When To Harvest Kumquats: A Comprehensive Guide

Discover the perfect time to harvest kumquats for the best flavor and nutrition. Learn valuable tips from experts in this comprehensive guide.

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Kumquats are delightful citrus fruits that can be enjoyed fresh, in salads, or used to make delicious preserves. But to savor their unique flavor and maximize their nutritional benefits, it’s essential to know when to harvest them. In this in-depth guide, we’ll explore everything you need to know about the art of harvesting kumquats.

When To Harvest Kumquats – The Key to Flavor

When To Harvest Kumquats

Kumquats are known for their sweet and tangy flavor, and knowing when to pick them ensures that you enjoy their optimal taste. Harvesting kumquats at the right time is crucial for a delightful culinary experience.

Identifying Kumquat Varieties

Identifying kumquat varieties is a fundamental aspect of successful harvesting. Two of the most common kumquat varieties are the Nagami kumquat and the Marumi kumquat. Each variety has unique characteristics that distinguish them:

1. Nagami Kumquat (Fortunella margarita)

Size: Nagami kumquats are typically larger than Marumi kumquats, with an oblong or oval shape. They typically measure about 1 to 2 inches (2.5 to 5 cm) in length.

Color: When ripe, Nagami kumquats have a bright, glossy orange skin. The skin is slightly wrinkled and may have a few small seeds inside.

Taste: Nagami kumquats have a sweet-tart flavor profile. The flesh is tart, while the skin is sweeter. Eating them whole provides a delightful contrast of flavors.

Harvest Time: Nagami kumquats are generally harvested in late fall to early winter. They are one of the most common kumquat varieties found in markets.

2. Marumi Kumquat (Fortunella japonica)

Size: Marumi kumquats are smaller and rounder than Nagami kumquats. They typically measure around 1 inch (2.5 cm) in diameter.

Color: When ripe, Marumi kumquats also have an orange skin, but it tends to be slightly more yellowish-orange compared to Nagami kumquats. The skin is smoother and thinner.

Taste: Marumi kumquats have a similar sweet-tart flavor but are generally considered sweeter than Nagami kumquats. The skin is milder in taste.

Harvest Time: Marumi kumquats are typically harvested during the same season as Nagami kumquats, in late fall to early winter. They may ripen slightly earlier in some cases.

Other Kumquat Varieties

Apart from Nagami and Marumi, there are other kumquat varieties, such as the Calamondin kumquat. Calamondin kumquats are smaller and rounder than both Nagami and Marumi kumquats and are often used for ornamental purposes or in culinary applications.

Understanding the differences between these kumquat varieties is essential for choosing the right time to harvest, as the ideal harvest window can vary depending on the specific type of kumquat tree you have. By identifying the variety you are growing, you can tailor your harvesting schedule to ensure you pick the fruits at their peak ripeness and flavor.

The Perfect Timing

The best time to harvest kumquats is when they reach full ripeness. Look for the following signs:

  • Vibrant orange color: Kumquats should have a deep orange hue, indicating they are ripe and sweet.
  • Slight softness: Gently press the fruit; it should yield slightly, but not too much.
  • Fragrant aroma: Ripe kumquats emit a sweet, citrusy scent.

Harvesting Kumquats – Step by Step

When To Harvest Kumquats

Harvesting kumquats is a straightforward process, but it requires a gentle touch to avoid damaging the fruit.

Step 1: Gather Your Tools

Before you begin, gather the following tools:

  • Pruning shears or scissors
  • A basket or container
  • Soft cloth or gloves (optional)

Step 2: Inspect the Kumquats

Inspecting kumquats on the tree is a crucial step to ensure you harvest them at their peak ripeness. Here’s how to do it:

  • Check for Vibrant Color: Examine the kumquats closely for their color. Ripe kumquats should be a vibrant orange or orange-yellow, depending on the variety. Avoid harvesting green or mostly green fruits as they are likely underripe.
  • Assess Texture: Gently squeeze the kumquats with your fingers. Ripe kumquats should yield slightly to pressure, similar to ripe berries. If they feel hard or excessively firm, they are not yet ripe. The skin should feel pliable but not mushy.
  • Smell the Aroma: Bring the kumquat close to your nose and take a deep breath. A ripe kumquat should emit a delightful, citrusy aroma. If it lacks a pronounced scent, it may not be fully ripe.
  • Inspect the Skin: Ensure that the skin is smooth and free from blemishes or mold. Minor imperfections are acceptable, but avoid fruits with significant damage or signs of rot.
  • Check for Uniformity: Harvest kumquats that have a uniform color and size. This ensures even ripening and consistency in flavor.
  • Leave Unripe Fruits: If you find kumquats that don’t meet these criteria, leave them on the tree to continue ripening. They will likely be ready for harvest in a few more days or weeks.

