Hayao Miyazaki's Princess Mononoke had this trope with the Forest Spirit, who gave and took life. Where-ever he stepped, plant life shot out of the ground, only to regress and presumably die when his foot left the ground.
In Pokémon 3: Spell of the Unown, the illusory Entei makes crystals grow where he steps down on the ground. The plot of the movie involves the Pokémon Unown causing similar crystals to grow, and since they created Entei, it serves to connect the two together. It becomes obvious that the Unown can only affect reality within an area defined by the crystal growth. Hence Entei isn't making crystals grow wherever he steps, the Unown are making crystals grow so Entei can step on them.
Given a dark twist King Of Thorn: the thorny vines grow after Kasumi wherever she goes, despite her not wanting them to.
Uro-sama from Kekkaishi grows moss wherever he walks. Also, donut trees wherever he sits.
Naruto displays this to a degree once he takes control of the Kyuubi's chakra. Even the artificial wood of Yamato's mokuton sprouts vibrant leaves in his presence. Subsequently weaponized when it's discovered that the life-giving power of the chakra can cause Zetsu clones to revert into trees.
An unusual example occurs in the "Stink Bomb" segment of Memories. The main character emits a chemical that causes flowers to bloom all around him... while also killing all animal life. He is a neutral character who is utterly unaware that he is even the cause of this.
One of the features of the World of Warcraft card game — Item cards. They can provide you rare items in-game. Two of them has said effect: Trinket "Path of Illidan" which leaves green fire footprints as you walk and "Path of Zenarius (Cenarius?)" that make flowers (and grass) appear as you walk.
Comics — Books
Shalla Bal in one Silver Surfer story. She is able to return life to their homeworld after the Surfer infuses her with some of his cosmic power.
In Hellboy: "The Nature of the Beast", there's a legend that the monk who first killed the St. Leonard Worm was injured fighting the dragon, and lilies grew from the places in the valley where his blood fell. Then when Hellboy fights the Worm, lilies grow from where his blood falls. This is significant because Hellboy is a half demon and the prophesied Antichrist equivalent of the setting, however he is so staunchly good he is (up to now) an Anti Antichrist.
In Meridian, Sephie falls from a flying ship at high altitude and lands in a toxic wasteland, making a human-shaped crater around which plants start to grow.
In an early issue of The Books of Magic, the protagonist has just defeated the Manticore, the secret plague that's been turning the Fairy world into a desert, but has been badly wounded in the process. His blood is chock-full of magic, though, so even as he's bleeding out stumbling around, his blood droplets restore plant life to the world.
Films — Animation
Shishigami, in Princess Mononoke. It should be noted that the Shishigami doesn't give just life but both life and death — and the plants that spring up from its footsteps immediately die and rot away. It seems to make plants go through their life cycle faster. But when the Shishigami is decapitated, his headless and still-moving body turns into a Walking Wasteland.
Later, they restore color to Pepperland and repair damaged statues and plants with a chorus of "Sgt. Pepper's Lonely Hearts Club Band". Jeremy Hillary Boob gets into the act by covering the Boss Meanie with flowers, bringing about his Heel Face Turn.
In the Barbie adaption of The Nutcracker, Clara walks through a snowy landscape and wherever her feet step, the snow and ice melts and little purple flowers bloom in the melted footprints. She doesn't notice.
In Pan's Labyrinth, after Ofelia dies after refusing to harm her half-brother, the dead tree whose parasitic frog she removed has a single, beautiful flower bloom on it where she briefly touched it. This is appropriate considering her actions allowed her reentry into the fairy kingdom, "redeeming" her soul from base humanity and making her something close to a saint. Director commentary runs to the effect of "Even if all the effect she had on the world was the blooming of a single flower on a dead tree, then her life had meaning."
Excalibur, after Arthur's wound is healed by the Holy Grail.
Reconstructed in Avatar, where pressure causes Pandora's bioluminescent plant life to glow underfoot, but not change in any other way. It helps that it's there more for Scenery Porn than anything else.
Anneke in the Russo-Finnish production The Day the Earth Froze briefly caused flowers to bloom in her wake when Lemmenkainen and Ilmarinen rescued her from the witch Louhi. Louhi and her imps then went on a frenzy of stomping the flowers, because (being evil and all) she hated anything beautiful.
