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Camellia - Camellia sp.
General information:The
most famous member of the Camellia family is C. sinensis, the
plant from which we get tea. Tea can be made from other Camellia
species, but its flavor is not as desirable. But these other
Camellias make showy bonsai, with beautiful flowers and shiny
evergreen leaves. They can be grown outdoors in warm climates,
and are often grown as an indoor bonsai when they cannot be kept
otherwise. Most Camellias flower from fall through early spring.
When flower buds begin to appear, they
are delicate. They may fall off if the plant is moved, or if
there is too great a variation in temperature or light.
Lighting:
Partial shade to full sun.
Temperature:
Zone hardy to zones 8 or 9, depending on species. Never below
10F. Can be grown sucessfully indoors, but needs cool nights
(between 40-60F, but 50-59F is best) in winter. Likes ventilation,
but should be kept sheltered from strong winds.
Watering:
Moderate, but as the root hairs are very fine, the plant CAN
NOT be allowed to dry completely. Increase watering during active
growth, and when the plant is in bloom. It is best to use decalcified
(soft) water if possible. Likes an occasional misting, but do
not mist while in bloom or the flowers will wither.
Feeding:
Every 2-3 weeks, spring-autumn. Use a fertilizer such as Miracid,
formulated for acid-loving plants, at half- strength. Do not
fertilize while the plant is in bloom. The plant may also benefit
from administering chelated iron 2-3 times a year.
Pruning and wiring: Wire from late spring to autumn, taking care to
protect the delicate bark and branches. Do not wire while the
plant is setting buds, and wire only lignified shoots. Young
plants should be pruned after the shoots have developed 4-6 leaves,
trimmimg back to 2-3 to establish branching. Pruning of established
bonsai is best done following flowering, pruning only once and
then allowing new shoots to set buds.
Propagation:
By seed, soaking in warm water, for 24 hours, and then removing
the outer casing. Fast germinating. Also hardwood cuttings can
be taken from winter-summer, although rooting is slow and difficult.
The use of rooting hormone and bottom heat of 72F is recommended.
Air-layering is possible.
Repotting:
Every 2-4 years in late winter or spring, following blooming.
Likes acidic, humus rich soil. The roots are superficial and
fine, so drastic root pruning is not recommended, and it is best
if only 10% of the roots are removed.
Pests and diseases: Camellia is vulnerable to aphids, red spider mites
sooty mold, weevils and chlorosis.
Some species suitable for bonsai:
- Camellia cuspidata - Reputed to be somewhat
more hardy than the other members of the species, this plant
has abundant small white flowers.
- Camellia japonica: camellia, common camellia
- This is the most widely grown species. Although best known
as a shrub, it can grow into a tree over 30 feet tall. It has
oval leaves up to 4 inches, and most generally grows in zones
7-9 although some cultivars have been grown as far north as southern
New York. It is best known for its spectacular blooms, which
occur in late winter or early spring, and can be white, pink
or red. There are numerous cultivars, generally selected for
their various flowers.
- Camellia maliflora - A small flowered
variety.
- Camellia reticulata - A small-leaved,
shade-tolerant Camellia. It is hardy to zone 9. The white, pink
or red flowers can be found both single and double. Agressive
pruning is needed to promote branching.
- Camellia sasanqua: Sasanqua camellia -
Smaller than japonica, this Camellia has two inch leaves and
flowers, and grows only to 12 feet. Like C. japonica, it is hardy
in zones 7-9, and has many cultivars.
- Camellia sinensis: tea, tea plant, tea
bush - A white flowered variety, its small leaves and flowers
make it better proportioned for bonsai than other Camellia species.
- Camellia taliensis
- Camellia tsaii - another small flowered
Camellia.
- Camellia vernalis: Vernalis camellia
Compiled by Sabrina Caine
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