Florida Landscape Contractor Exam
2026 — 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. Which soil characteristic most directly affects the amount of water
available to landscape plants?
A. Soil color
B. Soil texture
C. Soil temperature
D. Soil odor
Answer: Soil texture
Rationale: Soil texture describes the relative proportions of sand, silt, and clay
and strongly influences water-holding capacity, drainage, and plant-available
water.
2. Which soil particle is the largest?
A. Clay
B. Silt
C. Sand
D. Humus
Answer: Sand
Rationale: Sand particles are larger than silt and clay particles and generally
provide greater drainage and aeration.
, 3. What is the primary purpose of adding organic matter to many landscape
soils?
A. Increase soil compaction
B. Improve soil structure
C. Eliminate all soil microorganisms
D. Prevent root growth
Answer: Improve soil structure
Rationale: Organic matter can improve aggregation, water-holding capacity,
nutrient retention, and biological activity.
4. What soil condition generally results when heavy equipment repeatedly
travels over wet soil?
A. Increased porosity
B. Reduced compaction
C. Soil compaction
D. Increased infiltration
Answer: Soil compaction
Rationale: Traffic on wet soil compresses soil particles, reducing pore space and
restricting air, water movement, and root development.
5. Which soil pH range is generally suitable for many landscape plants?
A. 2.0–3.0
B. 4.0–4.5
C. 6.0–7.0
D. 9.5–10.5
Answer: 6.0–7.0
Rationale: Many common landscape plants perform well in mildly acidic to
neutral soil, although individual species have different requirements.
, 6. What is the best way to determine whether a soil amendment is needed for
a landscape installation?
A. Guess from soil color
B. Conduct a soil test
C. Add fertilizer automatically
D. Add lime to every site
Answer: Conduct a soil test
Rationale: Soil testing provides information about pH, nutrient levels, and other
conditions that can guide appropriate amendments.
7. What is the main function of mulch around landscape plants?
A. Eliminate all rainfall
B. Conserve moisture and moderate soil temperature
C. Replace irrigation permanently
D. Prevent all insect activity
Answer: Conserve moisture and moderate soil temperature
Rationale: Proper mulch can reduce evaporation, moderate soil temperatures,
suppress some weeds, and protect soil structure.
8. How should mulch generally be placed around the trunk of a tree?
A. Packed tightly against the trunk
B. Formed into a tall mound against the trunk
C. Kept away from direct contact with the trunk
D. Buried below the root flare
Answer: Kept away from direct contact with the trunk
Rationale: Mulch piled against trunks can retain excessive moisture and
encourage decay, pests, and other trunk problems.
, 9. Which planting practice is most likely to cause long-term problems for a
tree?
A. Planting at the proper depth
B. Maintaining the root flare
C. Planting too deeply
D. Applying appropriate mulch
Answer: Planting too deeply
Rationale: Deep planting can restrict oxygen to roots and contribute to stem and
root problems.
10.What should be considered when selecting a plant for a landscape site?
A. Only flower color
B. Mature size and site conditions
C. Only purchase price
D. Only nursery container size
Answer: Mature size and site conditions
Rationale: Plant selection should account for mature size, sunlight, soil,
moisture, climate, function, and available space.
11.Which factor is most important when determining whether a plant will
tolerate a particular location?
A. Its mature height only
B. Its environmental requirements
C. The color of the container
D. The price of the plant
Answer: Its environmental requirements
Rationale: Plants must be matched to factors such as sunlight, soil moisture,
drainage, temperature, and soil conditions.
2026 — 100 Questions & Answers with
Detailed Rationales | Complete Exam
Prep & Study Guide
1. Which soil characteristic most directly affects the amount of water
available to landscape plants?
A. Soil color
B. Soil texture
C. Soil temperature
D. Soil odor
Answer: Soil texture
Rationale: Soil texture describes the relative proportions of sand, silt, and clay
and strongly influences water-holding capacity, drainage, and plant-available
water.
2. Which soil particle is the largest?
A. Clay
B. Silt
C. Sand
D. Humus
Answer: Sand
Rationale: Sand particles are larger than silt and clay particles and generally
provide greater drainage and aeration.
, 3. What is the primary purpose of adding organic matter to many landscape
soils?
A. Increase soil compaction
B. Improve soil structure
C. Eliminate all soil microorganisms
D. Prevent root growth
Answer: Improve soil structure
Rationale: Organic matter can improve aggregation, water-holding capacity,
nutrient retention, and biological activity.
4. What soil condition generally results when heavy equipment repeatedly
travels over wet soil?
A. Increased porosity
B. Reduced compaction
C. Soil compaction
D. Increased infiltration
Answer: Soil compaction
Rationale: Traffic on wet soil compresses soil particles, reducing pore space and
restricting air, water movement, and root development.
5. Which soil pH range is generally suitable for many landscape plants?
A. 2.0–3.0
B. 4.0–4.5
C. 6.0–7.0
D. 9.5–10.5
Answer: 6.0–7.0
Rationale: Many common landscape plants perform well in mildly acidic to
neutral soil, although individual species have different requirements.
, 6. What is the best way to determine whether a soil amendment is needed for
a landscape installation?
A. Guess from soil color
B. Conduct a soil test
C. Add fertilizer automatically
D. Add lime to every site
Answer: Conduct a soil test
Rationale: Soil testing provides information about pH, nutrient levels, and other
conditions that can guide appropriate amendments.
7. What is the main function of mulch around landscape plants?
A. Eliminate all rainfall
B. Conserve moisture and moderate soil temperature
C. Replace irrigation permanently
D. Prevent all insect activity
Answer: Conserve moisture and moderate soil temperature
Rationale: Proper mulch can reduce evaporation, moderate soil temperatures,
suppress some weeds, and protect soil structure.
8. How should mulch generally be placed around the trunk of a tree?
A. Packed tightly against the trunk
B. Formed into a tall mound against the trunk
C. Kept away from direct contact with the trunk
D. Buried below the root flare
Answer: Kept away from direct contact with the trunk
Rationale: Mulch piled against trunks can retain excessive moisture and
encourage decay, pests, and other trunk problems.
, 9. Which planting practice is most likely to cause long-term problems for a
tree?
A. Planting at the proper depth
B. Maintaining the root flare
C. Planting too deeply
D. Applying appropriate mulch
Answer: Planting too deeply
Rationale: Deep planting can restrict oxygen to roots and contribute to stem and
root problems.
10.What should be considered when selecting a plant for a landscape site?
A. Only flower color
B. Mature size and site conditions
C. Only purchase price
D. Only nursery container size
Answer: Mature size and site conditions
Rationale: Plant selection should account for mature size, sunlight, soil,
moisture, climate, function, and available space.
11.Which factor is most important when determining whether a plant will
tolerate a particular location?
A. Its mature height only
B. Its environmental requirements
C. The color of the container
D. The price of the plant
Answer: Its environmental requirements
Rationale: Plants must be matched to factors such as sunlight, soil moisture,
drainage, temperature, and soil conditions.
