An Introduction to Tamarillos and How to Make Jam With Them

Updated on January 7, 2020
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Lady Rain works as a daytime stock trader and writes about crafts and hobbies. She likes travelling and making papercraft models.

Red and Yellow Tamarillos.
Red and Yellow Tamarillos. | Source

The Tamarillo Tree

Tamarillos are native to South and Central America. The tamarillo is also known as tree tomato probably because it resembles a red egg-shaped tomato. It also has a yellow or orange-colored variety that tastes a lot sweeter than the red. The tamarillo tree is fast growing and will bear fruits in 18 months. It grows up to around two metres in height and has a lifespan of around seven years. Though some trees do grow up to fifteen years, they will start losing leaves more often than growing them after seven years. They may still produce some fruits but are not as prolific as before. The trunk of the tamarillo tree is rather soft and can be pruned quite easily. The branches tend to bend and droop when they are laden with fruits. During the fruiting season, the weight of the fruits will cause the branches to break if the branches are not provided with some support.

The leaves are big (about 20cm in length), heart-shaped and covered with tiny hairs. The tree grows well in well-drained soil that is rich and moist. Lack of water will stunt the plant and kill it. Small pink flowers start to form in spring and early summer. They develop into fruits in a few weeks, and the fruits begin to grow until autumn or winter. Overall, the tree can tolerate some frosts, but the leaves will turn black and limp if they are exposed to very cold temperatures for a long period of time.

Growing Tamarillos

Tamarillos can be easily propagated by cuttings and seeds. The branch cuttings are propagated by dipping one end of the branches into rooting hormone before planting them in moist soil. Seeds are germinated by burying them in well-drained soil in small pots. Once propagated, the cuttings or seedlings will grow quickly when they are given a dose of liquid fertilizer every two weeks. The seedlings can be planted in the ground when they are strong enough, and they will bear fruits in less than two years. Not only that, you will get buckets of fruits that will probably take months to consume. Freshly harvested fruits can be kept at room temperature for a couple of weeks. They can also stay fresh in the refrigerator for a few weeks.

Tamarillo Fruits

Even though tamarillos are becoming more popular in the markets when they are in season, these exotic fruits are still unknown to a lot of people who are not so keen to try them. At the cost of around two dollars per fruit, most people would rather buy two kilos of pre-packed oranges for two dollars.

The tamarillo fruit is oval in shape and measures up to 8cm long and 6cm wide. It looks very appealing with smooth and shiny skin on the outside. The fruit is rich in vitamins, minerals, fiber and antioxidants. It is very low in calories. Like most fruits, it can be eaten after harvesting. The outer part of the fruit is bitter, so the skin is not to be eaten. The tamarillo can be cut in half, and the flesh scooped out with a spoon, it is just like eating kiwi fruit. The color of the flesh inside is similar to the color of the skin. There are some small seeds inside, and they can be eaten as well. The flesh is juicy and has an acquired taste, some people prefer to eat tamarillos with a dash of sugar.

Tamarillos can be used in cooking, baking, salads, desserts or made into jam or sauce. Tamarillo sauce tastes almost like tomato sauce because of the tartness, but tamarillos are tastier in flavour.

The pictures below are my tamarillo trees. The red tamarillo was grown from a cutting while the yellow was grown from seeds. Both grew well and started producing fruits in their second year. Red tamarillos are more prolific than yellow tamarillos, which explains why the red fruits are more common and easily available in the markets.

Click thumbnail to view full-size
Yellow tamarillos are hard to find.Tamarillos ripening on the tree.Tree-ripened tamarillo fruits ready to be eaten.Colored tamarillos. I prefer to eat the yellow variety because they are milder in taste and sweeter.
Yellow tamarillos are hard to find.
Yellow tamarillos are hard to find. | Source
Tamarillos ripening on the tree.
Tamarillos ripening on the tree. | Source
Tree-ripened tamarillo fruits ready to be eaten.
Tree-ripened tamarillo fruits ready to be eaten. | Source
Colored tamarillos. I prefer to eat the yellow variety because they are milder in taste and sweeter.
Colored tamarillos. I prefer to eat the yellow variety because they are milder in taste and sweeter. | Source

How to Make Tamarillo Jam

If you get a bountiful harvest of tamarillos, the fruits can be cooked and stored for later use. Tamarillo jam is delicious and nutritious. The natural citric acids in the fruit itself act as preservatives, and the jam can be stored in sterilized glass jars for a long time.

Cook Time

Prep time: 10 min
Cook time: 1 hour 30 min
Ready in: 1 hour 40 min
Yields: Several jars of tamarillo jam

Ingredients Required:

  • 2½ kg tamarillos
  • 2 kg sugar
  • 1 cup water
  • 2 tablespoons butter
  • Juice of one lemon
  • Clean sterilised bottles


  1. Scoop out the flesh of the tamarillos with a spoon. Discard the skin as it is bitter and not edible. Chop the tamarillos finely.
  2. Place the tamarillos in a pot with the lemon juice and water.
  3. Bring the mixture to a boil and simmer until the fruit is soft.
  4. Lower the heat and add in sugar and stir until the sugar dissolve. Next, add in the butter and stir until the butter melts. Increase the heat and continue to cook the jam until it boils.
  5. Lower the heat a little and continue cooking. Keep stirring to prevent the jam from sticking to the bottom of the pot. The cooking should take more than 30 minutes.
  6. The mixture should start to thicken. Check the consistency of the jam and stop cooking when you are happy with the thickness.
  7. Pour the jam into the clean bottles and seal. Store in a dark, cool place.

To serve, spread generously on toasts, muffins or crackers.

Please rate this recipe

3.5 stars from 27 ratings of Tamarillo Jam Recipe
Tamarillo Jam.
Tamarillo Jam. | Source

Tamarillo Nutrition Facts

Nutrition Facts
Serving size: 100g
Calories 31
Calories from Fat0
% Daily Value *
Fat 0 g
Carbohydrates 4 g1%
Fiber 3 g12%
Protein 2 g4%
Cholesterol 0 mg
Sodium 1 mg
* The Percent Daily Values are based on a 2,000 calorie diet, so your values may change depending on your calorie needs. The values here may not be 100% accurate because the recipes have not been professionally evaluated nor have they been evaluated by the U.S. FDA.

Questions & Answers

  • Should you remove the seeds from the tamarillos before making the jam?

    The seeds are edible so I include them in the jam too!

  • Why the butter in the tamarillo jam? I would've thought that would reduce its storage life.

    The butter adds flavor to the tamarillo jam. You can omit the butter according to your preference.

  • Do you pack the tamarillo jam together with seeds?

    Yes, I use the seeds in the jam, but if you don't want the seeds you can remove them.

  • How do you know when tamarillos are ripe?

    Tamarillo can be left at room temperature to ripen. They will feel soft when they are ripe.

© 2011 lady rain


Submit a Comment
  • naturegirl7 profile image

    Yvonne L. B. 

    9 years ago from South Louisiana

    I've been curious about tamarillos. Now I have a reason to try to grow them. Interesting and useful hub.


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