Zones 9-10: Hot
Zones 9 and 10 feature long, hot summers and exceptionally mild winters where freezing temperatures are rare. In these southern and coastal regions, the traditional gardening calendar is inverted, turning winter and early spring into the primary growing seasons for many standard vegetables.
Heat-loving, long-season crops like hot peppers, sweet potatoes, citrus trees, and tropical herbs thrive during the long summer. Meanwhile, cool-weather vegetables such as lettuce, broccoli, peas, and root crops do best when planted in late autumn to mature during the mild winter months.
The greatest hurdle for beginners in zones 9 and 10 is managing high summer heat and intense ultraviolet exposure. Standard cool-season crops will quickly bolt, turn bitter, or die if planted in late spring. Furthermore, warm winters mean pest populations rarely drop off completely. Protect your garden by shifting your tender plantings to the cooler months, choosing shade-tolerant or heat-resistant varieties for summer, and watering deeply to maintain soil moisture during hot spells.