the greenhouse as the days begin to shorten.

The windows are embalmed with Solum oil,used by the artist to anoint her father’s feet in his final days, and scented with Terre d’Hermès (Earth of Hermes). The Latin word "solum" means soil, but also translates to alone and sole. In botanical terms, it refers to the vital layer of earth that supports life. Solum oil is produced by the German company WALA. Deeply influenced by the teachings of Rudolf Steiner, its name stands for Wärme (Warmth), Asche (Ash), Licht (Light), and again Asche-a cyclical sequence evoking transformation. The perfume’s name alludes to Hermes, the Greek god of commerce and communication, who is also a figure of transition, as he moves freely between worlds. More than a messenger, he guides souls to the underworld. This crossing of thresholds – between child and parent, day and night, life and death, matter and soul – echoes through the work’s gestures of sound, scent, and presence.