Spirit Flower

A Spirit Flower is acquired after you take a Spirit through the Everdoor, with the exception of Mickey, presumably because Bruce has one. The Spirit Flower then appears in the spirit's room on their bed (For Daria this is in her room at Overbrook).

Spirit Flowers are used for certain upgrades for Stella's Boat at Albert's Shipyard.

List of Flowers

This list contains spoilers. View at your own risk!

Spirit	Flower	Description	Details
Alice		A peace lily, Alice's Spirit Flower. It can be used to upgrade your boat.	Peace lilies can bloom at low light and in crowded pots. A subdued flower that contents itself with little.
Astrid		A bright mallow flower, Astrid's Spirit Flower. It can be used to upgrade your boat.	Astrid’s mallow flower is synonymous with how much she became consumed by love.
Atul		An unpretentious white lily, Atul's Spirit Flower. It can be used to upgrade your boat.	As the description notes, Atul's Spirit Flower is a while lily. The white lily Atul wears is a symbol of purity, a quality Stella has always seen in her uncle’s intentions.
Beverly		A delicate red anemone, Beverly's Spirit Flower. It can be used to upgrade your boat.	The most significant anemone flower meaning is anticipation. Anemone flowers also signify fragility and symbolizes death or the act of forsaken love.
Bruce & Mickey		A fennel flower, Mickey's Spirit Flower. It can be used to upgrade your boat.	Mickey wears a fennel flower to represent forgotten strength and Bruce, a heliotrope, symbol of neverending devotion.
Buck	None		Buck does not have a Spirit Flower since Buck never goes through the Everdoor. Despite not leaving a spirit flower, he wears a flower wreath. Adorned with rue flowers, Buck bears the burden of sorrow and regret.
Daria		This is Daria's Spirit Flower, a striking saffron. It can be used to upgrade your boat.	Some of the more common associations of the saffron are feelings of happiness and joy, with a gift of saffron being a way to send positive vibes and energy to another.
Elena		A rough piece of cypress, Elena's Spirit Flower. It can be used to upgrade your boat.	Elena's Spirit Flower appears as a simple piece of cypress. The cypress is a symbol of dread and death in many cultures, and Elena is the only spirit who willingly accepts death as a simple moment, without hesitation.
Giovanni		Giovanni's Spirit Flower, a borage or starflower. It can be used to upgrade your boat.	Giovanni is adorned by a borage, which represents the courage he incarnated during the war in Stella’s eyes.
Gustav		Gustav's Spirit Flower, a red poppy. It can be used to upgrade your boat.	Gustav's Spirit Flower appears as a red poppy. Gustav adorns a red poppy which is a symbol of pleasure, sacrifice and remembrance.
Gwen		A delicate asphodel, Gwen's Spirit Flower. It can be used to upgrade your boat.	Asphodels are associated with the greek afterlife. The flower is said to mean "my regrets follow you into the grave."
Jackie		This is Jackie's Spirit Flower, a red dahlia. It can be used to upgrade your boat.	Red dahlia flowers are a known symbol of both strength and power, being a fitting gift to a sick or recovering friend.
Lily	None		Lily does not have a Spirit Flower because, unlike the others, she is not a departed spirit. Despite not leaving a spirit flower, she wears a tiger lily, which represents wealth, positivity and pride.
Stanley		This is Stanley's Spirit Flower. It can be used to upgrade your boat.	Stanley's Spirit Flower appears as fly agaric mushroom, a mushroom with psychoactive and hallucinogenic properties.
Summer		A simple oxeye daisy, Summer's Spirit Flower. It can be used to upgrade your boat.	The oxeye daisy, her Spirit Flower, is a symbol of patience, a quality most useful to farmers.