A walk through any Marin market will reveal bins piled high with a dazzling array of peppers in many colors, shapes, and sizes. Those familiar market staples offer only a small sampling of the vast choices available to home gardeners eager to grow something new. Our fascination with peppers is the most recent chapter in a much longer story that began in the late 15th century, when European explorers stumbled upon thriving agricultural systems in the Americas that were already thousands of years old. Enthralled by their heat and flavor, explorers carried pepper seeds and plant materials back to the Old World. Five species of the plant genus Capsicum created an instant culinary sensation that went viral, quickly spreading worldwide. The genetic diversity that had begun thousands of years earlier expanded dramatically as peppers were bred by gardeners and adopted into cuisines across Africa, Asia, and Australia. Today, more than 6,000 commercially named varieties of peppers trace their ancestry to just five species native to Central and South America.
Marin gardeners can share in this extraordinary story, and it’s not too late to begin a new chapter at home. Grown as annuals in Marin, peppers are considered a warm-season crop, and starting from seed is still possible, even in late March. Seed starting does require more planning, patience, and a bit of shopping. A recent visit to a local nursery revealed more than forty varieties on a single seed rack, while online sources offer hundreds more. The selection available from seed far exceeds the choices of seedlings that may later appear at garden centers. Seeds selected from local garden centers or California-based seed companies often carry an added advantage: they have been chosen with regional conditions in mind, giving them a strong likelihood of success in Marin’s diverse gardens. California Wonder, Early Jalapeño and Cherry Bomb F1 are among the many varieties chosen by the Marin Master Gardeners for our unique Mediterranean climate.
Peppers are slow to germinate. Even in a toasty greenhouse, and aided by gentle bottom heat and ideal light, moisture, and humidity it will take six to ten weeks before seedlings are ready to harden off and plant outdoors. Seeds planted in March can produce seedlings ready for the garden by May or early June. Everything is temperature dependent. After a week to 10 days of hardening, and once nighttime temperatures remain consistently above 55° F with daytime temps between 65 and 85°F, pepper seedlings can be planted outdoors. In warmer inland areas, this often occurs by mid to late April. In cooler, coastal, or fog-influenced gardens, transplanting may need to wait until May. Many early varieties recommended for Marin will begin producing 60 to 70 days after planting, with harvests beginning in late summer and continuing into October or even November.
Garden site selection can also be critical. Peppers will thrive in the warmest, sunniest spot you can provide. They should never be planted where tomatoes, potatoes, or eggplants have been grown within the past three years, allowing soil time to clear pests and pathogens common to these nightshade relatives. For this reason, many gardeners grow peppers in containers or fabric grow bags filled with sterile potting soil. A well-hydrated five-gallon grow bag will weigh between 25 and 30 pounds, making it possible to move plants to safety during cold snaps or storms while providing stability. Peppers will need support once fruiting begins. A simple stake or cage works well. While smaller containers will still produce a modest harvest, larger pots generally yield more peppers.
Growing peppers in Marin County is more than simply producing a beautiful and tasty harvest. It is a chance to take part in an ancient culinary and gardening tradition, adapted to our unique climate and landscapes. Each pepper grown here links a modern home garden to thousands of years of human curiosity, selection, and exchange, an enduring story that continues to grow, one plant at a time.
By Terry Amerson, March 21, 2026