When this movie was given the Mystery Science Theater 3000 treatment, Joel looked at the witch during this scene and pondered, "Geez, I wonder what her Myers-Briggs test was like."
Terry Pratchett's Wintersmith is the Trope Namer; it was called this (and the Latinized "Ped Fecundis") when Tiffany Aching developed it. Of course, this being Discworld, it is played for laughs.
In Pyramids, when Pteppic's father dies, making him a divine emperor, his friends notice grass growing from the city pavement wherever he steps, a wooden table starts budding, and all the grain in a bakery attempts to burst into life.
In The Lord of the Rings, King Theoden's horse does this to its grave. The horse was buried where he was killed, and grass grew lushly over the grave. (In contrast to the Nazgul Giant Flyer's death-spot, which remained forever barren.) Also happens with other burial sites, with those of evil beings staying barren.
That also turns up in, of all places, Garrison Keillor's Lake Wobegon Days, in the story of Leon and Roman Krebsbach.
Said Father Winter: "If Beira scolds you, give her these flowers, and if she asks where you found them, tell her that they came from the green rustling fir-woods. Tell her also that the cress is springing up on the banks of streams, and that the new grass has begun to shoot up in the fields."
"It's all very well to be fond of England; but a man who wants to help England mustn't let the grass grow under his feet." "And that's just what I want to do," answered Hood. "That's exactly what even your poor tired people in big towns really want to do. When a wretched clerk walks down Threadneedle Street, wouldn't he really be delighted if he could look down and see the grass growing under his feet; a magic green carpet in the middle of the pavement? It would be like a fairy-tale."
Played for laughs in the story All You've Ever Wanted by Joan Aiken.
In Jim Butcher's Summer Knight, the Summer Lady, the youngest of the three queens of the Summer Court of fairies has this quality. Subverted when it turns out that she's become a Well-Intentioned Extremist and is attempting to destroy the balance between the two fairy courts.
In Proven Guilty, the Summer Lady turns wooden flowers into real ones by passing by. Whereupon the Winter Lady passes by and blights them again.
Flowers are said to have sprung up in the wake of Blessed Elua in Jacqueline Carey's Kushiel's Legacy books.
Hannah, protagonist of Meredith Ann Pierce's Treasure at the Heart of the Tanglewood, grows plants appropriate to the season—which usually seem to end up being useful—in her hair. She also, as it turns out, brings the seasons with her when she travels, including flowers in spring, grains in summer and falling leaves in autumn. Surprisingly enough, she turns out to be theMacGuffin whom both the Big Good and the primary antagonist were after.
When Aslan creates Narnia in C. S. Lewis's The Magician's Nephew, grass spreads out from his feet across the bare earth like a wave.
Easter/Eostre of the Dawn does this in American Gods, on her way to bring Shadow back from the land of the dead.
In Ian McDonald's Desolation Road, there's a green evolved human from the future. Grass grows in the desert in his footsteps.
At the end of Robert Jordan's The Eye of the World, we meet the Green Man. The Green Man keeps a chunk of earth free from the blight with his power to make things grow. While he is dying, he tackles one of the Forsaken and makes a giant tree grow out of the forsaken's chest in a matter of minutes. It is also mentioned in backstory that the Green Man's people, the Nym, caused plants to grow where they walked.
This ability is also available to anyone who can channel (whether good or evil) and knows the necessary Geometric Magic.
At the beginning of Towers of Midnight, Rand descends from Dragonmount after resolving his internal conflict and makes an entire orchard of apples, which had been shriveled by the Dark One's touch, bloom instantly. Later, he makes bitter tea turn fresh just by entering the same room. It gets to the point in the book where virtually everyone can tell when Rand is near, simply because the sun starts shining, and everything starts blooming like there's no tomorrow (though this is purposely excluded in a capital city ruled by one of his lovers).
All of this is because of the prophecy stating that the Land is one with the Dragon. The spoilage of previous books is because of him moving towards the darkness.
The unicorns do this in Pamela Dean's Secret Country books, although they are creatures of capricious morality. One of the children call the trail of blossoms "unicorn footprints" and her sarcastic brother immediately redubs them "fewmets".
