FLORIDA IFAS MASTER GARDENER QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
*Core Domains
Botany
Soil Management
Entomology
Plant Pathology
Integrated Pest Management
Florida-Friendly Landscaping*
This comprehensive exam assesses the knowledge and skills required for certification as a Florida Master
Gardener Volunteer. The test evaluates understanding of core horticultural principles, plant science, soil
management, pest identification and control, disease diagnosis, and environmentally responsible gardening
practices specific to Florida's unique climate and ecosystems. The multiple-choice format includes both
foundational theory questions and scenario-based items that require critical thinking and real-world
decision-making. Emphasis is placed on applying UF/IFAS research-based information to solve common
gardening problems, selecting appropriate plant species for Florida landscapes, implementing sustainable
pest management strategies, and making informed decisions that protect water quality and native
biodiversity. Candidates must demonstrate proficiency in both theoretical knowledge and practical
application to successfully support UF/IFAS Extension's mission of educating Florida residents about science-
based gardening practices.
SECTION ONE: QUESTIONS 1–100
,Question 1
Which soil pH range is considered optimal for most Florida ornamental plants and vegetables?
A. 3.5–4.5
B. 5.5–6.5
C. 7.5–8.5
D. 9.0–10.0
🟢 B. 5.5–6.5
🔴 RATIONALE: Most Florida ornamental plants and vegetables grow best in slightly acidic soil with pH
between 5.5–6.5. At this range, essential nutrients like nitrogen, phosphorus, potassium, calcium, and
magnesium are most available to plants. Florida's natural soils often are more acidic, making this the target
range for optimal plant growth.
Question 2
What is the primary purpose of the Florida-Friendly Landscaping™ program's first principle, "Plant the Right
Plant in the Right Place"?
A. To reduce water consumption by selecting drought-tolerant species
B. To minimize maintenance costs and prevent plant stress
C. To ensure plants thrive without excessive inputs while supporting ecosystem health
D. To comply with local municipal landscaping ordinances
,🟢 C. To ensure plants thrive without excessive inputs while supporting ecosystem health
🔴 RATIONALE: The Florida-Friendly Landscaping™ program emphasizes selecting plants suited to specific
site conditions (light, soil, moisture, space) to ensure they grow健康ly without requiring excessive water,
fertilizer, or pesticide inputs. This approach reduces environmental impact while creating sustainable
landscapes that support local ecosystems.
Question 3
Which insect order includes beetles, which are characterized by having hardened front wings called elytra?
A. Apis
B. Coleoptera
C. Diptera
D. Hemiptera
🟢 B. Coleoptera
🔴 RATIONALE: Coleoptera is the scientific order for beetles, distinguished by their hardened front wings
(elytra) that protect the delicate flying wings underneath. Beetles represent the largest insect order with over
350,000 species worldwide, including many garden pests like Japanese beetles and20+ species of scarab
beetles that damage Florida gardens.
Question 4
, What is the recommended minimum frequency for irrigation in Florida landscapes during the dry season
(November–April) according to UF/IFAS guidelines?
A. Daily
B. Twice weekly
C. Once weekly
D. Every three days
🟢 C. Once weekly
🔴 RATIONALE: UF/IFAS Florida-Friendly Landscaping™ recommends irrigating Florida landscapes only
once weekly during the dry season (November–April), applying approximately ½ inch of water per irrigation.
This prevents overwatering, reduces nutrient leaching, and encourages deeper root growth while maintaining
plant health.
Question 5
Which plant disease symptom is characterized by dark, necrotic spots on leaves often surrounded by a yellow
halo?
A. Powdery mildew
B. Leaf spot
C. Wilting
D. Botrytis blight
🟢 B. Leaf spot
ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT DOWNLOAD PDF
*Core Domains
Botany
Soil Management
Entomology
Plant Pathology
Integrated Pest Management
Florida-Friendly Landscaping*
This comprehensive exam assesses the knowledge and skills required for certification as a Florida Master
Gardener Volunteer. The test evaluates understanding of core horticultural principles, plant science, soil
management, pest identification and control, disease diagnosis, and environmentally responsible gardening
practices specific to Florida's unique climate and ecosystems. The multiple-choice format includes both
foundational theory questions and scenario-based items that require critical thinking and real-world
decision-making. Emphasis is placed on applying UF/IFAS research-based information to solve common
gardening problems, selecting appropriate plant species for Florida landscapes, implementing sustainable
pest management strategies, and making informed decisions that protect water quality and native
biodiversity. Candidates must demonstrate proficiency in both theoretical knowledge and practical
application to successfully support UF/IFAS Extension's mission of educating Florida residents about science-
based gardening practices.
SECTION ONE: QUESTIONS 1–100
,Question 1
Which soil pH range is considered optimal for most Florida ornamental plants and vegetables?
A. 3.5–4.5
B. 5.5–6.5
C. 7.5–8.5
D. 9.0–10.0
🟢 B. 5.5–6.5
🔴 RATIONALE: Most Florida ornamental plants and vegetables grow best in slightly acidic soil with pH
between 5.5–6.5. At this range, essential nutrients like nitrogen, phosphorus, potassium, calcium, and
magnesium are most available to plants. Florida's natural soils often are more acidic, making this the target
range for optimal plant growth.
Question 2
What is the primary purpose of the Florida-Friendly Landscaping™ program's first principle, "Plant the Right
Plant in the Right Place"?
A. To reduce water consumption by selecting drought-tolerant species
B. To minimize maintenance costs and prevent plant stress
C. To ensure plants thrive without excessive inputs while supporting ecosystem health
D. To comply with local municipal landscaping ordinances
,🟢 C. To ensure plants thrive without excessive inputs while supporting ecosystem health
🔴 RATIONALE: The Florida-Friendly Landscaping™ program emphasizes selecting plants suited to specific
site conditions (light, soil, moisture, space) to ensure they grow健康ly without requiring excessive water,
fertilizer, or pesticide inputs. This approach reduces environmental impact while creating sustainable
landscapes that support local ecosystems.
Question 3
Which insect order includes beetles, which are characterized by having hardened front wings called elytra?
A. Apis
B. Coleoptera
C. Diptera
D. Hemiptera
🟢 B. Coleoptera
🔴 RATIONALE: Coleoptera is the scientific order for beetles, distinguished by their hardened front wings
(elytra) that protect the delicate flying wings underneath. Beetles represent the largest insect order with over
350,000 species worldwide, including many garden pests like Japanese beetles and20+ species of scarab
beetles that damage Florida gardens.
Question 4
, What is the recommended minimum frequency for irrigation in Florida landscapes during the dry season
(November–April) according to UF/IFAS guidelines?
A. Daily
B. Twice weekly
C. Once weekly
D. Every three days
🟢 C. Once weekly
🔴 RATIONALE: UF/IFAS Florida-Friendly Landscaping™ recommends irrigating Florida landscapes only
once weekly during the dry season (November–April), applying approximately ½ inch of water per irrigation.
This prevents overwatering, reduces nutrient leaching, and encourages deeper root growth while maintaining
plant health.
Question 5
Which plant disease symptom is characterized by dark, necrotic spots on leaves often surrounded by a yellow
halo?
A. Powdery mildew
B. Leaf spot
C. Wilting
D. Botrytis blight
🟢 B. Leaf spot
