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Repetitive Flowering from a Single Floral Axis in Camellia1


An unusual flowering phenomenon has been observed for 4 consecutive years on an unnamed Camellia japonica clone, PI 276119. While many faded blossoms dropped from the plants, others remained firmly attached. The inner portion of the tightly folded center of each persistant faded blossom remained pinkish-white. These centers expanded and were similar to emerging flower buds except they did not have bud scales. Elongation of the old flower axis placed the new bud slightly above the old flower. Following a resting stage of 6 weeks to about 4 months, new blossoms developed on the same axis and directly above the old flowers. During the 1970 season as many as 3 successive blooms were observed one upon the other.
The physiological aspects of this phenomenon are contrary to normal flower bud development in camellia. Repetitive flowering from a single floral axis appears to violate the principle of determinate growth of flower buds.