How to Grow an Australian Finger Lime Tree

How to Grow an Australian Finger Lime Tree

4 minute read

Have you been wondering how to grow an Australian Finger Lime tree? The Australian finger lime tree (Citrus australasica), also known as the "citrus caviar," is a unique and exotic citrus fruit tree native to Australia. It produces elongated fruits that contain small, bead-like juice vesicles resembling caviar. These vesicles burst with a tangy and flavorful citrus taste, making the fruit a popular choice for culinary uses, garnishes, and cocktails.


Caring for an Australian finger lime tree in a container requires attention to specific growing conditions to ensure the tree's health and fruit production. Because they are grafted onto semi-dwarf rootstock, they will stay small and compact with yearly pruning. This is a good thing, because Australian Finger Limes have a tendency to be bushy and thorny. Here are the basic care guidelines on how to grow an Australian Finger Lime tree in a pot:


Container Selection: Choose a container with good drainage holes. A starter pot that's at least 10-14” inches in diameter and depth should provide sufficient space for the tree's roots to grow. 


Planting in the ground: For in-ground planting, plant the tree in a prepared area about 3x the diameter of the pot, and as deep as possible. That soil should be well-draining and loose, allowing for root growth. Plant your tree at the same depth as the pot, keeping the crown of the roots just above the soil line. Water thoroughly after planting.



Soil: Use a well-draining, chunky soil mix like our DIY Primo Potting mix. This orchid bark-based mix provides the drainage that you need for citrus trees. 


Sunlight: Australian finger lime trees thrive in full sun. Place the pot in a location where it receives at least 6-8 hours of direct sunlight daily. 


Watering: Water the tree consistently but avoid overwatering. Allow the top inch of the soil to dry out before watering again. Ensure that the pot has good drainage to prevent water logging, which can lead to root rot. (Click here to read about deep watering vs. overwatering)


Fertilization: Feed the tree with a balanced, slow-release fertilizer, such as Romeo or G&B Organics Citrus and Fruit Tree Fertilizer during the growing season (spring and summer). Follow the manufacturer's instructions for application rates. Reduce or stop fertilizing during the dormant season (fall and winter).


Pruning: Regularly prune the tree to maintain its shape and remove dead or diseased branches. Pruning can also encourage better air circulation and fruit production. (Click here to read about pruning your citrus trees)


Temperature and Humidity: Australian finger lime trees prefer warm temperatures and are sensitive to frost. If you're in a colder climate, consider bringing the potted tree indoors during the winter months. They also appreciate higher humidity levels, so using a humidity tray or humidifier can help if you're in a dry climate.


Pest and Disease Control: Keep an eye out for common citrus pests like aphids, mealybugs, and scale insects. Regularly inspect the tree's leaves and stems for signs of infestation. Use organic or chemical treatments as needed, such as Captain Jack’s Insecticidal Super Soap or Mite X.


Pollination: Australian finger lime trees are self-pollinating, so they don't require cross-pollination by insects or wind.


Support and Staking: As the tree grows, it might need support to keep its shape and prevent breakage. Use the stake provided for the first couple of seasons to help support your tree.


Remember that container-grown plants may have slightly different care requirements compared to those grown in the ground, so it's essential to monitor your tree's health and adjust care practices accordingly. With proper care, your Australian finger lime tree can provide you with delicious and unique citrus fruits to enjoy in your culinary creations. How t

Australian Finger Lime Semi-Dwarf Tree

Australian Finger Lime Semi-Dwarf Tree


--OVERVIEW-- The Australian Finger Lime is also known as "Citrus Caviar". The Australian Finger Lime tree is a relative of citrus and produces finger-like fruit with tart, round, juicy lime vesicles.  Prized by chefs worldwide, the Australian Finger Lime makes… read more

o grow an australian finger lime tree

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