One of the places to appreciate autumn scenery/Tachuan

I've always heard that Tachuan is one of the four major places to appreciate autumn in the country. When I got to Tachuan, I found that the scenery was not as good as recommended, perhaps due to the warm winter this year. The leaves have not completely changed color, the pink and purple plants have turned yellow and have already bent down, missing the golden rice, leaving only the rice stalks, the sunflowers inside are really beautiful, but unfortunately they are scattered and lack momentum. If I come half a month later, I will definitely see the autumn scenery! The tickets are booked online in advance, and they are free!