Every rare tree purchase supports historical orchard preservation

Limited availability—reserve up to 5 rare trees per order while supplies last

Each handpicked tree includes a durable etched metal display tag and will be shipped in a 6-foot box to ensure optimal growth

Dwarf on Citation Rootstock

The Sidonie Plum tree is a fascinating and historically significant fruit tree that traces its roots back to the 19th century, nurtured by the pioneering horticulturist Felix Gillet. This plum variety, with its medium-sized amber flesh and sweet, delicious flavor, has been cherished for generations. The Sidonie Plum tree, named after Sido, who grew up on an old homestead filled with Gillet's fruit and nut trees, stands out as a beloved cultivar. Though the original grandmother tree fell in 2016 after over a century of life, efforts to preserve its genetics continue, ensuring that future generations can enjoy this remarkable fruit. 

Historical Significance

The Sidonie Plum tree is more than just a fruit-bearing plant; it is a historical tree that connects us to the agricultural heritage of the American West. Felix Gillet, a French-born horticulturist who settled in Nevada City, California, in the mid-1800s, played a crucial role in introducing many fruit and nut varieties to the region. His work in establishing orchards and nurseries helped lay the foundation for the fruit-growing industry in California and beyond.

Gillet's legacy lives on through the trees he propagated, many of which continue to bear fruit today. The Sidonie Plum tree is one such example, a living relic of the past that has been passed down through generations. The grandmother tree, which stood in Camptonville, Yuba County, for over 110 years, was part of a mixed orchard on a homestead established during the Gold Rush era. This tree, along with others in the area, serves as a reminder of the vibrant agricultural history of the region and the enduring impact of Felix Gillet's work.

How to Grow a Sidonie Plum Tree

Growing a Sidonie Plum tree requires an understanding of its specific needs, including climate, soil, watering, and pruning. By providing the right conditions and care, you can cultivate a healthy and productive tree that will bear delicious fruit for years to come.

• Climate and Location: Sidonie Plum trees thrive in temperate climates with cold winters and warm summers. They require at least 700 chilling hours (exposure to temperatures below 45°F) during the winter to break dormancy and promote fruiting. This makes them well-suited to regions with distinct seasons, such as the northern parts of California where the original Sidonie Plum tree was grown. When selecting a location for planting, choose a site that receives full sun, as this will help the tree produce the best quality fruit.
• Soil Requirements: The Sidonie Plum tree prefers well-drained, fertile soils with a pH level between 6.0 and 7.5. While it can tolerate a range of soil types, from sandy loam to clay, good drainage is essential to prevent root rot and other moisture-related issues. Before planting, it's beneficial to amend the soil with organic matter, such as compost, to improve its structure and fertility. This will provide the tree with the nutrients it needs to establish strong roots and grow vigorously.
• Planting: When planting a Sidonie Plum tree, dig a hole that is twice as wide and just as deep as the tree's root ball. Place the tree in the hole, ensuring that the graft union (where the rootstock meets the scion) is above the soil line. Fill the hole with soil, gently firming it around the roots to eliminate air pockets. After planting, water the tree thoroughly to help settle the soil and provide moisture to the roots.
• Watering: Consistent watering is crucial, especially during the tree's first few years of growth. Keep the soil evenly moist but not waterlogged. A deep watering once a week is generally sufficient, although more frequent watering may be necessary during hot, dry periods. Mulching around the base of the tree can help retain soil moisture and reduce the frequency of watering.
• Pruning: Pruning is an essential practice for maintaining the health and productivity of a Sidonie Plum tree. Prune the tree during its dormant season, typically in late winter, to remove dead, diseased, or crossing branches. This improves air circulation within the canopy, reducing the risk of fungal diseases. Pruning also helps shape the tree and encourages the growth of strong, fruit-bearing branches.

Fruit Production

The Sidonie Plum tree is known for its reliable fruit production, yielding medium-sized plums with amber flesh that are sweet and delicious. The tree typically begins bearing fruit within 3 to 5 years of planting, with full production occurring once the tree reaches maturity.

• Pollination: While Sidonie Plum trees are considered self-fruitful, meaning they can produce fruit without a pollination partner, they will yield a more abundant harvest if another plum variety is planted nearby. Cross-pollination with a different plum tree can enhance fruit set and quality, making it a wise choice to plant a companion plum tree if space allows.
• Thinning: Once the tree begins to set fruit, it may produce more plums than it can adequately support. Thinning the fruit, or selectively removing some of the young plums, can help the remaining fruit grow larger and more flavorful. Thin the fruit when it is about the size of a marble, leaving about 4 to 6 inches of space between each plum. This practice reduces competition for nutrients and energy, resulting in higher-quality fruit.
• Fertilization: Regular fertilization supports the tree's growth and fruit production. Apply a balanced fertilizer in early spring, just as new growth begins, to provide the tree with essential nutrients. Additional feedings can be made throughout the growing season, particularly if the tree shows signs of nutrient deficiency. However, avoid excessive nitrogen, as this can lead to excessive vegetative growth at the expense of fruit production.

Harvesting Plums

Harvesting plums at the right time ensures that they have reached their full flavor and sweetness. The Sidonie Plum typically ripens in late summer, with the exact timing depending on local climate conditions.

• Harvest Timing: To determine if a plum is ready to harvest, gently press the fruit with your thumb. A ripe plum will yield slightly to pressure and will have a sweet fragrance. The fruit should also easily detach from the branch with a slight twist. It's best to harvest plums in the morning when temperatures are cooler, as this helps preserve their flavor and firmness.
• Post-Harvest Care: After harvesting, plums can be enjoyed fresh or preserved for later use. If you have a large harvest, consider canning, drying, or freezing the plums to enjoy their flavor throughout the year. Proper storage is key to maintaining the quality of the fruit. Store fresh plums in a cool, dry place or refrigerate them to extend their shelf life. When handled and stored correctly, plums can be kept for several weeks, allowing you to savor their sweetness long after the harvest season has ended.

Conclusion

The Sidonie Plum tree, with its historical significance and delicious fruit, is a valuable addition to any orchard. By following the guidelines for planting, care, and harvesting, you can enjoy the sweet rewards of this exceptional plum variety. Whether you're growing the tree for its connection to Felix Gillet and the agricultural heritage of the American West or simply for its delectable fruit, the Sidonie Plum tree offers a unique and fulfilling gardening experience. As efforts continue to preserve the genetics of this historical tree, the Sidonie Plum will remain a cherished part of our horticultural legacy, providing sweetness and flavor for generations to come.