Herbaceous Ornamentals Flashcards
Plants with fleshy, soft, or succulent stems. Many for back to the ground in the winter, but some are evergreen
Herbaceous
A plant that completes its lifecycle in one growing season
Annual
Plants that can live for many years, although genetic factors and suitability for the location and site also impact longevity
Perennial
A plant that needs a portion of two growing seasons to complete its life cycle
Biennial
Plants that will survive a mild winter but may be killed in colder or harsher winters. Often these are perennial in a zone warmer.
Tender perennial or half-hardy annual
Plants that may be annual or perennial in their native range, but act as annuals in Tennessee landscapes due to their inability to survive freezing temperatures and poor performance in cool temperatures (below 50° F).
Tropicals
Plants used for culinary or medicinal purposes due to a range of properties including taste and fragrance. They can be annual, biennial, or perennial.
Herbs
The first question to ask when planning for herbaceous plantings is “What is really ____ on this site?”
Possible
What is not a component in the environment of the planting bed for herbaceous plants in the landscape?
A. Soil moisture
B. Soil type
C. Plant cultivar
D. Sunlight
E. Air movement
C.
__________ means the site gets a few hours of direct sunlight during the day, but plant survival and performance are greatly impacted by whether the direct light is during the _______ or _______.
A. Dappled shade, evening, morning
B. Full sun, morning, afternoon
C. Partial shade, cool, raining
D. Partial shade, morning, afternoon
D.
What is the main difference between an annual and a biennial plant?
The amount of time it takes to complete their growing cycles; 1 growing season for annuals; parts of 2 growing seasons for biennials
True or False: Groundcovers should only be used in challenging areas or locations where low maintenance is desired.
False
Which statement(s) is/are true about bed preparation for herbaceous plants?
A. No soil is perfect for every plant
B. Soil amendments, such as sand, can quickly remedy a poorly drained site
C. Generally, a good target soil pH is 6.3-6.8
D. Multiple applications of herbicide may be needed for some weeds
E. All of the above
F. All but one of the above
F.
(B is false)
It is common for losses of herbaceous plants to be blamed on _______, but actually the death was likely the result of ________.
cold temperatures; poor drainage
Should be planted in the fall to enable dormancy to initiate bloom
Spring flowering bulb
Should be planted immediately
Bare root plant
Can be removed from bed, dried, and stored over the winter in a frost-free area to replant the next year
Tender bulbs and rhizomes
Annual plants that provide quick color in the landscape that can be purchased or started from seed
Bedding plant
Fall planting is often best to enable establishment and root growth
Hardy perennials in containers
Which of the following are things that a gardener should keep in mind about managing herbaceous plants in the landscape?
A. Wilting does not necessarily mean the plant is dry.
B. Heavy fertilization can actually reduce bloom in some cases.
C. Insect feeding damage should be weighed against potential pollinator impact in deciding when or if to spray.
D. Landscape fabric can actually increase the difficulty of removing weeds.
E. All of the above
E.
Which statement(s) about designing with herbaceous plants in the landscape is/are true?
A. Principles of design are not necessary wen planting flowering annuals and other herbaceous plants.
B. To achieve satisfactory results, the rules of the color wheel must be followed in planting beds.
C. Tall plants should be placed only at the back of the planting bed.
D. Monochromatic plantings do not provide enough interest in the residential landscape.
E. Color, form, texture, and the line can be used in the design and application of herbaceous plantings, but the gardener’s eye is important.
E.
Which of the following are incorrect about using herbaceous plants in the landscape?
A. Herbs are often well suited to full sun and ‘lean’ nutrition.
B. How a groundcover spreads should be an important consideration.
C. The movement of grasses can be an important contribution to the landscape.
D. All ferns require very moist and shady locations.
E. The UT Gardens trial results and plantings can be an excellent source of information on regional use and adaptability in TN.
F. None of the above.
D.
