Croton Society Information
The Croton Society is a non-profit organization dedicated to promoting
the introduction, propagation and distribution of new Croton species,
improved varieties and sports of Croton (Codiaeum variegatum) plants.
Through our quarterly meetings, seminars and field trips, we collect and
share croton information regarding
propagation techniques, growth
characteristics, cold and salt tolerances, and other environmental
requirements. The objectives of this Society are to promote interest
through education, research and development of the plant Codiaeum
vareigatum of the Euphorbia family (Croton).
Benefits of Croton Society Membership
Members exchange and auction cuttings, air layers and young plants at
Croton Society meetings or among themselves. Our goal is to make more varieties
of Crotons readily available. Members receive a quarterly newsletter and a
colorful calendar each year. New members have the opportunity to purchase
Dr. B. Frank's book, Crotons of the World, at the reduced price of $20.00.
Many of the members are specialists in specific varieties of Crotons, and
are eager to share this knowledge with others.
Croton Information
Croton (Codiaeum variegatum)
Family: Euphorbiaceae
Crotons with their colorful, glossy foliage and variation of leaf types
are one of the most popular plants in Florida. It is a native of the
tropics from Java to Australia and the South Sea Islands, and because of
its susceptibility to cold injury, is restricted to the southern and
warmer parts of central Florida. Cold injury normally shows as leaf
dropping soon after periods of cold weather.
Major leaf types
Broad Leaf Crotons - large and broad leaves
Oak Leaf Crotons - mimics perfectly the structure of a true oak leaf.
Semi-oak Leaf Crotons - indistinctly lobed; many varieties.
Spiral Leaf - leaves are twisted - RH, LH, partial.
Narrow Leaf - width is 2-4" and length is usually 2-4 x width.
Very Narrow Leaf - width is usually 1/2" or less; long and droopy.
Small Leaf - orignal shape; length about 2" max.
Interupted Leaf - leaf blade stops; midrib continues for about 1"; leaf
blade continues.
Recurved Leaf - leaves curl back on themselves; scarcest leaf type.
Pruning Information
Crotons may be pruned heavily during spring or other mild periods of
the year. Crotons may attain a height of 8-10 feet , and tend to produce
the heaviest foliage at the top of the plant. It is wise to cut back
rather heavily to force new foliage lower down on the stem. It is best to
prune about one-third of the branches, then wait until new growth has
started before pruning again. This keeps the plant more uniform in shape
and more attractive during the pruning process. Pinching out the tips of
Crotons will encourage multi-branching and therefor a more attractive,
fuller specimen.
Propagation Information
Crotons are easily propagated from greenwood cuttings, leaf bud
cuttings, or if plants are desired quickly, by air layering. Make your
cuttings from 4-12 inches in length and insert them in sand or peat, or in
a mixture of the two, for rooting. In air layering, a ring of bark is
removed from the branch to be layered, from two cuts spaced from one-half
to one inch apart, exposing the wood. The cambium layer, a slight green
area immediately underneath the bark, should be completely removed to
prevent new bark from forming again rather than roots. Wrap the cut
surface with a ball of moist sphagnum moss about as big as a man's fist.
The entire ball is then wrapped with plastic film or aluminum foil. The
plants will root quickly at the point the cut was made, and after the
roots are established, the branch is removed from the parent just below
the roots, and planted in a pot or in the garden where it is to grow.
Growing Information
Crotons develop their best leaf colors when planted in shifting sun.
Plants placed in shade or semi-shade tend to develop a large amount of
green color. Soil should be enriched with compost, muck, or peat moss, and
the plants fertilized regularly with a general purpose fertilizer,
preferable one that has an high acidic rating, such as an azealea
fertilizer. Also, up until September, use of high nitrogen is prfered.
After that only use a fertilizer that has more phosphorus and potash.
Pests and Diseases
Pests: scale, mites, thrips, and root rot diseases.
Meeting time and place
The Croton Society meets quarterly at
University of South Florida Botanical Gardens in Tampa, Florida.
Attention Croton Lovers
Our next meeting will be
Announced shortly
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