- You Will Get 100 Seeds Of Aster Pompon Blue Flower Seeds. - This is for 100 seeds of the Aster Blue. - This Aster grows to about 20" tall and it is a annual it is a heavy bloomer. - This has large pompon looking flowers that are about 3" wide great to use if flower arrangments blooms in early summer and early fall times. - These flowers like full sun and part shade.