Certified Horticulturist Renewal (CHR) Certification Exam

Certified Horticulturist Renewal (CHR) The CHR renewal moves well beyond basic plant care, demanding precision with soil chemistry, integrated pest management protocols, and climate-responsive cultivation techniques. Test-takers often underestimate questions on ornamental breeding genetics and turf diagnostics. Expect rigorous scenario-based content requiring real-world problem-solving across diverse horticultural systems, not memorized definitions.