Several years ago I discovered Amaranthus tricolor, an easy to grow annual.
Amaranthus tricolor readily grows from seeds. I start mine usually during the second half of April indoors under grow lights.
Germination only takes a couple days and the seedlings grow rather fast.
Outdoors Amaranthus tricolor enjoys full to partial sun, regular watering and a fertilizer high in Nitrogen.
Amaranthus tricolor 'Perfecta'
Amaranthus tricolor 'Illumination'
