Propagation Methods
Budding
Cuttings
Division
Layering
Grafting
Tissue Culture
Bulbs
Corms
Offsets
Rhizomes
Runners
Seeds

Propagation Media

Technique By Plant

Income Propagation

Plant Propagation Technique
Corms

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A corm is a solid object, usually quite firm, instead of being formed of layers or scales like a true bulb. The method of growth is also entirely different. A true bulb may live indefinitely as a single unit or may increase by splitting itself up, but a mature corm actually withers and dies after a year of growth,

being replaced by a new corm or corms that form on top of the old one but sometimes beneath or alongside it.

A corm is a shortened, fleshy, erect underground stem with inconspicuous scale-like leaves. It closely resembles, and is often mistakenly identified as, a bulb (as the "bulbs" of Gladiolus and Crocus), but actually it is distinguished by being more definitely a modified stem.

The stem character of bulbs is obscured by their very fleshy leaves. From the prominent terminal bud and smaller ones in the axils of its scale-like leaves, corms develop new plants, and often small, subsidiary corms known as cormels. Gladioulus, Freesia, Tritonia and Caladium all grow from corms.

Gladiolus Corm

Freesia Corm

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ARTICLES
CORM PROPAGATION

Fall Storage of Tender Bulbs, Corms & Tubers
By Sherry Rindels, Department of Horticulture
Iowa State University, Ames, Iowa.