Astromons is a Kaiju that appeared in the TV series Ultraman Taro. He and his original form, the Tigris Flower, both appeared in episode 1. He is also the first legitimate Kaiju of Taro's time on Earth.

Tigris Flower was a plant from space whose seed arrived on a desert of Earth and since became a legendary flower as it only bloomed every 100 years. Right at the end of the second age of aliens, the seed was planted by a local boxer named Kotaro Higashi. One night, the final Terrible-Monster of Yapool, Oil Drinker appeared and ZAT came to the area to battle with the Terrible-Monster.

Tigris Flower bloomed with a wide variety of attacks and soon formed into his adult form Astromons and battled with Oil Drinker. It didn't take long for the massive plant to eat the Terrible-Monster when Oil Drinker's head got stuck in his massive flower chest. After the battle, Astromons flew away into the night with Ultraman Taro's human host Kotaro Higashi clinging on his fur desperately to try to annoy the beast. Kotaro lost his balance and fell off and then rescued by a group of people.