Hibiscus rosa-sinensis 'Gertrude
When it comes to hybrids, I generally do not gravitate toward the
yellows. However, this one caught my eye. It had 'early hybrid'
written all over it. Below is the only information I was able to
find on Hibiscus rosa-sinensis'Gertrude Ivers'.
Historical Reference: Hibiscus Gertrude Ivers. Sport grown from
seed capsule introduced by G.P. Wilder, from A.S. Archer. Slow
growth, upright, freely branching, dark gray bark, green on twigs.
Leaves ovate, thick, serrate, light green, raised veins, 1 1/2 - 2
1/4 in wide, 2 1/4 - 3 1/2 in. long, petiole 1/2 in.
Flower 5 in. wide, sulpher yellow-orange, scarlet tinge in veins
and near tips of petals, throat rich crimson, column pale yellow, 3
in. long, peduncle 2 3/4 in., bracts 7 or 8, green, upright. Seldom
self seeds; crosses freely.
Ornamental Hibiscus in Hawaii
Hawaii Agricultural Experiment Station
Bulletin No. 29, December 1913