Hibiscus
is perhaps the best known tropical shrub and flower in the world.
The form of the flower is known everywhere and there are hundreds
of hybrids to enjoy in every color imaginable
Hibiscus
is a robust shrub of variable height to 15 feet, although most
are seen much smaller due to pruning. Others like Hibiscus 'LaFrance'
are correctly grown as a small trees
Be sure
your soil is on the acid side. Like Ixora, keep away from concrete.
Full sun is essential for high flower production. Feed well
from spring through October and mulch is appreciated. Bud drop
can be caused by hot weather and also from insects, such as
thrips
Many
fancy hybrid Hibiscus plants grown for shows are small to tiny,
perhaps 2 feet tall, and with minimal foliage. Of course, their
fancy flowers are spectacular. These are not landscape plants
as they require knowledge and attention
Flowers
are produced all year around in South Florida, but the best
production is during the fall and spring when temperatures are
moderate to cool. Hot weather bud drop is universal
Some
call hibiscus "Queen of Shrubs" as
different types can be used in so many ways to provide color,
beauty of bloom and ease of ownership. Hibiscus is likely the
best shrub in the tropics
USA
native Hibiscus grandiflora always has 5 pedals and grows in
a triangle from Georgia to Louisiana to Florida
This
variety is prized for it's super huge blooms, often 10-12 inches
across. Hibiscus grandiflora is a bog plant in both fresh and
brackish water. Due to size, one common name is "Dinner
Plate" hibiscus
For
Hibiscus rosa-sinensis, plant in fertile soil that is moist
but well drained. Water to supplement rain in dry periods. Fertilize
with a complete fertilizer, lightly but often. Plant in full
sun to partial shade for best flowering. Do not use hibiscus
as a hedge as all flowers come from tips which are exterminated
in hedge pruning
Aphids,
scales, mites, nematodes and thrips all enjoy hibiscus as well,
especially aphids. New emerging blooms can be covered in aphids
and bloom drop is the likely result. Chemical sprays are awful
for hibiscus (kills the blooms) so alternate means of insect
control are suggested. Also, a plain water spray wash works
well for most of these pests.
