Louisiana Horticulture Test Study Guide /
Actual Questions & Answers for Guaranteed
Pass / Newest Update
What is the difference between a cultivar and variety? - answer-Cultivar- A
plant or grouping of plants selected for desirable characteristics that can be
maintained by propagation
Variety- A naturally occurring subgroup of a species which has some
distinguishing characters
Who is Linnaeus? What system of naming plants did he create? - answer-
Linnaeus is a Swedish Botanist who developed the Binomial System of
Nomenclature(Genus + Species)
What are the two most critical environmental requirements pertaining to seed
germination? - answer-Water and Temperature
Vegetative propagation is also referred to as ____________ propagation. -
answer-Asexual
List some examples of ways to vegetatively propagate a plant. - answer-
Layering; division; separation
,Strawberry runners are commonly propagated by ________. - answer-Layering
Define grafting. - answer-The process of joining a scion (shoot) into a stock so
that cambium layers grow together and for a union of two plant parts
What steps should be followed when accepting an order at a retail garden
center? - answer-1. Check the order to be correct
2. Inspect the product to be healthy
3. Examine for pests
What are three indicators of a plant needing irrigation. - answer-1. Root ball is
not wet
2. Media has shrunk away from the pot
3. Weight of the pot is light and foliage is wilted
Why is cold damage common on container-growth ornamental plants at
temperatures of 20-25 degrees. - answer-Because these plants are grown
above ground where the root systems are not insulated
What is the optimum planting time for adding container-grown plants to a
landscape? Balled and burlapped plants? Bare-rooted plants? - answer-
Container Plants- best planted in Fall
Balled and Burlapped Plants- best planted Oct thru Mar
Bare Rooted Plants- best planted Dec thru Feb
, Should organic amendments be added to a planting hole when planting an
individual tree? - answer-Research has shown that amendments do not
significantly enhance the growth of ornamental plants
What are advantages of using mulches? - answer-Uniform soil moisture,
insulate roots from temperature extremes, reduce soil burn, disease on
foliage, and prevents weeds
What N/P/K ratio is recommended for fertilizer used on ornamental trees and
shrubs? - answer-4:1:2
Why prune? - answer-1. To eliminate dead, diseased, dying or wounded limbs
2. to improve the form and balance of a plant
3. to guide the growth habit
4. to stimulate new growth
5. to rejuvenate older plantings
6. to maintain a geometric shape (formal hedge, topiary, etc.)
What is the hormone in the terminal bud of plants that directs bud growth
along the stem? - answer-auxin
Define thinning out and heading back. - answer-Thinning out refers to the
complete removal of branches back to a lateral branch or main trunk.
Heading back removes the terminal portion of twigs back to an axillary bud or
node.
Actual Questions & Answers for Guaranteed
Pass / Newest Update
What is the difference between a cultivar and variety? - answer-Cultivar- A
plant or grouping of plants selected for desirable characteristics that can be
maintained by propagation
Variety- A naturally occurring subgroup of a species which has some
distinguishing characters
Who is Linnaeus? What system of naming plants did he create? - answer-
Linnaeus is a Swedish Botanist who developed the Binomial System of
Nomenclature(Genus + Species)
What are the two most critical environmental requirements pertaining to seed
germination? - answer-Water and Temperature
Vegetative propagation is also referred to as ____________ propagation. -
answer-Asexual
List some examples of ways to vegetatively propagate a plant. - answer-
Layering; division; separation
,Strawberry runners are commonly propagated by ________. - answer-Layering
Define grafting. - answer-The process of joining a scion (shoot) into a stock so
that cambium layers grow together and for a union of two plant parts
What steps should be followed when accepting an order at a retail garden
center? - answer-1. Check the order to be correct
2. Inspect the product to be healthy
3. Examine for pests
What are three indicators of a plant needing irrigation. - answer-1. Root ball is
not wet
2. Media has shrunk away from the pot
3. Weight of the pot is light and foliage is wilted
Why is cold damage common on container-growth ornamental plants at
temperatures of 20-25 degrees. - answer-Because these plants are grown
above ground where the root systems are not insulated
What is the optimum planting time for adding container-grown plants to a
landscape? Balled and burlapped plants? Bare-rooted plants? - answer-
Container Plants- best planted in Fall
Balled and Burlapped Plants- best planted Oct thru Mar
Bare Rooted Plants- best planted Dec thru Feb
, Should organic amendments be added to a planting hole when planting an
individual tree? - answer-Research has shown that amendments do not
significantly enhance the growth of ornamental plants
What are advantages of using mulches? - answer-Uniform soil moisture,
insulate roots from temperature extremes, reduce soil burn, disease on
foliage, and prevents weeds
What N/P/K ratio is recommended for fertilizer used on ornamental trees and
shrubs? - answer-4:1:2
Why prune? - answer-1. To eliminate dead, diseased, dying or wounded limbs
2. to improve the form and balance of a plant
3. to guide the growth habit
4. to stimulate new growth
5. to rejuvenate older plantings
6. to maintain a geometric shape (formal hedge, topiary, etc.)
What is the hormone in the terminal bud of plants that directs bud growth
along the stem? - answer-auxin
Define thinning out and heading back. - answer-Thinning out refers to the
complete removal of branches back to a lateral branch or main trunk.
Heading back removes the terminal portion of twigs back to an axillary bud or
node.
