Citrus Season

By Dave Whitney, Produce Manager, Co-op Owner

Citrus is considered a winter fruit primarily because of its unique biological ripening cycle and the specific climate conditions of the regions where it thrives. 

Why It Ripens in Winter:

• Ripening Cycle: Citrus trees typically bloom in late winter or early spring. The fruit then takes several months to develop, reaching its peak sweetness and juiciness during the cooler months of late fall through early spring.
• Sugar Enhancement: Chilly nights and sunny winter days are ideal for citrus. The cooler temperatures trigger a process that increases the fruit’s natural sugar content, resulting in a sweeter, more flavorful harvest.
• Optimal Growing Regions: In major producing areas like California, Florida, Spain, and Italy, the mild winter climate provides the “just-right” conditions for the fruit to mature without freezing. 

Seasonal Significance:

• Peak Nutrition: Naturally high in Vitamin C, citrus arrives just as cold and flu season peaks, providing a timely boost to the immune system.
• Historical Traditions: Before global shipping, citrus was a rare winter luxury. This led to traditions like placing an orange in Christmas stockings to represent a gift of gold.
• Variety Availability: While some citrus like lemons are available year-round, specialty varieties like Blood Oranges, Satsumas, and Cara Caras are strictly seasonal winter treats. 

Seasonal Availability by Variety:

• Oranges:
  • Navel: Peak from November to May.
  • Valencia: Primarily a summer variety, available April through December.
  • Blood Orange: Limited winter season, typically December to April.
  • Cara Cara: High-season from January to April.
• Mandarins & Tangerines:
  • Satsuma/Clementine: Early season favorites, often peaking November to January.
  • Tangerines: Generally available November through May.
  • Honeybells: Very short season in February and March.
• Grapefruit:
  • Ruby Red/Pink: Best from November to May.
  • White Grapefruit: Peak period is November to January.
• Lemons & Limes:
  • Eureka/Lisbon Lemons: Available year-round.
  • Meyer Lemons: Shorter winter season, usually November to March.
  • Limes: Often available year-round, though peak freshness is often in summer or fall. 

Tips for Peak Selection:

• Weight: Choose fruits that feel heavy for their size, as this indicates higher juice content.
• Skin: Look for smooth, firm skin without soft spots or mold.
• Storage: Keep citrus at room temperature if consuming within a few days, or in the refrigerator crisper drawer for 2–3 weeks.