This plant looks nice but I don't know the name for this plant. It doesn't have flowers and it is about one feet wide and long. It grows on tilled soil. Plant got a bud: My First plant is so tall: My second plant bud: My second plant bud is so big:
It will flower in mid-summer, depending how warm it is in your location, see e.g. gardenersnet.com:
Amaranth will grow tall, 1-2 feet. They will produce of blooms on strong, straight stems. Flowers are long lasting, and will bloom from mid summer until frost.
Although amaranth is annual, some may reseed themselves and produce new plants the following year.