You might expect a lot of sex talk in a class on propagation; you would then be disappointed to learn that gardeners prefer asexual propagation.
Asexual propagation is cloning; the resulting plants are genetically the same as the parent plant.
- Plants propagate sexually and asexually.
- Sexual propagation involves seeds and spores.
- Asexual propagation involves a number of techniques requiring human intervention.
- Division (of roots)
- Grafting and budding
- Micro propagation (requires a lab)
- Asexual propagation involves more materials and work than I plan to invest. (This may be the most important lesson I learned. Self-knowledge is a good thing.)
- Germination – Sprouting of seed and start of plant growth.
- Layering – Probably the neatest kind of vegetative propagation. You take a stem still attached to a parent plant and place them in a rooting medium – it can be the ground – where they grow their own roots and can be cut from the parent plant, resulting in two plants, the parent and the clone.
- Seed scarification – Breaking, scratching or softening the seed coat to that water can enter and begin germination.
- Seed Stratification – Some seeds must be chilled to dormancy lest they germinate before conditions are satisfactory for their survival, i.e., remaining dormant over the winter. Creating this dormancy artificially is called stratification.
- Vermiculite – Heat-treated, expanded mineral used to condition soil, start seeds, or root cuttings; holds moisture and nutirents well, acting as a soil substitute.
Along the parking lot at Green Spring Gardens.
Read chapter on Entomology. Mid-term next Thursday!