Throughout the show, Earth ponies tend to crops and care for plants and animals, particularly in Winter Wrap Up, Fall Weather Friends, and Hearth's Warming Eve.
Lauren Faust, the show's creator, explained online that Earth ponies "have a magically ingrained connection to the earth that makes them better at working with plants and animals." Fluttershy, a Pegasus whose special talent is working with animals, and Gardenia Glow, a unicorn some of whose collector cards state "grows a garden" and "makes gardens grow", are something of exceptions to the rule in this regard, though Gardenia Glow's first collector card mentions one of the things her garden-growing takes as "some help from her friends" without specifying the nature(s) of the friends or of their help.
In Make New Friends But Keep Discord, Tree Hugger says, "The aura coming off the waterfall was so alive!
So, like, magic manifestation." In Campfire Tales, Rockhoof magically grows to a much greater size, with his strength increasing in proportion to his new stature.
Pegasus ponies frequently alter the weather, notably in the first episode and Winter Wrap Up where they clear the clouds from the sky, and in Look Before You Sleep where they build up clouds to arrange a storm.
Snowflakes and rainbows are made in a Pegasus-run weather factory in Cloudsdale that the main characters visit in the episode Sonic Rainboom.
In Hurricane Fluttershy, Pegasus ponies work together to create a hurricane that lifts water from a reservoir to Cloudsdale.
In Wonderbolts Academy, Lightning Dust and Rainbow Dash produce a twister but lose control of it.
In Tanks for the Memories, Pegasi move clouds in preparation for winter.
In Sonic Rainboom, Twilight Sparkle explains that non-Pegasus ponies require a magic spell to be able to walk on clouds, while Pegasus ponies naturally possess this ability.
Gilda, a griffon, has no trouble walking on clouds in Griffon the Brush Off. , birds and other winged creatures walk on clouds, too. There are some instances of non-Pegasus background ponies standing on clouds during Sonic Rainboom, The Cutie Mark Chronicles, and Sweet and Elite, one of which is explained as an animation error by one of the show's layout artists.
Some Pegasus ponies create weather-related wakes when they perform aerial acrobatics.