Barbera grapes thrive in slightly warmer mountain climates. The optimal temperature range  between 77°F - 90°F (25°C - 32°C).

Monferrato is a region in Piedmont Italy known for its Barbera cultivation. Barbera is also planted in the USA, Australia & Argentina.

Riesling grapes thrive in cooler climates with temperatures that average between  55°F - 63°F (13°C - 17 °C) during the growing season.

Germany being their primary home, Riesling grapes are also cultivated in France (Alsace), Austria, United States, and Australia.

Apple orchards generally thrive in temperate climates with cool winters and moderate summers. The ideal temperature range for growth is typically between 65°F - 80°F (18°C - 27°C), but this can vary depending on the specific apple variety.

The top apple-producing countries are China, United States of America, Poland, Turkey & Italy.