Flowering Perennial


 
Helenium autumnale
Bitterweed

Medium to tall bushy herbaceous perennial; numerous yellow flowers from July to frost.

Helianthus angustifolius
Swamp sunflower

Tall leafy sunflower; flowers from July to frost.

Hibiscus coccineus
Scarlet rose mallow

Showy large red flower on large perennial plant.  Low salt tolerance.

Hibiscus moscheutos
Marsh hibiscus/Rose mallow

Showy red, white, or pink flowers; can tolerate dry periods.  Low salt tolerance.

Hypericum densiflorum
Bushy St. Johnswort

Small dense shrub or woody perennial with numerous showy yellow flowers.