Everything You Wanted To Know About Blue Spice Basil

Blue Spice Basil is a highly prized herb used in cooking and medicine for centuries. Its delicate leaves and distinctive flavor make it a favorite among chefs and gardeners. This comprehensive guide will delve into everything you need to know about Blue Spice Basil, from its origins to its uses and growing techniques.

We will explore the history of this aromatic herb, its cultural significance, its nutritional benefits, and potential side effects. Whether you are a seasoned basil enthusiast or new to the world of herbs, this guide will provide all the information you need to appreciate and fully use Blue Spice Basil.

So sit back, relax, and prepare to become a Blue Spice Basil expert! 

What is Blue Spice Basil? 

Blue Spice Basil, also known as Ocimum basilic um ‘Blue Spice,’ is a variety of sweet basil native to tropical regions in Asia and Africa. It belongs to the Lamiaceae family, which includes other popular herbs such as mint, rosemary, and thyme.

This annual herb has small, tender leaves with a fragrant aroma and an intense sweet and spicy flavor. Its leaves are typically deep green with purple undertones, giving it a unique appearance. Blue Spice Basil can grow up to 40cm in height and does best in warm, sunny climates.

Aside from being used as a culinary herb, Blue Spice Basil has medicinal properties and is believed to have various health benefits. It contains essential oils and compounds such as eugenol, linalool, and methyl cinnamate, which give it its distinct flavor and aroma. These compounds also have anti-inflammatory and antioxidant properties that can help boost the immune system and improve overall health.

Blue spice basil

History and Origin of Blue Spice Basil

The origins of Blue Spice Basil can be traced back to India and other parts of Southeast Asia. It has been used in traditional medicine, cuisine, and religious practices for thousands of years. In Hinduism, basil is considered a sacred herb and is often associated with the god Vishnu.

During the 16th century, traders introduced Blue Spice Basil to Europe, where it became popular for its culinary and medicinal uses. It was also commonly used in perfumes and potpourris because of its delightful fragrance.

Today, Blue Spice Basil is widely cultivated in many countries worldwide, including the United States, Italy, France, and Egypt. Its popularity grows as more people discover its unique flavor and health benefits.

Physical Description of Blue Spice Basil

Blue Spice Basil has a unique physical appearance sets it apart from other basil varieties. Its leaves are broad and slightly elongated, with deep green coloration and hints of purple undertones. The leaves are also wrinkled or crinkled, giving them a textured look.

The plant can grow up to 40cm in height and produce small white flowers that bloom in the summer. These flowers are aesthetically pleasing and attract pollinators such as bees and butterflies to the plant.

One of the most distinguishing features of Blue Spice Basil is its strong, spicy scent. When crushed or bruised, the leaves release an intense aroma often described as combining clove and cinnamon with hints of mint.

Flavor Profile of Blue Spice Basil

In addition to its unique physical appearance, Blue Spice Basil has a distinct flavor profile that sets it apart from other basil varieties. It is known for its intense spiciness and savory taste, making it a popular herb in many cuisines worldwide.

The strong spicy notes of Blue Spice Basil make it a great addition to dishes that require a bold flavor, such as soups, stews, and curries. Its flavor is also well-suited for marinades and dressings, adding depth to any dish.

Despite its spiciness, Blue Spice Basil maintains a hint of sweetness that balances the overall flavor profile. This makes it a versatile herb used in savory and sweet dishes.

Health Benefits of Blue Spice Basil

In addition to its culinary uses, Blue Spice Basil offers various health benefits. It is rich in essential vitamins and minerals such as vitamin K, iron, and calcium. Blue Spice Basil also contains powerful antioxidants that help protect the body against free radicals and oxidative stress. It is also believed to have antibacterial and antifungal properties.

Seasonality and Availability Throughout the Year of Blue Spice Basil

Blue Spice Basil is a warm-weather herb that thrives in full sun and well-drained soil. It can be grown in gardens or containers, making it easily accessible for home cooks.

The best time to plant Blue Spice Basil is in the spring when the weather starts to warm up. This will ensure the plant has enough time to establish itself before the hot summer months. It can also be planted in the fall but may only reach its full size after the first frost.

Blue Spice Basil is generally available year-round, especially in areas with mild winters. However, its peak season is from late spring to early fall, when it is freshest and most flavorful. It can be found at farmers’ markets and grocery stores during this time.

In colder regions, Blue Spice Basil may not survive the winter outdoors. In this case, it can be grown indoors in a sunny spot or harvested and preserved for later use. Drying and freezing are common methods of preserving Blue Spice Basil’s flavor for use throughout the year.

Cultivation of the Year of Blue Spice Basil

Blue Spice Basil is an easy herb to grow, making it a popular choice among home gardeners. It can be grown from seeds, cuttings, or transplants, and with the right care and conditions, it can thrive in various environments.

Soil Requirements

Preparing the right soil is the first step in successful Blue Spice Basil cultivation. This herb prefers well-drained, fertile soil with a pH range of 6.0-7.5. If the soil is too acidic, it can be amended with lime to raise the pH level.


