How to Propagate Basil from Seed: Amazing Methods will Impress You


Do you know how to propagate basil from seed? Affectionate for its sweet and spicy taste, the herb is easy to cultivate from seeds for a regular harvest throughout the season. Many different varieties are available for home gardens, each with its own unique charm and characteristics. Cultivars like ‘Genovese’ produce large, green leaves with a sweet flavour of cinnamon or cloves. Thai varieties have small leaves that possess a distinct scent of anise in their taste. They also have stunning blooms of deep purple. Also, there are attractive variegated and purple-leaf varieties too.

Whichever one you pick, It’s a great idea to plant them in the order of growing – these delicious leaves quickly disappear, so you shouldn’t have delays in the production! Plant your first crops indoors and then direct sow the seeds outside once consistent warmer temperatures begin to appear. Growing your own garden is simple to enjoy, enjoyable, and cost-effective also – and you’ll get your first harvest in just a few weeks after sowing! If you’re looking for more tasty herbs in your kitchen, Let’s get into how to propagate basil from seed.

How to propagate basil from seed

Read below methods to propagate basil from seed.

When should you start

Basil plants belong to the Lamiaceae or mint family, tender hot-lovers native to tropical regions in Africa and Southeast Asia. When they are in the gardens, they need the sun to shine and warm soil. For direct sowing in pots or gardens, make sure that overnight temperatures stay above 50degF, typically from mid-April until the beginning of June, based on the region you live in. Seeds begin to germinate between 50 and 70 degrees F, and they will definitely grow and germinate more efficiently at the higher portion of this temperature range.

Dry, cold conditions can be a nightmare for basil seedlings and may cause fatal issues like damping off. To be ahead of conditions, the seeds can be planted inside if they are provided with sufficient light and warm temperature. Grow lights, and heat mats can aid in creating the conditions. Get indoors three or four weeks before your date for the last frost. Then, transplant it out when the temperatures are at their optimal.

Seedling care

When seedlings reach between two and 4-inches tall, spread them thin to one inch in the distance. When they’re between four and six inches tall, cut off the tops to encourage the growth of branches and bushiness. You can cut the stem at the top of the second leaf set. Likely the seedlings are susceptible to damping. This is a fungal disease prevalent in humid, cold conditions, which causes the roots and stems to rot and fall beneath the soil’s line.

To reduce the chance of damping, you should use an untreated soil mix. Offer bright lighting for 6-8 hours per day, and make sure that temperatures in the surrounding area are between 50 and 70 degF. Also, ensure that plants have adequate air circulation. For indoor seedlings, it is possible to prefer to set an air conditioner on the lowest setting to create the plants with a soft breeze.

Transplanting plants into containers or garden beds

After the plants have had their first pinch and temperatures have been consistently at or above 50degF, transfer them into containers or beds for the garden. Plants should be placed in soil that drains well and is rich in plenty of compost from the past or well-rotted manure. Add a few crumbs of bone meal into the soil to promote healthy root growth. Containers for potted plants must be at least six inches wide and deep, and all pots require drainage holes. Basil is not a good choice in humid soil. I recommend adding some drainage material to the excavations, such as broken pottery or pebbles.

In the garden beds, place plants between 8 and 12 inches apart, in the form of mounded rows or hills. Basil thrives in humid but not wet conditions, and the soil needs to drain well to keep roots from sitting in water. A two-to-four-inch mulch of pea gravel, leaf mould, and straw mulch may help retain the moisture around the roots. Use a water-soluble, balanced fertilizer, such as 10-10-10 NPK, on a month-to-month basis to ensure rapid growth and consistent leaf production. Container plants require a more frequent feeding every 2 or 3 weeks throughout the growing season. However, at this rate, fertilize with a half-strength diluting.

As I said, the plants struggle when temperatures are lower than 50degF. If temperatures begin to cool and your seedlings are exposed, make sure you protect them with cloches or a cover for the row during cold winter nights, such as these reusable cool-weather row covers, sold through Gardener’s Supply Company.

