When to Plant in Riverside, CA

Riverside, California, has its median last spring frost date on January 26 and its median first fall frost date on December 23, allowing for approximately 331 frost-free days each year. This extended growing season provides ample opportunity for gardeners to cultivate a variety of plants, ensuring both early spring and late fall harvests. Gardeners can take advantage of this window to explore an array of fruits, vegetables, and ornamental plants that thrive in Riverside's unique conditions.

The microclimate in Riverside is classified as Mediterranean (mild, dry summers), which creates an ideal environment for many heat-loving crops. For instance, tomatoes, peppers, and eggplants flourish in this climate, as they appreciate the long, warm growing season and minimal rainfall during summer. However, crops like lettuce and peas may struggle due to the heat, as they prefer cooler temperatures and can bolt or become bitter when exposed to the prolonged warmth typical of Riverside summers.

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