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Plant of the Month

March 1999

Cyclamen coum ssp coum

by Nina Lambert

Cyclamen coum ssp coum is among the hardiest of the nineteen recognized species of cyclamen and is readily distinguished from the less cold tolerant and more temperamental relation, C. c. subspecies caucasicum, by the white 'nose' at the base of the corolla lobe or petal.

Although cyclamen are indigenous primarily to areas surrounding the Mediterranean and Black Seas, the shape of their blossoms resembles those of a North American native, the dodecatheon or 'Shooting Star'. Both are Primulaceae, their elegant flowers exhibiting the characteristic of five petals joined at the base.

As a species, C. coum is widely distributed across the Middle East, being found both at sea level and in mountainous areas as far west as the Aegean Islands and Turkey at the eastern end of the Mediterranean Sea, south into Lebanon and Syria, north into Bulgaria, eastward around the Black Sea and over into Iran to the Caspian Sea.

Like all cyclamen grown out-of-doors, Cyclamen coum ssp coum requires good drainage, protection from the full force of the summer sun and winter winds and the addition of top dressing to ensure that mature tubers remain well covered as they enlarge with age and that fresh seed gets covered and anchored against surface wash. Seed set is copious, as many as thirty five to a capsule. Left undisturbed, Cyclamen coum ssp coum will colonize in the open garden.

Flower buds are formed in the Fall, stretch out under the surface of the soil and emerge when conditions favor during the winter and early spring. Color ranges from deep magentas and crimsons through the pink shades to the less common white. The leaves vary as to pattern and depth of coloration, the full measure of which usually does not emerge until after the third year of growth. No matter when they bloom, cyclamen ripen their seed as the plants go dormant with the advent of drier soil and continuous hot weather in the late spring and most germinate with added moisture in the cooler temperatures of the Fall. Since new root growth commences during the peak of summer dormancy, in northern gardens cyclamen are best moved prior to mid-August, preferably during the late spring and early summer.