Clive Barker's Weaveworld has two examples of this. The first plays the trope straight, with a temple so chock-full of magic that any disturbances (such as walking through it) sprouts a lush undergrowth. The second is an inversion, with a Garden of Eden-like setting covered in flora, which withers away and turns to sand when someone walks through it.
Briar Moss uses this in Tamora Pierce's Street Magic when he has a very rational and very controlledRoaring Rampage of Revenge. Briar has Green Thumb in asskicking, so when he has enough, he uncorks his power and seeds and plant-based material come to live and sprout in his wake. In broad daylight. Most mages make an effort to fit into normal society, so seeing one obviously not making the effort was a great way to encourage people to get out of his way.
In L. Jagi Lamplighter's Prospero Regained, the Water of Life has this effect on its environs. Even in Hell.
There is a Yiddish folktale about two girls, a kind one and a mean one. The kind one received a blessing that caused roses to spring up where she walked, and the mean girl got a curse that made nettles spring up in her footsteps.
The Christian hymn "Morning Has Broken" (which has a popular version by Cat Stevens) says plants sprang into existence when God walked in the Garden of Eden.
The Christmas carol "Good King Wenceslas" has a variation where the ground gets so warm that grass grows in the middle of winter.
It's also a pretty common motif in psalms. There is one Swedish example of God's footsteps not only bringing flowers but also overflowing with fat. Food wasn't as plentiful back then.
"Four white trefoils sprung up wherever she trod."
Common attribute of Demeter/Ceres, the Grain Mother, and to her daughter, Persephone, bringer of springtime (when Persephone goes into the Underworld, it's another story...).
Also by Medusa and Cerberus, neither of whom were noted for their kindness. When Perseus was bringing Medusa's head back to Greece, her blood continually soaked through the bag he was carrying it in and caused oases to form wherever they landed. And when Heracles brought Cerberus out of Tartarus as part of his last Labor, Cerberus began howling in rage and his drool caused the plant commonly known as Wolfsbane to blossom wherever it hit the soil.
Also, Suvetar, the Finnish goddess of spring.
The newborn Buddha is sometimes said to have left lotuses in his footsteps when he walked after birth.
The Flowering kith of Fairest cause flowers to spring wherever they step... though it takes months for them to do so in the real world, while in Arcadia and The Hedge it's instantaneous.
Same thing with the Spring Court and their Mantle. At low levels, those close to them feel a gentle, fragrant breeze, but at high levels, plants tend to grow out of the sidewalk if they stick around long enough.
Aekold Hellbrass from Warhammer caused plants to grow wherever he went. Subverted in that he was a champion of chaos, serving Tzeentch, the god of mutation, and nothing like a Friend to All Living Things. His presence was actually screwing up the laws of nature, the excessive life energy radiating from his body as the result of an unusual mutation.
The Quintessential Temptress has this as an option for the Avatar of Love prestige class, once they get the Lover's Gift class feature. It's listed as the Spring Flowers Gift, and is the only one of the Lover's Gifts that doesn't actually do anything inherently useful.
There's also the Moon And Earth Blessing from the Ink Monkeys, a Lunar Charm that allow them to do the same, on a smaller scale. On the other hand, they can do it as a dramatic action, it doesn't require anywhere near as much essence much less a massive blood sacrifice, and they can do it any day of the year rather than just on the first day of the first month.
In Return of the Scarlet Empress, Gaia's return to Creation includes this trope.
The most powerful elven unit, the Nature Elemental, has a "Path of Life" special ability that transforms the grounds it walks upon into the forest/grass terrain. It also has the Frost Queen (Path of Frost) and the Undead Reaper (Path of Decay).
While no unit in the sequel gain directly the ability, the druids can have it with a gold medal, and it's still available as an item property. Wizards with at least one Light Sphere can have a similar magic effect active in their domain that slowly restores terrain.
Death wizards invert this: they have abilities that turn their domains into blasted wastelands. Of course, all of the elemental wizards can turn their domains into an embodiment of their element: for example, air wizards can turn verdant grasslands into frost bitten tundras, and freeze over rivers and even the ocean.
In Black & White, made by the same people who later made Fable, a very Good Creature has the same effect. Conversely, a very Evil Creature leaves smoldering footprints.
