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Additional resources for Commercial Propagation of Orchids in Tissue Culture: Seed-Flasking Methods
We are often not aware of our losses and their value until they are gone. Elderly people describe the flowers that used to grow thick in our area, attracting butterflies and birds, but these flowers are no longer found. Crested irises, lady slippers, snow trilliums, wild lilies, showy orchis, and cardinal flowers were commonplace only fifty years ago but now are virtually impossible to find. Native plants such as these are especially susceptible to herbicides and changes in the environment. The chemical contact weakens the flowers that do survive, so the seedpods may be mutated and unable to produce a normal offspring.
Do not Page 21 get in a hurry and harvest them before they are mature and dry. However, you will need to watch the plants that throw seeds from their pods. These are mainly small spring and summer varieties, such as the violet, phlox, and puccoon. Tie a thin muslin bag around the seed head so the seeds are not lost. Once the colorful bloom is gone, small plants are difficult to find. In the summer the taller plants quickly shoot up and hide them. For example, it is disappointing to go back and not be able to find a wood lily when the red petals are gone and the plant is surrounded by tall saw-tooth sunflowers.
When this method of harvest is chosen, species that ripen and hold their seeds in the fall must be selected. The time that they can be combined is limited to about a two-week period in the first half of October. Self-propelled combines can be used, but some do better than others in combining the fluffy seeds. The combine is set to cut 8 to 10 inches off the ground. Airflow must be limited almost completely so the seeds are not lost, and leaves and stems need to be dry to go through the combine.