Cultivars to choose

Seeds of a variety are readily available in garden centres and on the internet, and this guide of our top 13 combinations of basil offers some exciting types to test out. Seed packages of best-suited-for-pesto Genovese variety are available in Burpee as well as you could buy seeds in bulk from Eden Brothers. For something completely more unique, the organic “Dark Opal” is an oblong-leaf purple variety. Seeds packaged in packets or large quantities can be found at Eden Brothers.’Corsican is a family-owned Mediterranean cultivar that comes with green and purple leaves. The seeds are available in the True Leaf Market. Packets of spicy Thai basil seeds can be bought from Burpee and True Leaf Market. Lemon basil seeds are available on True Leaf Market in packs or large quantities.

An abundant harvest

Fast-growing and easy to grow, you’ll appreciate the pleasure of growing basil from seeds. Enjoy these delicious tender herbs at any season by sowing them inside. Make a series of outdoor plantings to harvest many leaves in summer and spring.

How to grow basil outdoors

If you decide to master the art of growing basil outdoors, you’ll start the seeds inside in spring, whether in a greenhouse or on the warm windowsill. Plant seeds in small pots of peat-free, multi-purpose compost that is moist and cover the pot with a thin layer of vermiculite, then place them in a propagator and cover with the freezer bag. When the seeds have germinated, take off the cover. Once they have formed the first leaves that are true and are large enough to be handled, plant them in small, individual 3.5 inches pots.

How to care for basil

Watering your seedlings

The seedlings should be watered about every two weeks. It can vary based on the humidity levels in your area. If the top layer of soil appears dry, it’s time to get water. Always make sure to water the lowest point. The seedling will drink through its root system and not from the bottom of your plant. If the top layer of soil is wet enough, it can lead to mould growth. The best method for doing this is to set the pot in the water basin till the bottom becomes wet. Then, take the pot out and put it back in the saucer.

If the saucer’s size is enough, you may simply fill it with water. When the top is entirely saturated, drain any excess water. If your seedlings age and are moved to a bigger pot, you can utilize an instrument to measure your soil’s moisture to monitor the time when your plant should be fed.

In providing enough light

Basil is a fan of the sun’s warmth. Be sure that your plant gets at least six hours of sunshine from the window. If you’re growing basil indoors, you will most likely require additional sources of light like CFLs and Grow lights. A regular light bulb placed close to one plant can work in a pinch. At the beginning of growth, it is essential to provide the most light possible to ensure a healthy and growing plant that is well-branched. 12-16 hours of lighting is recommended for seedlings just beginning to emerge. Shop lights are commonly used to plant seedlings inside. They’re long enough to illuminate several seed trays and can be easily adjusted.

Air circulation

The plants require adequate circulation of air and movement to stay healthy. Consider how they develop outdoors when the wind is blowing. Set a fan in its tiniest setting and point it towards the seeds. It should only be a little bit to create a breeze to move slightly but not so much that they appear to be in an erupting tornado. You can set this fan on the same timer as you use for your light or turn it off for only a short time.

How to propagate basil from seed: Tips

The ideal temperature for seeds to germinate will be 70degF. Cover the trays with a moistened seed mix brought up to the temperature of room temperature if it was kept somewhere cold or utilized cold water for sources that are sown indoors. Place seeds lightly on the soil and then cover them with about half an inch of soil. Firm the soil by an ebb and flow. Soak the soil in an effortless stream of water to not disturb the seeds or provide the soil with water at the bottom. Set the trays in a bright space, in a warm place, and under grow to light. The soil should remain moist but not totally damp. To sow outside plants, they must get at least six hours of full sunlight in a well-drained area.

In pots or beds, create rich loamy soil with an acidic pH of 6.0 or 7.5. The soil should be amended with lots of organic matter, such as manure, compost, or old manure. You can also sprinkle on some landscape pea gravel or sand to increase drainage when needed. Add some bone meal to ensure healthy root development. Place seeds on the top of the soil, then cover them with one-half inches of soil. Be gentle with water and keep the soil moist, but not completely wet. Germination typically takes between 5 and 10 days, and the first sprouts will emerge in the form of D-shaped leaves.


Planting basil seeds from seed is the most efficient method to cultivate a huge quantity of plants for the smallest amount. There are many kinds of basil, as only the primary varieties are sold in markets. Why not plant some citrus or Thai basil to add some flavour this year? Whatever you choose to grow, make sure to plant some basil seeds this season. It’s satisfying to see your seedlings flourish, but it is also a fantastic way to kick off the season of growth. So we hope you don’t have any confusion on how to propagate basil from seed.

Leave a Reply

Your email address will not be published. Required fields are marked *

seven + 13 =