The Ultimate Guide: Learn How to Grow Basil From Seed

Updated: 8 May 2024


Spread the love

Basil, or Ocimum basilicum, is a fragrant herb in the mint family. It is a plant used in countless dishes worldwide. Basil adds a fresh, spicy flavor that’s hard to match.

You watch Basil grow from its first leaves to its mature form. It is rewarding to watch, both for your eyes and your stomach. Basil can be grown outdoors as well as indoors. It’s within your reach, and I’m here to guide you on how to grow basil from seed.

Growing Basil
Growing Basil

Understanding the Growth Cycle of Basil

Before delving into how to grow Basil, it’s essential to understand its growth cycle. How long does Basil take to produce? Basil reaches maturity within 60 to 90 days from planting. The plant’s life cycle begins with germination. The seeds sprout and develop roots and shoots. After this stage, there is a vegetative stage, where the plant focuses on growing leaves and stems.

As the plant matures, it enters the flowering stage. For cooking, harvest Basil before it flowers. The leaves lose flavor after the flowers appear. Knowing these stages helps you plan when to plant. It also shows how to care for your Basil to ensure a bountiful and tasty harvest.

Growth Cycle of Basil
Growth Cycle of Basil

Growing Basil Outdoors: Tips and Techniques

Growing Basil outdoors is quite rewarding. Basil thrives in warm climates with plenty of sunlight. When I first began growing Basil outside, I learned that picking the right spot is crucial. Basil loves the sun and requires around six to eight hours of direct sunlight daily. I always plant my Basil in a place with ample morning light, as the afternoon sun can sometimes be too harsh.

The soil is another important factor. Basil prefers rich, well-draining soil with a neutral to acidic pH. Before planting, I enrich my garden soil with compost to ensure my Basil gets all the nutrients it needs. Watering is essential. Basil likes moisture but hates soggy feet, so I provide the soil is moist but not soggy.

To protect my Basil from the cooler weather, I plant it after the last frost date in spring. Basil is sensitive to cold. So, you must wait until the temperatures are above 50 degrees Fahrenheit. This is true even at night. I also use mulch to keep the soil wet and control soil temperature. This ensures my basil plants have the ideal outdoor conditions to flourish.

Growing Basil Indoors: Creating the Perfect Environment

Sometimes, the outdoors isn’t good for Basil. Or, you don’t have the space. That’s when knowing how to grow Basil indoors becomes invaluable. I’ve cultivated Basil on windowsills and under grow lights with great success. The key is to mimic the conditions Basil would enjoy outdoors.

Firstly, ensure your Basil gets enough light. A south-facing window that offers six to eight hours of sunlight is perfect. Investing in grow lights can make a difference if natural light is limited. Keep the indoor temperature between 65 and 75 degrees Fahrenheit. Basil loves warmth.

Use a good potting mix. Use pots with enough drainage holes for soil. I water my indoor basil plants when the top inch of the soil feels dry to the touch, avoiding overwatering. Indoor humidity can also be a factor. So, I sometimes place the pots on a tray with pebbles and water. This raises the moisture around the plants.

Growing basil indoors
Growing basil indoors

Step-by-Step Guide: How to Grow Basil from Seed

Growing Basil from seed is a journey I find particularly fulfilling. Here’s my guide to growing Basil from seed, which I refined through many seasons of trial and error. Begin by choosing high-quality seeds from a reputable source. Fill seed trays or small pots with a moistened seed-starting mix and sprinkle a few seeds. Cover the seeds with more mix, as basil seeds need light to germinate.

Place the trays or pots in a warm area and keep the soil moist but not soggy. Basil seeds germinate within 5 to 10 days. Once the seedlings emerge and have a couple of true leaves, I thin them out, leaving the most robust plant in each pot.

Transplanting comes next. If I start indoors, I make sure to harden off the seedlings. I expose them to outdoor conditions for a week before planting them in the garden. This step is crucial to prevent shock from the sudden environmental change. Plant the seedlings in prepared soil, spacing them about 12 to 18 inches apart to give them room to grow.

Growing basil from seed
Growing basil from seed

Caring for Your Basil Plants: Watering, Fertilizing, and Pruning

Caring for basil plants is simple, but close attention to detail is key. Watering is the lifeline of Basil; I always aim to keep the soil moist. I water in the early morning, letting the foliage dry during the day, which cuts the risk of fungal diseases.

Fertilizing is another crucial aspect. I feed my basil plants with a balanced liquid fertilizer. It’s all-purpose. I do this every four to six weeks during the growing season. This provides them with the necessary nutrients to produce lush, flavorful leaves.

Pruning is essential for a bushy, productive basil plant. I regularly pinch off the tips of the stems, which encourages lateral growth. You must also remove any flowers. This sends the plant’s energy back into making leaves.

Common Issues and Troubleshooting Tips for Growing Basil

Even with the best care, issues can arise when Basil grows. One common problem is leggy plants, which usually indicate insufficient light. If you’re growing Basil indoors and notice leggy growth, move the plants to a sunnier spot or use grow lights.

Pests can also be a concern. Aphids and spider mites are attracted to Basil. But regular inspections and a strong blast of water can often keep these pests away. If an infestation occurs, I use organic insecticidal soap as a treatment.

Diseases such as fusarium wilt and downy mildew can also affect Basil. Good airflow around the plants helps, as does avoiding overhead watering. These steps can prevent these issues. If a plant gets sick, I remove it. I destroy it to stop the disease from spreading to healthy plants.

Harvesting and Storing Basil: When and How to Do It

The best time to harvest basil is in the morning when the peak of the essential oil is reached. I use scissors to snip off the leaves or stems, always cutting above a leaf pair to encourage new growth. Harvesting regularly is best, as this promotes a bushier plant with more leaves.

I’ve experimented with various methods for storing Basil. For short-term use, I wrap the stems in a damp paper towel and store them in a plastic bag in the refrigerator. I blanch the leaves and freeze them in an airtight container. This keeps their flavor for a long time. Drying is another option, though it can diminish the herb’s potency.

Harvesting basil
Harvesting basil

Frequently Asked Questions About Growing Basil

Over time, I’ve encountered many questions regarding basil cultivation. One joint inquiry is about the different varieties of Basil. There are many types, including sweet Basil, Thai Basil, and purple Basil. Each has its own flavor and growth habits. Another frequent question is about growing Basil in cooler climates. Basil prefers warmth. However, a greenhouse or cold frame can extend the growing season in cold regions.

People also often ask about the signs of overwatering Basil. Yellowing leaves and a lack of growth can indicate too much water. Letting the soil dry out slightly between waterings is crucial to prevent root rot.


Mastering how to grow Basil can be a profoundly satisfying endeavor. You might be a seasoned gardener or a novice. But, the joy of harvesting your fresh Basil is unmatched. Follow the tips in this guide. They’ll help you grow Basil like a pro.

I encourage you to leap if inspired to start your basil journey. Remember, growing Basil is not just about the harvest; it’s about the growth you experience. Please feel free to reach out if you have any questions or wish to share your basil success stories.



Hi, I am Sikandar Mehdi, founder of I have been a professional farmer for 20 years. After graduating in 2002, I started learning about vegetables. After a lot of experience, in 2023, I started sharing my blog on my platform,

Please Write Your Comments