Hibiscus is a flowering tree plant, and produces showy flowers. Hibiscus trees exists in cold hardy and tropical regions. Leaves of tropical regions are glossy and of cold hardy regions, leaves are not much bright.
This popular landscape shrub creates a bold effect with its
medium-textured, glossy dark green leaves and vibrantly-
colored, four to eight-inch-wide, showy flowers, produced
throughout the year. Cu
ltivars are available with single
or double flowers in shades of white, pink, red, yellow, peach,
or orange, or combinations of these. Flowers are produced
continuously in great abundance, making up for the fact that
each flower w
ill last only one or two days. Some selections
have variegated foliage and appear to be covered with snow.
Growing best in full sun to dappled shade, Hibiscus
appreciates abundant watering and fertilization when newly
planted, but requires little care once established. Plants make
attractive specimen plantings when given enough room to allow
development of their natural arching form. Planted on three to
four-foot centers, they can also be trained into hedges, but
shearing often removes the developing flower buds. Instead,
train into a less formal hedge with a hand pruner. Since plants
flower on new growth, pinching the tips of developing branches
in spring and mid-summer will increase flower production.
Severe pruning in the summer removes flower buds and will
reduce flowering for a period of time.
Hibiscus is occasionally trained into a small tree with
multiple trunks and will grow to about 10 feet tall. A number
of nurseries also offer Hibiscus as a standard with a single,
straight trunk three to five feet tall with branches and foliage
forming a neat, rounded canopy. Standards are often
maintained 8 to 10 feet tall with regular clipping.
A few of the multitude of available cu
ltivars include: ‘Hula
Girl’, large single, canary yellow flowers with a red eye;
‘President’, single, six to seven-inch-wide intense red flowers
with a pink throat; ‘Sundown’, double salmon orange flowers;
and ‘Seminole Pink’, dark green foliage and bright pink
Propagation is by cuttings but some selections are grafted
onto nematode-resistant rootstock.
Although usually strong and easy to grow, Hibiscus can be
bothered by aphids which accumulate at the tips of stems,
causing new growth to be misshapen. Aphids may cover the
leaves with sticky honeydew. The insects can be disl
high pressure water sprays from the garden hose or controlled
by pinching off the part of the twig with the insects. Over-
fertilizing increases aphid infestations.