The day, which is held in July every year, is a chance for school students to learn about planting and do something positive for the environment.
The students were taught about gardening as they planted native trees and plants in the school's new garden bed.
Planet Ark National Tree Day manager Debbie Agnew said it was the largest nature care event in Australian schools and was not just about trees.
"Schools are branching out in many ways to get their students into nature," she said.
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READ NOW"They can beautify and green their school grounds, start a vertical garden or vegie patch, grow seeds in their class and go on a bush walk, as well our lesson plans being aligned with the existing curriculum.
"There's many ways to take part and you can grow so much."