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Grow Cilantro in the Warm Tropics

Cilantro is a savory aromatic herb that is commonly used to spice up a lot of Asian or Mexican dishes. I use chopped cilantro herbs for sauteed vegetables, Asian salads,  steamed seafood and home-made tacos.  Its seeds,  known as coriander,  can also be used for seasoning, and they are just as flavorful as the leaves. In the Philippines,  the herb is typically grown in the uplands where the weather is cooler.  In Metro Manila where I live, the  climate is generally hot and humid, so growing cilantro here has been quite a challenge. After several failed attempts, I have finally been successful in growing this herb in my urban garden.


Here is how I did it.

Choose the right seeds

grow cilantro tropics

Generally, cilantro grows best in cool weather conditions. During summer, if the weather is extremely hot, the seeds may not germinate, or the plant itself will bolt prematurely.  Bolting means that it produces flowers and seeds, which signals the end of its life cycle.  Fortunately, local seed producers in the Philippines have developed slow-bolting cultivars  that adapt well in our warm weather here.  In growing cilantro therefore, it is important to source the seeds from reputable growers or seed producers who have tested and developed seed varieties that are suitable for local growing conditions.

Start from Seeds

grow cilantro Philippines

For greater chances of success, it is better to start from seeds rather than buy a seedling from a garden store.  This is because the cilantro is quite sensitive to changes in its environment. Typically, garden-bought seedlings were started in more controlled environments, like  in a greenhouse-type of setting,  These seedlings may find it difficult to thrive when suddenly exposed to harsher conditions outside.

To start from seeds, sow the seeds directly into a medium sized container.  Place the container where it is exposed to limited morning sunlight. In about 10 days, the seeds will start to germinate.  To prevent seedling shock, allow the seedlings to harden by gradually exposing them to outside elements.

Like most leafy herbs, cilantro does not occupy too much space and is therefore ideal for container gardening. A medium-sized pot of around 6 – 8 inches in depth and diameter is sufficient to grow cilantro plants. Make sure not to overcrowd the pot.  Thin out the weaker seedlings and allow some 2 inches of  gap in between each plant.

Plant Maintenance

About three weeks after the seeds have germinated,  fertilize the soil by mixing in some organic compost material into the soil.  Make sure the soil is always moist (not soggy), and water the plants regularly.   When using pots,  make sure that excess water drains out of the pot properly.  If available,  use rice hull or any organic mulch to slow down water evaporation, especially during summer.

Cilantro needs only a few hours of sun in the morning.  An average of  four hours of sunlight is  sufficient, ideally in the morning.  During summer,  move the pot to a shady part of the garden.

How to harvest

To ensure a regular harvest,  sow the seeds in batches.  Under the right weather and soil conditions,  the plants will be ready for harvest in about 8 weeks. To harvest, cut mature leafy stems starting with the outermost ones.  For continued harvests, do not cut more than 50% of the stems per round.

Cilantro is an annual, which means it will not live longer than one year.  After a few harvests, some will likely bolt or produce flowers (or simply wither or dry out completely). You can harvest coriander seeds for consumption or for the next growing cycle.

Tags: Herbs

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