VIP Exclusive
CH Certified Horticulturist VIP Practice Exam
CH — The Certified Horticulturist (CH) credential is administered by the American Society for Horticultural Science (ASHS). The exam consists of approximately 150 multiple-choice questions administered over 3 hours, covering plant science, soils and fertility, propagation, pest management, landscape and production horticulture, and post-harvest technology. A score of approximately 72% is required to pass.
30
Questions
180m
Time Limit
72.00%
To Pass
Question 1 of 30👑 VIP
A greenhouse manager notices that tomato plants in one production bay are showing interveinal chlorosis on older, lower leaves first, while younger terminal leaves remain green. The most likely cause of this symptom pattern is a deficiency of which nutrient?
Questions 2–30 and full explanations are VIP-exclusive.