How to Grow a Yuzu Tree for Delicious Citrus Fruit—Even in Cool Climates

If you've been out to a nice dinner or had a craft cocktail lately, you've likely seen yuzu on the menu. For the uninitiated, this citrus fruit looks similar to a lemon but has a more complex flavor profile—one often compared to a mix of lemon, tangerine, and grapefruit. Unlike other fruit trees, yuzu can survive cold temperatures, which adds to its appeal for growing in home gardens.

“What makes yuzu genuinely special in the citrus world is its cold hardiness,” says Brian Flood, CEO of Moon Valley Nurseries. “Mature, established trees can handle temperatures down to around 10 to 15 degrees Fahrenheit, which opens it up to growers who'd never attempt a lemon or lime.”

The entire fruit—from the juice to the rind—is incredibly useful in the kitchen and nearly impossible to source locally. Because of its sour taste, it's rarely eaten raw and is instead used to make cocktails, marinades, salad dressings, and desserts.

Although yuzu fruits are very difficult to find in the United States, you can enjoy your own abundant supply of this fruit by growing it at home. This winter-hardy citrus tree is native to China and can withstand temperatures down to about 20 degrees Fahrenheit, meaning it can grow outdoors year-round in zones 8 and up. Here's how to grow your own at home.

Step-by-Step Guide to Planting Yuzu

Plant yuzu in spring once the risk of frost has passed and the soil is warming. “Source a grafted tree from a good nursery,” Flood recommends. “Growing from seed is possible, but you're looking at a decade or more for fruit. A grafted tree gets you there much faster.” 

1. Pick a location: Choose a spot with full sun and good drainage.
2. Grab a shovel: Dig a hole about twice as wide as the root ball.
3. Place your tree: Plant your tree at the same depth it was in the container.
4. Backfill and water: Backfill the hole with soil, water deeply, and mulch around the base. 

Best Care Practices

Proper care is essential to ensure your yuzu tree thrives and eventually produces fruit. Once it gets established in the ground, your tree will grow without much care on your end, but it needs to be babied during the first year of growth.

• Sunlight: Yuzu needs at least eight hours of sunlight daily. "I have one that gets probably eight hours of sunlight per day, then some that get complete sun-up to sundown," says Zack Snipes, assistant program team leader of horticulture with Clemson Cooperative Extension Service. "They all do well, but I would say the more sun, the better."
• Water and soil: Watering depends on the soil type. You don't want your yuzu to dry out—but you don't want to cause waterlogging. "I water mine three days a week for 20- to 30-minute cycles," Snipes says. "But I have sandy soil that doesn't hold water well. If you've got yuzu in a container, you might need to water multiple times a day, depending on how hot it is." Generally, yuzu trees require well-draining soil with a pH between 5.8 and 6.5.
• Fertilizer: Snipes feeds his yuzu a few times between April and July. "I fertilize mine four times per year based on the diameter of the trunk, using a complete blend fertilizer that has micronutrients," he says. "I start around April 1, and my last application is around July 4. I don't want to fertilize them too late in the season because I like mine to be hardened off without any new growth going into the fall."
• Pollination: Yuzu is self-fertile, so there is no need for you to plant a second tree for cross-pollination. "I honestly wouldn't plant more than one," says Snipes.

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How to Prune a Yuzu Tree

Yuzu benefits from pruning in late winter to early spring. "Yuzu likes to grow vertically as opposed to something like a satsuma, that can stay dwarfed," Snipes says. It's a really tall, narrow tree with sharp thorns that can grow to 3 inches long or longer. Wear gloves to protect yourself when pruning, and be mindful of children or pets playing near your yuzu tree.

Snipes says to remove any competing leaders—multiple main stems growing near the trunk—to maintain a strong structure. He likes to prune his so there is a single bare trunk 3 to 4 feet high, with the canopy allowed to bush out above that point. "It wants to grow from the bottom, but I keep the lower branches trimmed off," he says. Finally, remove dead, diseased, or crossing branches when pruning to keep your tree healthy.

Container Adjustments

Container growing is a great option for yuzu, especially in colder climates where you want the ability to protect the tree through winter. Although yuzu plants are cold-hardy, they can't tolerate temperatures lower than 10 to 15 degrees Fahrenheit.

For long-term container growing, use a well-draining citrus mix, give it a large pot, and plan to water and fertilize more frequently than an in-ground tree. "The payoff is flexibility," Flood says. "You can move it, protect it, and still get beautiful fruit and that incredible aroma."

Overwintering

Overwintering simply means protecting your tree through the coldest months so it survives hard freezes and comes back strong in spring. Yuzu handles cold better than most citrus, but younger trees are more vulnerable.

"For mature in-ground trees in a protected spot in USDA zone 8 and warmer, heavy mulch around the root zone is usually enough," Flood says. "For container trees or younger trees pushing into colder zones, move them somewhere sheltered—an unheated garage or covered porch works great—once temperatures start consistently dropping toward freezing. You want the tree to go dormant, not freeze solid."

How to Harvest and Store

It takes a grafted yuzu tree about three to five years to produce fruit. “Yuzu is typically ready to harvest in fall and early winter,” Flood says. “You can pick it green for maximum aroma and tartness, or wait for it to turn fully yellow for a slightly milder flavor. Both are useful depending on what you're making.” 

Storage is easy. Refrigerate in a sealed bag, and fresh yuzu holds for a few weeks. “The juice freezes beautifully,” Flood says. “Squeeze a big batch and freeze in ice cube trays for year-round use. Once you have a steady supply, you'll find yourself reaching for it constantly.”

Common Pests and Diseases

Like most citrus, yuzu can be susceptible to pests and diseases. “The most serious concern is Asian citrus psyllid, which can carry citrus greening disease,” Flood says. “It's widespread in Florida and present in parts of California and Texas.” Snipes agrees, adding that in his area, yuzu trees infested with Asian citrus psyllid must be cut down to combat it.

Beyond that, aphids, scale, and spider mites are also common pests. These are typically manageable with horticultural oil or insecticidal soap if caught early.

Yuzu is also susceptible to fungal diseases, such as root rot. Fungal issues are typically the result of a drainage issue. Maintaining proper moisture and providing well-draining soil are essential to avoiding these diseases. Flood adds that you should always source your tree from a certified, reputable nursery to ensure it's coming home with you in optimal health.