Begonias aren’t dramatic plants—they’re environmentally precise plants. In this Begonia Care 101, I break down the three main structural types (rhizomatous/Rex, cane, and fibrous rooted) and why that matters for your care. Once you understand the structure, it’s so much easier to match your watering routine, pot depth, and soil blend to what your specific begonia actually needs. I also walk you through lighting (bright indirect), what “too much” vs “not enough” light looks like, and why consistency is more important than intensity with these plants. I go deep on watering because begonias are sensitive to root hypoxia—they need moisture and oxygen at the same time. I share my ideal moisture cycle (let the top 30–40% dry, keep slight moisture deeper down), plus the key differences between Rex vs cane begonias (Rex are crown sensitive and hate drying out). Then I repot a cane begonia, talk pot type/size (please give them drainage and don’t oversize), share an easy soil recipe (50/50 potting mix + drainage amendments), and cover humidity, airflow, temperature, support stakes, propagation (cane in water, Rex via leaf cuttings/division), fertilizing during the growing season, and my basic pest management routine.