Ficus and
Philodendron
June 2005
Father's Day is coming up this month (June 19), and
if you're stumped for a gift, why not send Dad a
tropical houseplant to let him know how much you
appreciate him? Your local florist has a selection
of favorite houseplants from which to choose,
including ficus plants and philodendrons - two
sturdy specimens with a proven track record of
flourishing indoors. Each one of these popular
groups of houseplants occurs in several different,
easy-care varieties, so you'll be able to select the
one that best suits your father's personality and
matches the growing conditions he'll be able to
provide.
Ficus benjamina
The
word 'ficus' means 'fig' in Latin, and in addition
to the tree that bears the tasty fruit of Fig
Newton® fame, the ficus group contains some of our
most universally popular houseplants, including the
well-known Ficus benjamina, or Benjamin Fig. Ficus
benjamina is the familiar ficus tree of shopping
malls and hotel lobbies, noted for its handsome,
silvery-gray bark and glossy green leaves. In warm
climates, ficus trees are regularly planted as part
of the outdoor landscape, where their versatility
allows them either to be grown as shade trees or
pruned into hedges. In colder regions, Ficus
benjamina is often chosen for interiorscapes because
it has the size and appearance of a familiar outdoor
tree, bringing a welcome sense of the outside in.
Given enough room and adequate light, they can grow
to be two stories or more tall. Because of their
tropical origins, ficus trees cannot tolerate
temperatures below freezing, and they'll often drop
their leaves if the thermometer dips below 50° F.
Another member of the ficus family is the enduring
rubber tree (Ficus elastica), a plant that has been
grown indoors for generations. With its bold,
leathery, dark green leaves and coarsely textured
stem, the rubber tree presents a distinctly
masculine appearance. The cultivar 'Decora' has even
darker leaves with a reddish cast to them. Similar
in habit to the rubber tree, but less commonly seen,
is the fiddle-leaf fig (Ficus lyrata), which has
glossy, broadly pear-shaped leaves up to 18" long
with deeply impressed veins, giving it a very
sculptural appearance. Like the rubber tree, the
fiddle-leaf fig reaches a height of 40 feet or more
in its natural environment of tropical Africa. But
don't worry; it's easy to keep within bounds in your
living room just by pruning it back.
Image of Rubber Plant
Ficus elastica
All of the arborescent (tree-like) members of the
ficus family respond well to the
same care. Allow them to become slightly dry between
thorough waterings. Never permit the soil to get so
dry that the leaves wilt, which indicates that the
fine root hairs that absorb moisture and nutrients
are dying. Conversely, never let the soil become
soggy and waterlogged, a condition that will drown
the root hairs and quickly cause leaves to drop.
Provide bright light; preferably near a sunny
window, but most ficus trees will adapt to lower
light situations. Ficus plants are heavy feeders, so
fertilize monthly, spring and summer, with a
balanced houseplant food. The large-leaved members
of the ficus clan will accumulate dust, thereby
blocking light from reaching the leaf surfaces, so
be sure to wipe them regularly with a damp cloth or
sponge. Ficus trees are somewhat notorious for
dropping their leaves when they're moved. Don't
worry too much if this happens; the plant is
acclimating to its new environment and will grow new
leaves once it's adjusted.
You may be surprised to know that there is a small,
vining, ivy-like member of the ficus family: the
creeping fig (Ficus pumila). The creeping fig is a
popular outdoor groundcover in tropical regions,
where it will enthusiastically climb walls and tree
trunks by means of its strongly adhesive aerial
roots. This ficus has diminutive (1" or less) leaves
on slender, thread-like stems. It thrives in a
moist, warm, and humid environment.
Philodendrons are a diverse group of plants,
encompassing many forms from small, trailing vines
to giant trees. The word 'philodendron' itself means
'tree-loving', referring to the vines' tendency to
grow up the trunks of trees in their native tropical
jungles. Because philodendrons are well adapted to
the shady conditions of the rain forest floor, they
are excellent candidates for surviving in the
low-light interiors of many homes and offices.
Image of Tree Philodendron
Philodendron selloum
One
of the more sculptural philodendron varieties in
cultivation is the tree philodendron (Philodendron
selloum), which produces broad, shield-shaped leaves
that are deeply incised along the wavy margins,
creating long finger-like lobes. The cuts become
deeper and wavier, and thus more dramatic, as the
plant matures and the leaves become larger. Though
it grows somewhat slowly, this philodendron has the
potential to reach large proportions, gradually
forming a thick and interestingly patterned 'trunk'
as it naturally drops older leaves in favor of new
ones. It also produces long, ropey aerial roots,
which may be tucked back into the pot in order to
help nourish the plant.
Hybridizers have, for years, been developing new
philodendron cultivars with unusually colored
foliage. These are bold-leaved plants with a
masculine personality. For example, 'Black Cardinal'
is a low-growing, shrubby philodendron with
spade-shaped leaves that are so dark, they appear to
be almost black. 'Prince of Orange' sports bright,
bronze-toned leaves on vivid orange stems.
Philodendron 'Moonlight' produces new leaves with a
bright chartreuse color that ages to a subtle
gray-green. The new foliage on 'Imperial Red'
unrolls in a deep burgundy-red color, becoming dark
green with a burgundy tint as it matures. All of
these philodendrons are known as "self-heading"
varieties, meaning that they grow slowly and stay
low and compact, neither vining (and needing a bark
support) nor developing a trunk like Philodendron
selloum.
While most philodendrons are happy enough in
low-light situations, the more colorful ones require
brighter locations. All philodendrons should be kept
evenly moist at all times, and fertilized regularly.
The climbing types should be grown on a support,
like a tree bark totem pole. Otherwise, the
newly-produced leaves will become smaller and
smaller. See our earlier newsletter for more
philodendron care instructions.