Sometimes called Common Poppy or Field Poppy, Papaver rhoeas is an erect, single-stemmed annual, growing up to about 2 feet-tall. Rising from a bed of deeply lobed, fern-like foliage, each stem holds a single flower: 4 silky red petals, usually 2–4 inches across, which generally bloom from late spring to late summer. There's enough seed here to plant an entire meadow full of poppies — almost 90,000 seeds in all! Scattered in an informal planting, this seed will cover about 1,400 square feet.