Harlequin Strain


Caryophyllene, Myrcene, Pinene

Strain Type





> 78 in

Yield (oz/ft2)

3 – 6

Flowering Time

8 – 9 weeks

Harvest Month


Pack Size

3, 6, 12, 24


Premium Cultivars

Seed Type


Harlequin SeedsHarlequin seeds are a Sativa cannabis strain that produces dense buds with a variety of favorable growth traits.

The History of Harlequin Feminized Seeds

Harlequin Feminized seeds are a cross of Colombian Gold, Thai, Swiss, and an Indica known as Nepali. Its ultra-diverse origin makes this strain unique and popular around the world. This Sativa-dominant strain has reliable consistency, thanks to its three Sativa landraces.

How to Germinate Harlequin Feminized Seeds

Germinating Harlequin seeds is easier than you might think. There are different ways to germinate these feminized seeds, but Premium Cultivars recommends the paper towel method. This is because it is the most effective, easiest, and cost-effective method. The materials needed for the process are easy to find: paper towels, water, a plate, a pair of tweezers, and Harlequin seeds. Below are the guiding steps to germinate your feminized seeds.

  1. Collect everything you need for the process.
  2. Wet the paper towels by dipping them in water but wring out excess water, so they are dumped and not soaked.
  3. Put one paper towel on a plate and save the other for later use
  4. Lay the Harlequin seeds on a paper towel and ensure an inch distance between each seed.
  5. Use the other paper towel to cover the seeds and add water if necessary.
  6. Check for any standing water on the plate by gently lifting the paper towels
  7. Stash the plate in a warm, dark place like a cupboard for about one to three days.
  8. Regularly check on your seeds to ensure they do not dry out.
  9. After a taproot pops, carefully transplant the seed to a growing medium using a paper towel.

Why are Feminized Seeds Better than Regs?

Feminized seeds are the preferred option for growers seeking bud-producing crops. As it may be evident by the same, feminized seeds exclusively produce female plants and therefore pose no pollination risk. On the other hand, regular seeds are not gender-specific, meaning they can grow to either male or female plants. Feminized seeds are also ideal for novice growers because cultivating them is straightforward. These seeds are also available in various varieties known for their reliable and consistent genetics.

Growing Harlequin Feminized Seeds

Harlequin Feminized seeds call for mid-level cultivation skills. Due to its sensitivity, this cultivar requires specific conditions and stability to thrive. Outdoor conditions like plenty of sunshine, aerated organic soil, moderate humidity, and high temperatures are ideal for cultivating this tropical crop. These seeds can also thrive in controlled indoor setups, provided enough food and water to sustain their robust stature. Expect the plant to bloom within eight to nine weeks, after which they will be ready to harvest in mid-October.

Should I Grow Harlequin Feminized Seeds Indoors or Outdoors?

The best thing about Harlequin seeds is that you can grow them in an indoor or outdoor garden.

Growing Harlequin Feminized Seeds Indoors

These plants can quickly grow as tall as six feet when cultivated indoors, even with vertical restrictions. When producing these seeds indoors, consider using the screen or green technique to maximize light exposure and space usage.

Growing Harlequin Feminized Seeds Outdoors

This tropical plant delights in outdoor environments with plenty of sunshine, high temperatures, and moderate humidity. Harlequin seeds can grow as tall as eight feet when cultivated outdoors.

How Much do Harlequin Feminized Seeds Yield?

How to Get Better Yields from Harlequin Feminized Seeds

You can harvest up to 21 ounces of bud per square meter of your grow room, But outdoor cultivation results in higher yields of over 28 ounces per plant.

The Best Grow Medium for Harlequin Feminized Seeds

Harlequin seeds can do well in soil medium or a hydroponic setup. However, nutrient-rich and well-aerated soil is the best medium to grow your seeds.

The Best Climate for Harlequin Feminized Seeds

Mediterranean climates are best for cultivating Harlequin Feminized seeds.

Problems to Look Out For when Growing Harlequin Feminized Seeds

There are various plant problems to look for when growing Harlequin seeds. They include pests and bugs, diseases, white powdery mildew, and cannabis deficiencies. Issues like white powdery mildew can be difficult to identify, especially for beginners. It causes white spots on fan leaves but can look gray in immature plants.

You also want to watch out for root rot disease that attacks your plants’ roots. Knowing the symptoms of root rot in cannabis will help you establish when there is a problem.

When cannabis plants are deficient in a specific nutrient, their leaves may droop or develop yellow and brown patches. Examples of nutrient deficiencies in cannabis include calcium deficiency, zinc deficiency, and silicon deficiency.

How Difficult is it to Grow Harlequin Feminized Seeds?

Are Harlequin Feminized Seeds Suitable for Beginners?

Growing Harlequin seeds is relatively easy; growers need mid-level cultivation skills. Beginners should be in a position to grow these seeds comfortably.

The Best Grow Techniques for Harlequin Feminized Seeds

The Screen of Green

The screen of green technique or SCROG is ideal for growing your Harlequin seeds indoors where light and space are limited. For this growing practice, you use nets or ropes to spread out the branches of your plants.


Due to their dominant Sativa genetics, Harlequin Feminized seeds can grow tall. Topping allows you to control their vertical height and promote lateral growth. You can use this grow technique when cultivating your Harlequin seeds outdoors or indoors.

Low-stress training

Low-stress training involves steadily bending the stems of your cannabis plant, creating a canopy that is reasonably flat and even. This technique gives you control over the height and shape of your plants and can help increase yields.

Are there Similar Seeds to Harlequin Feminized Seeds or Sale Online?

Yes. Other seeds similar to Harlequin seeds include Obama Runtz Feminized, Chemdawg feminized, Blue Cheese Feminized, and Banana Kush Feminized.

Where can I Harlequin Feminized Seeds?

You can order Harlequin Feminized Seeds online at Premium Cultivars. We are a seed bank in the United States that sells the best cannabis seeds.

How do I Harlequin Feminized Seeds?

Buying Harlequin seeds is pretty simple. Log into our Premium Cultivars website and check if the seeds are in stock. Select the pack size of your choice and place your order. We have cannabis seeds in packs of 6, 12, and 24. Once you place your order, pay using your credit card. We ship across the United States and charge no delivery fees for orders above $100.

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