Forget-me-nots thrive in cool climates and prefer partially shaded to full sun locations. They need well-drained, moist soil rich in organic matter, and consistent watering to prevent the soil from drying out, though care should be taken to avoid overwatering. Temperature extremes, both hot and cold, can stress forget-me-nots, with ideal temperatures ranging from 60 to 70°F (15 to 21°C). Forget-me-nots may encounter challenges such as powdery mildew, rust, and aphids. Seasonally, forget-me-nots require protection from intense heat in summer and heavy frost in winter. Spring is the primary growth season, whereas autumn may necessitate lesser watering and protection from cooler temperatures.