Blue Spice Basil seeds should be planted about 1/4 inch deep and kept moist until germinating, which usually takes 5-10 days. Once the seedlings have developed a few sets of true leaves, they can be thinned to about 6-12 inches apart. If starting with transplants or cuttings, they should be planted at the same depth as their original container.

Blue Spice Basil is a warm-season herb that should be planted after the last frost. It thrives in full sun but can tolerate partial shade. In colder regions, it can also be grown in containers and moved indoors during the winter.


Blue Spice Basil prefers consistent moisture but prefers avoiding sitting waterlogged soil. Keeping the soil evenly moist is important, especially during hot, dry weather. Water at the base of the plant rather than on the leaves to avoid disease. Using a drip irrigation system can help maintain consistent moisture levels.


Blue Spice Basil is a heavy feeder and benefits from regular fertilization. A balanced, all-purpose fertilizer can be applied every 4-6 weeks during the growing season. Avoid over-fertilizing, as it can lead to poor flavor and aroma in the herb.

Harvesting of the Blue Spice Basil

When it comes to harvesting Blue Spice Basil, timing is crucial. The best time to harvest this herb is in the morning when the leaves are at their freshest and have not been exposed to too much heat from the sun. This ensures you get the most flavor and aroma from your basil.

Blue Spice Basil can be harvested throughout its growing season, typically lasting from late spring to early fall. To harvest, use sharp scissors or pruning shears to cut off the top few inches of the plant, just above a set of leaves. This method will encourage new growth and keep your plant producing more leaves.

It is important to avoid cutting off too many leaves at once when harvesting, as this can stunt the plant’s growth. It is also important to avoid cutting off the top growing tips of the plant, as this can prevent new growth from occurring.

Preserving Blue Spice Basil

Blue Spice Basil is a highly versatile herb in various dishes and cuisines. However, using all the basil you have harvested at once may only sometimes be possible. That is why knowing how to preserve this flavorful herb is important properly.

The most common methods of preserving Blue Spice Basil include drying, freezing, and making pesto. Drying basil involves hanging the stems upside down in a cool, dark place until completely dry. Once dry, you can remove the leaves from the stems and store them in an airtight container. Dried basil can be used in cooking, but it loses some flavor and is best used in dishes that require longer cooking times.

Freezing basil is another popular method of preserving this herb. To freeze Blue Spice Basil, thoroughly wash and dry the leaves before placing them in a freezer-safe bag or container. You can also chop the leaves into smaller pieces before freezing. Frozen basil can be used in cooking, but it is best to add it towards the end of the cooking process to retain its flavor.

Where Does Blue Spice Basil Grow? Region-wise

Blue Spice Basil is native to Southeast Asia, specifically Thailand and Indonesia. It has since been cultivated in many other regions worldwide, including Europe and North America. In terms of climate, Blue Spice Basil prefers warm temperatures and plenty of sunlight. It can be grown outdoors during the summer in temperate climates or indoors year-round in colder regions.

In addition to its role in the kitchen, Blue Spice Basil has a rich history and cultural significance. In Thai culture, this herb is believed to bring good luck and protect against evil spirits. 

What are the Things to Remember when Buying Blue Spice Basil?

When buying Blue Spice Basil, there are a few things to remember to ensure you get the best quality and flavor. Firstly, look for fresh, vibrant leaves with no signs of wilting or discoloration. The stems should also be firm and not limp.

It is important to buy Blue Spice Basil from a trusted source, whether from a local farmer’s market or a reputable grocery store. This ensures the basil has been grown and handled properly without harmful pesticides. 

Lastly, consider buying organic Blue Spice Basil. This means the herb has been grown without synthetic fertilizers and pesticides, making it a healthier and more environmentally friendly choice.

How do you Store and Use Frozen Blue Spice Basil?

As mentioned earlier, freezing is an excellent way to preserve Blue Spice Basil for later use. Make sure to wash and dry the leaves thoroughly before freezing. You can freeze whole leaves or chop them up and store them in an airtight container or freezer bag.

When using frozen Blue Spice Basil, there’s no need to thaw it first. Add the frozen leaves directly to your cooking for flavor. It is also great for making pesto or adding to soups and stews.

Remember to use frozen Blue Spice Basil for the best flavor within 3-6 months. After that, it may start to lose its taste and aroma. 


Blue Spice Basil may be lesser-known than its sweet basil counterpart, but it is a versatile and flavorful herb that deserves a spot in your kitchen. Its refreshing, minty flavor adds a unique twist to any dish, making it a must-have for all herb enthusiasts. By following the tips mentioned in this document, you can ensure that you are always getting the freshest and best quality Blue Spice Basil.

So next time you see Blue Spice Basil at your local market or grocery store, don’t hesitate to try it. Who knows, it may just become your new favorite herb! Remember to store and use it properly to appreciate its delicious flavor and beneficial properties fully. 

Mitch Baylis

1 thought on “Everything You Wanted To Know About Blue Spice Basil”

Comments are closed.