This year, Coles is providing the prize for Planet Ark's National Tree Day giveaway to celebrate the efforts of volunteers.
Volunteers who take part in National Tree Day activities will have the chance to enter by sharing a photo from their event on Instagram using the hashtag #NationalTreeDayGiveaway. Ten winners will each receive a $250 Coles gift card.
If you'd like to get involved and enter the giveaway with your planting photos, register to volunteer at a site near you .
