Is it too late to plant fennel in the autumn equinox?

Crops smile when the sickle harvests them.

Mature corn stalks are yellow, sorghum glows red, rice is hung with golden beads, and sunflowers are ashamed of the sun. As soon as the autumnal equinox solar terms arrive, the crops in the northeast field will really mature. At this time of the year, the rice is golden, the sorghum is smiling red, the corn stalks are bulging, and the string of pods hanging on the bean seedlings are yellow-brown, which looks picturesque in the field.

At the autumnal equinox, immature crops can't come up. In the northeast, there is a light frost at night on the autumn equinox. If it is a little light frost, the straw of crops will wither. As soon as the straw withers, the nutrients dedicated to the seeds are destroyed, so it is impossible for immature crops to grow again. In other words, the crops that can't come up again at the autumn equinox are poor harvests or no harvests.