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Horticulture Principles and Practices

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may be divided such that each section contains an eye, or bud. The cut surface is dusted<br />

with a fungicide such as captan before planting. Some tubers produce tiny tubers that are<br />

used for propagating without dividing the tuber. Cyclamen is propagated from seed.<br />

SUMMARY<br />

Certain horticultural plants produce underground structures (e.g., bulbs, tubers, rhizomes,<br />

<strong>and</strong> corms) by which they may be propagated. Bulbs add color to the l<strong>and</strong>scape<br />

<strong>and</strong> are most effective when massed in the pot. Bulbs may be planted indoors in containers.<br />

They may be planted as naturalizing plants in lawns to make use of the plot when<br />

the grass becomes dormant in winter. Tubers generally do not produce offsets <strong>and</strong> are<br />

propagated by division.<br />

REFERENCES AND SUGGESTED READING<br />

Hartman, H. T., <strong>and</strong> D. E. Kester. 1983. Plant propagation: <strong>Principles</strong> <strong>and</strong> practices,<br />

4th ed. Englewood Cliffs, N.J.: Prentice Hall.<br />

Hartman, H. T., A. M. Kofranek, V. E. Rubatzky, <strong>and</strong> W. L. Flocker. 1988. Plant science:<br />

Growth, development, <strong>and</strong> utilization of cultivated plants, 2d ed. Englewood Cliffs,<br />

N.J.: Prentice Hall.<br />

L<strong>and</strong>scape plants<br />

http://classes.hortla.wsu.edu/hort231/<br />

Sunset Magazine <strong>and</strong> Book Editors. 1985. Bulbs for all seasons, 4th ed. Menlo Park,<br />

Calif.: Sunset-Lane.<br />

OUTCOMES ASSESSMENT<br />

1. What are bedding plants?<br />

2. Discuss the role of ground covers in the l<strong>and</strong>scape.<br />

3. Distinguish between formal <strong>and</strong> informal garden designs.<br />

4. Discuss three specific factors to consider in planting tree seedlings in the l<strong>and</strong>scape<br />

to enhance their success.<br />

5. List five key factors that affect the selection of l<strong>and</strong>scape trees.<br />

6. Give three shrubs with attractive fall colors in the l<strong>and</strong>scape.<br />

7. What is the purpose of forcing in bulb propagation?<br />

8. Discuss the planting of bulbs in the l<strong>and</strong>scape.<br />

Outcomes Assessment 541

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