Comprehensive Guide to Calamansi Growing Stages (Life Cycle)

Calamansi (Citrofortunella microcarpa), also known as calamondin or Philippine lime, is a small citrus fruit native to the Philippines. Known for its sour taste and aromatic flavor, calamansi is often used in culinary applications, beverages, and even medicinal remedies. The journey from a small calamansi seed to a full-grown tree laden with fruits involves several critical stages. Understanding these stages can help you grow a healthy calamansi plant.

This article delves into the various calamansi growing stages, offering insights into germination, vegetative growth, flowering, fruit setting, and maturation. Get the lowdown on how to successfully navigate through each stage for a bountiful harvest.

Germination Stage

The journey of a calamansi plant starts with the germination stage, where a seed sprouts to form a seedling. Germination usually takes between 2 to 3 weeks. The key to successful germination lies in providing the right conditions: moisture, warmth, and a well-draining soil mix. It’s essential to keep the soil moist but not waterlogged.

Using a seed tray or a small pot can help you better control these conditions. Place the seed about half an inch deep into the soil and keep it in a warm area with a temperature range of 70-85°F (21-29°C). Once the seed sprouts, make sure it receives adequate light for healthy growth.

You’ll know the germination stage is complete when the seedling develops its first set of true leaves, distinct from the initial embryonic leaves that appear as the seed sprouts.

Seedling Stage

Once the seed has germinated, the plant enters the seedling stage. During this period, the young plant develops additional leaves and starts to resemble a small tree. It’s crucial to maintain optimal conditions like sufficient sunlight, moderate watering, and a balanced fertilizer application to encourage healthy growth.

The seedling will need to be transplanted into a bigger pot or directly into the ground as it grows. Make sure the new location has well-drained soil rich in organic matter. The seedling stage is critical for root development, so ensure that the soil remains moist but not saturated to promote strong root growth.

This stage can last up to 6 months or more, and it’s imperative to protect the young plant from extreme weather conditions, pests, and diseases. It sets the foundation for the following calamansi growing stages.

Vegetative Growth Stage

The vegetative stage follows the seedling phase and involves rapid growth of the plant in terms of height and foliage. During this stage, the plant is focusing on creating a strong structure to support future fruits. Regular watering and balanced fertilization are key to successful vegetative growth.

It’s a good idea to periodically prune the plant to remove any dead or diseased branches and leaves. Pruning encourages better air circulation and light penetration, leading to a healthier plant. You may also want to stake the plant if it starts to grow too tall to maintain its structure.

The vegetative growth stage is crucial for setting up the plant’s overall health and potential yield. Expect this stage to last up to a year or more, depending on the growing conditions.

Branching Out

In this stage, the calamansi plant starts developing multiple branches that will later hold the flowers and fruits. The structure becomes more complex, and the canopy thickens. This stage often overlaps with the late vegetative growth stage, where the plant is still growing in height and width.

Pruning continues to be essential in this stage for shaping the tree and improving air circulation. Focus on removing branches that are too close together or those that are growing inward.

Regular feeding and watering are vital at this point, but over-fertilization should be avoided. Too much nitrogen can lead to excessive leaf growth at the expense of flowering and fruiting in subsequent calamansi growing stages.

Pre-Flowering Stage

Before the plant starts to flower, it goes through a pre-flowering stage. This is a transitional phase where the plant prepares for the reproductive phase of its life cycle. You may notice that growth in height and foliage starts to slow down, as the plant conserves energy for flowering.

During the pre-flowering stage, it’s crucial to adjust the fertilization schedule to include more phosphorous and potassium, which are essential for bud formation and flowering. Watering should be consistent, but avoid overwatering as it may lead to root rot.

By the end of this stage, you’ll start to see small buds forming on the branches, signaling that the plant is ready to enter the flowering stage.

Flowering Stage

The flowering stage is a significant milestone in the calamansi growing stages. The buds burst open to reveal small, fragrant white flowers. These flowers are the precursors to the calamansi fruits, so their health and abundance are vital for a good yield.

Continue with a balanced fertilization regimen, but make sure not to overfeed the plant as it may lead to a drop in flower production. Irrigation should be well-managed to avoid water stress, which can also affect flowering negatively.

This stage is also a critical time for pest and disease management. Aphids, spider mites, and other pests can harm the delicate flowers, so regular inspections and appropriate treatments are necessary.


Pollination usually occurs naturally, especially if the plant is outdoors and can attract pollinators like bees. In indoor settings or areas with fewer natural pollinators, you may need to assist in the pollination process manually using a small brush to transfer pollen from one flower to another.

Once pollination is successful, the flowers will start to wither and fall off, leaving behind a small, green fruit. This marks the beginning of the fruit-setting stage, which is critical for determining the number of fruits the plant will produce.

Ensure that the plant receives adequate water and nutrients during this period. Stress from lack of these essentials can lead to poor fruit setting or even fruit drop.

Fruit Setting Stage

After successful pollination, the plant enters the fruit-setting stage. Tiny green fruits will start to appear where the flowers were once present. This is a critical stage in terms of nutritional needs, as the developing fruits require a lot of energy and nutrients.

At this point, a well-balanced fertilizer rich in potassium and phosphorus will support fruit development. Watering remains crucial, and it’s advisable to keep the soil consistently moist but not waterlogged.

Monitoring for pests and diseases is essential at this stage, as they can severely affect the quality and quantity of the fruits.

Fruit Development Stage

This stage sees the small green fruits grow in size and slowly start to change color, usually turning from green to a yellow-orange hue. The fruits are filling with juice and the flavors are developing. This is the final stretch in the calamansi growing stages before harvesting.

Regular watering and nutrient application continue to be vital. However, it’s also important to cut back on nitrogen-focused fertilizers, as they can encourage leafy growth at the expense of fruit maturity.

It’s crucial to monitor for any signs of disease or pests, as they can still affect the fruit quality. Some common pests that affect calamansi at this stage are citrus psyllids and fruit flies.

Harvesting and Post-Harvest Stage

The fruits are ready for harvest when they have reached their full color, which is usually a bright orange-yellow. The skin should feel slightly soft to the touch, and the fruit should give off its characteristic fragrant smell.

Once harvested, the calamansi fruits can be used immediately or stored for later use. If you plan on storing them, it’s best to leave them unpeeled and store them in a cool, dry place or in the refrigerator.

The post-harvest stage also includes maintenance activities for the calamansi tree, such as pruning and fertilization, to prepare it for the next growing cycle.


Understanding the calamansi growing stages is crucial for anyone interested in cultivating this sour yet incredibly versatile fruit. Each stage has its own set of requirements and challenges, but with proper care, you can look forward to a healthy plant and a fruitful harvest. Whether you’re a beginner or an experienced gardener, keeping track of these stages can guide you in providing the optimum conditions for your calamansi plant to thrive.