When you're maxed out good in Fable, a halo appears over your head and flowers and butterflies also randomly show up when you stand still. As soon as you move, the effect disappears.
Amaterasu. The faster she runs, the more lush the foliage, although it disappears just as quickly as it sprouts up. In water, Amaterasu leaves a trail of lily pads behind her; in midair, a flurry of autumn leaves. This passive ability is amplified after gaining the Growth Brush technique. The flowers in her wake are already bloomed, and at full speed, the flowers turn gold.
The sequel, Okamiden, stars Chibiterasu, who has the same power.
Herbalists have something similar to this. They get a healing move that, when used, causes flowers and plants to spring up around them.
The Night Elf Ancients (living trees that are used as production buildings in Warcraft III) apparently have healing roots, as they cleanse the undead Blight around them when they are planted in it.
And the red dragons, who are guardians of the Aspect of Life, have fertile breath — flowers spring up from where they breathe flame, most notably and poignantly at Angrathar. Some seem to have this trope exactly, such as Surristrasz and his drakes at Amber Ledge, who are surrounded by a patch of grass and flowers upon otherwise barren rock.
Also of note is Illidan's inversion in Warcraft 3: When he moves, his footprints leave fire.
Using a Grass Assist in Pokemon Ranger causes grass and flowers to sprout from your Capture Line.
In a similar vein to this trope, Atlantean civilizations worshiping Gaia in Age Of Mythology (the "Titans" expansion) will have lush greenery grow outward from their buildings, which will prevent enemy civilizations from building too close by.
According to her official profile, Lily White of Touhou can make flowers bloom with her mere presence, being the embodiment of spring and all. However, the actual Youkai of flowers, Yuka Kazami, is less Friend to All Living Things and more Ax Crazy.
The Mishaguji (snake gods under Suwako's control) are said to make grain sprout in their wake. Of course, they're curse gods, so they're more famous for taking it in the other direction and making the land barren. Akyuu describes it as blessings and curses being two sides of the same coin.
Gaihla from Battle Realms has these, and you can exploit the game's unique take with Idle Animation and put her near your rice fields to help them grow faster. It's especially helpful in snowy stages.
One of the secret stars in the Supermassive Galaxy in Super Mario Galaxy 2 has Mario doing this. You have to cover the entire planet with flowers to get a star.
In a sense, Elizabeth Greene of Prototype is this way - she even has the added bonus of being a beautiful young woman with unearthly powers and bare feet, nicknamed MOTHER. It just happens that she doesn't spread nice benevolent things like flowers or plants. Instead, wherever she goes, the infection follows her in a trail of mutagenic, fleshy, diseased tendrils and pustules - even on steel, concrete or glass.
Alex Mercer himself gets in on the act: his health regeneration powers are so potent that his stepping into the residue of the Supreme Hunter he just killed allows it to come back to life.
Another evil example in Thief. Viktoria leaves mosses at her touch until she shows her true form as a dryad, when creeping vines sprout from around her feet and grow in her wake.
Among the last special effects created for City of Heroes characters was this, released at the same time as the Nature Affinity powerset (a flower and tree-themed heal/buff set which required some of the same coding and art).
The Hob from Dresden Codak. Although apparently it's cybernetically-enhanced flowers.
MSF High has any Legion, which is actually their main ability. They are natural terraformers.
After he becomes the Avatar of Life Magic, Lwan Eddington of Tech Infantry tends to have plants and animals spontaneously spring up around him wherever he goes. He even manages to create an entire fertile region on an asteroid-blasted Earth.
Gaia in Captain Planet left trails of flowers in her footsteps whenever she appeared in the human world.
Aphrodite from the cartoon series of Hercules leaves small flowers wherever she walks. Mind you, they quickly disappear again.
Van Kleiss in Generator Rex can do this, and he's the Big Bad! However, it only works in the area around his castle, which is infused with nanites that he controls. He may arguably have been invoking the trope at the time to get Rex to let his guard down.
The second season opening of Jimmy Two-Shoes depicts Jimmy as being able to turn anything he touches into a happy, beautiful thing. He never has this power in the show, though.
This happens every Friday the 13th for Misery in Ruby Gloom.