Perennials › Hibiscus coccineus (Scarlet Rosemallow) Image 1 of 1 Hibiscus coccineus (Scarlet Rosemallow) from $4.99 sun, 6x3', red summer blooms, native, Z6-9 Pot: Select Pot 4" qt or 5" gal 8" 10" Add To Cart Added! sun, 6x3', red summer blooms, native, Z6-9 Also known as Texas Star Hibiscus.