Holy Basil
Holy basil (Ocimum tenuiflorum) or tulasi or Tulsi basil has a very peppery flavour – often called hot basil and is ideal if you like cooking spicy Thai dishes
This article will cover:
- How to grow Holy basil at home
- What Holy basil is used for
- Holy basil recipe examples
It will takes about 2 to 3 months to grow. More info in our ‘Where to buy Basil‘ article

1. How to grow holy basil at home
This basil is great for cooking but fresh Holy basil is not often available in many shops.
The plant has strongly scented green or purple leaves and purplish elongated flowers.
It is fun to grow, especially if you like cooking authentic dishes.
Basil is ideally suited for planting outside in a pot on a balcony or terrace. Or you can grow it inside on a sunny windowsill (or using lighting)
It will take about 60 to 80 days to grow. (2 to 3 months)

4 steps showing how to grow Holy basil at home:
Step 1 – The first step is to get the holy basil seeds. You can order them online or some garden centres will sell them. Not often mentioned but if you simply add the seeds into a bowl of water for 30 minutes to 1 hour they will start quicker then simply putting them in soil.
Step 2 – The next stage is to put the seeds in the soil. A very simple way is to fill a plant pot (or a few) with soil, then add the seeds and sprinkle a bit of soil on top.
The key is to sow them thinly into soil at a depth of 6mm

Step 3 – Then simply put the pot or tray somewhere safe and leave the sprout.
However a much, much quicker way is to use a heat mat. All you do is put the tray on the mat and the extra heat will significantly speed up how fast your seeds will grow.
For example the picture shows just how fast tomatoes will grow. For more info have a look at our article – How to use a seed starter mat
Step 4 – The seeds will germinate in 12 to 40 days. When they’ve grown thin the seedlings or transplant leaving 38 cm between plants, Then simple put them somewhere warm and sunny and wait for them to grow.
It loves warm very sunny conditions and hates cold draughts.

How to grow Holy basil using Hydroponics or Aquaponics.
Basil is one of the most popular herbs to grow using hydroponics – As it will be ready to be harvested quicker than planted in soil.
New to hydroponics? – Top 5 hydroponic kits for beginners
But in addition it is ideal for aquaponics – especially because it loves nitrogen. In addition, whether using hydroponics or aquaponics you will be able to grow it all year around – providing you with fresh herbs when you want it.

2. What is Holy basil used for
The Tulasi or Holy Basil herb is ideal if you like cooking spicy Thai dishes.
Although sometimes confused with Thai Basil the Holy Basil herb is completely different and has such a peppery flavour that it is often referred to as ‘hot basil’.
Please note that another herb ‘white holy basil’ is again slightly different, and often used for seafood dishes.

3. Examples of popular recipes that use Holy basil
Often cultivated for religious and medicinal purposes. And has an important role in Hinduism as an elixir of life.
Example recipes:
More information
The type of basil you use will differ depending on the flavour you need, as well as recipe requirements. There is more info at the example basil recipes page
One of the most surprising herbs I’ve grown – and great if you like hot recipes. Well worth giving a go, especially grown indoors using extra light