Step 3: Snip the Kumquats

Snipping the kumquats from the tree is the next step in the harvesting process. Here’s how to do it properly:

  • Prepare Your Tools: Before you begin, make sure you have sharp pruning shears or scissors. Dull blades can crush the fruit or damage the tree.
  • Select Ripe Kumquats: Refer to the criteria mentioned earlier for selecting ripe kumquats. Choose the ones that meet the desired color, texture, aroma, and overall quality.
  • Position Yourself: Stand or position yourself on a stable platform that allows you to reach the kumquats comfortably. This will help you avoid overstretching or damaging the tree.
  • Snip with Care: Approach each selected kumquat and use your pruning shears or scissors to snip it from the tree. Leave a small stem (about half an inch) attached to each fruit. The stem helps protect the fruit and allows for easier handling.
  • Be Gentle: Handle the kumquats with care as you snip them. Apply gentle pressure with the shears to avoid crushing or bruising the fruit. Damaged kumquats may not store as well or look as appealing.
  • Collect the Harvest: As you snip each kumquat, collect them in a container or basket. Be mindful not to overcrowd the container, as stacking them can lead to bruising.
  • Inspect Continuously: While harvesting, continue to inspect the fruits for ripeness. If you encounter any underripe kumquats, leave them on the tree to mature further.

Step 4: Collect the Harvest

Collecting the harvested kumquats is the final step in the process. Here’s how to do it while ensuring the fruit remains in optimal condition:

  • Use a Suitable Container: Choose a basket, crate, or container that is clean and free from any contaminants. A shallow container is ideal for kumquats to prevent them from stacking on top of each other.
  • Place Kumquats Gently: As you snip each kumquat from the tree, carefully place it in the container. Handle the fruit gently to prevent any bruising or damage. Ensure that the kumquats are not stacked too closely on top of each other.
  • Avoid Overfilling: Do not overfill the container. Leaving some space at the top helps prevent the kumquats from pressing against each other, which can cause bruising or skin damage. If you have a large harvest, consider using multiple containers.
  • Continue Inspecting: While collecting the harvest, continue to inspect the kumquats for ripeness and quality. If you encounter any that are underripe, leave them on the tree to mature further.
  • Handle with Care: When moving the container or transporting the harvested kumquats, do so with care to minimize jostling or shaking. This ensures the fruits maintain their freshness and appearance.
  • Store Properly: Once you have collected all the kumquats, store the container in a cool, dry place. If you plan to use the kumquats within a few days, you can leave them at room temperature. For longer storage, refrigerate them to extend their shelf life.

Step 5: Rinse and Enjoy

Once you’ve collected your kumquats, give them a gentle rinse under cool water, pat them dry, and they are ready to enjoy!

FAQs About Harvesting Kumquats

When To Harvest Kumquats

What Are Kumquats?

Kumquats are small, oval-shaped citrus fruits belonging to the genus Fortunella. They are unique among citrus fruits because you can eat the entire fruit, including the skin. Kumquats have a sweet and tart flavor, with the skin providing a pleasant contrast to the juicy interior.

2. When Is the Best Time to Harvest Kumquats?

The ideal time to harvest kumquats depends on various factors, including the specific variety of kumquat, climate, and personal taste preferences. Generally, you can follow these guidelines:

a. Kumquat Variety

Different kumquat varieties have different harvest times. Here are some common varieties and their typical harvest seasons:

  • Nagami Kumquats: These are the most common variety and are typically harvested from late fall to early winter.
  • Marumi Kumquats: Harvested during the same season as Nagami kumquats, they may ripen slightly earlier.
  • Calamondin Kumquats: These are usually harvested in late summer or early fall.

b. Climate

The local climate plays a significant role in determining the harvest time. In regions with colder winters, kumquats may take longer to ripen, often extending into winter.

c. Personal Taste

Your preference for the level of sweetness and tartness can also influence when you choose to harvest kumquats. Some people prefer slightly underripe kumquats for their tartness, while others prefer fully ripe, sweeter fruits.

3. How Do I Know When Kumquats Are Ripe?

Determining the ripeness of kumquats involves examining their color, texture, and taste:

a. Color

Ripe kumquats should be bright orange or orange-yellow, depending on the variety. Avoid harvesting green or predominantly green fruits, as they are likely underripe.

b. Texture

Gently squeeze the fruit. Ripe kumquats should have a slight give when you apply pressure, similar to ripe berries. If they feel hard, they are not yet ripe.

c. Taste

Taste is the most reliable indicator of ripeness. Pick one or two kumquats and sample them. They should be sweet and slightly tart. If they are too tart, give them more time to ripen on the tree.

4. Can I Harvest Kumquats Early and Ripen Them Off the Tree?

Yes, you can harvest kumquats slightly early and allow them to ripen indoors at room temperature. Place them in a bowl or on a countertop, away from direct sunlight. They should ripen within a few days to a week. However, the flavor might not be as developed as fully tree-ripened fruits.

5. Is It Better to Harvest Kumquats in the Morning or Evening?

Harvesting kumquats in the morning is generally recommended. At this time, the fruits are cooler, and the essential oils responsible for their flavor are more concentrated. Additionally, morning harvesting helps prevent sunburn on the fruits.

