Ultraman Taro: S1 E1 - Mother Of Ultra Is Like The Sun
Kotaro Higashi is a young man who had just returned to Japan after finishing a long voyage. He plants the bulb of a Tigris Flower, which is said to only bloom once every hundred years, that he had brought home from his voyage at a park. The bulb blooms into a batch of red flowers. However, they turned out to be the vampire plant that grows into Monster Astromons!