6. How Do I Harvest Kumquats?

Harvesting kumquats is a straightforward process:

a. Use Pruning Shears or Scissors

To avoid damaging the tree or the fruit, use sharp pruning shears or scissors. Snip the stem about half an inch above the fruit.

b. Handle with Care

Kumquats are delicate, so handle them gently to prevent bruising or skin damage.

c. Harvest with a Twist

For fruits that don’t easily come off the stem, give them a gentle twist to separate them from the branch.

7. What Should I Do with Harvested Kumquats?

Once you’ve harvested your kumquats, you have several options:

a. Fresh Consumption

Enjoy fresh kumquats as a snack, in salads, or as a garnish for various dishes. Remember to wash them thoroughly before eating.

b. Preserving

You can preserve kumquats by making marmalades, jams, or candying them. These preparations extend the fruit’s shelf life and provide a unique flavor for various culinary applications.

c. Freezing

Freeze kumquats by washing and drying them, removing the seeds if desired, and placing them in airtight containers or freezer bags. Frozen kumquats can be used in smoothies and desserts.

8. Can I Leave Kumquats on the Tree for Too Long?

Leaving kumquats on the tree for an extended period can result in overripening or spoilage. Kumquats are best when harvested at their peak ripeness. Overripe fruits may become mushy or develop off-flavors.

9. How Often Should I Harvest Kumquats?

Harvest frequency depends on the size of your kumquat tree and the number of fruits it produces. For smaller trees or trees with a limited yield, you can harvest once a week. Larger trees may require more frequent harvesting, especially during the peak harvest season.

10. Can I Harvest Kumquats from a Potted Kumquat Tree?

Yes, you can harvest kumquats from potted trees. The same guidelines for determining ripeness apply. Potted kumquat trees may require more attention to watering and nutrient management to ensure healthy fruit development.

11. What If I Miss the Ideal Harvest Time?

If you accidentally miss the ideal harvest window for your kumquats, don’t worry; there are still options:

a. Late Harvest

You can still pick kumquats that are slightly past their prime. While they may not be as sweet or flavorful as perfectly ripe fruits, they can be used in cooking, baking, or for making preserves.

b. Prune the Tree

To ensure better fruit production next season, consider pruning your kumquat tree after harvesting. Proper pruning can help maintain the tree’s health and encourage new growth for future harvests.

12. How Do I Store Harvested Kumquats?

Proper storage is crucial to maintain the freshness and flavor of your harvested kumquats:

a. Refrigeration

Store freshly harvested kumquats in the refrigerator. Place them in a perforated plastic bag or a container with ventilation holes to maintain humidity. This can extend their shelf life for several weeks.

b. Room Temperature

If you plan to consume your kumquats within a few days, you can leave them at room temperature. However, they will not last as long as refrigerated ones.

c. Freezing

To extend the shelf life even further, consider freezing kumquats. Wash, dry, and remove seeds if desired, then place them in airtight containers or freezer bags. Frozen kumquats can be stored for several months.

13. How Do I Care for My Kumquat Tree After Harvesting?

Taking care of your kumquat tree after harvesting ensures its health and readiness for the next growing season:

a. Pruning

Prune your tree to remove any dead or diseased branches, shape the tree, and encourage new growth. This is typically done during the dormant season, which is in late winter or early spring.

b. Fertilizing

Apply a balanced citrus fertilizer in the spring to provide essential nutrients for your kumquat tree’s growth. Follow the recommended application rates on the fertilizer package.

c. Watering

Continue to water your kumquat tree regularly, especially during dry periods. Adequate watering is essential for fruit development and overall tree health.

14. Can I Harvest Kumquats from Young Trees?

Young kumquat trees may produce fruit, but it’s essential to balance fruit production with the tree’s growth and development. Here are some tips for harvesting from young trees:

  • First-Year Trees: It’s best to remove any fruit that forms during the first year to allow the tree to establish strong roots and branches.
  • Second-Year Trees: In the second year, you can allow some fruit to develop, but not too much. Limiting the fruit load helps the tree focus on growth.

15. Are There Any Health Benefits to Eating Kumquats?

Yes, kumquats are a nutritious addition to your diet:

  • Vitamin C: Kumquats are rich in vitamin C, which boosts the immune system and supports skin health.
  • Fiber: The peel of kumquats is a good source of dietary fiber, aiding digestion and promoting a feeling of fullness.
  • Antioxidants: Kumquats contain antioxidants that help protect cells from damage caused by free radicals.

16. Can I Grow Kumquats Indoors?

Yes, you can grow kumquats indoors in containers. Choose a suitable dwarf or miniature kumquat variety, provide proper lighting (at least 6-8 hours of sunlight), and maintain consistent watering and fertilizing schedules. Indoor kumquat trees can produce fruit and make lovely ornamental additions to your home.


Harvesting kumquats at the right time is the key to unlocking their delicious flavor and nutritional benefits. Remember to look for the signs of ripeness, gather your tools, and handle the fruits gently. By following these guidelines, you’ll be enjoying the delightful taste of freshly harvested kumquats in no time.