How to Grow Basil: The Ultimate Guide

Mastering the Art of Gardening: How to Grow Basil Successfully

Basil is a beloved culinary herb, prized for its aromatic and flavorful leaves. As someone who loves growing basil and using its fresh leaves in cooking, especially in tomato-based sauces, I can attest to the value of learning how to grow basil. With various types to choose from, such as sweet basil, Thai basil, and lemon basil, mastering the art of growing basil is a valuable skill for new and experienced gardeners. This comprehensive guide will explore how to plant, propagate, harvest, and basil plant care.

Basil Varieties

Basil, a beloved culinary herb, boasts an array of delightful basil varieties that cater to diverse tastes and preferences. With distinct flavours, aromas, and appearances, these varieties can add a unique touch to your garden and your favourite dishes. Among the many options, my personal favourites are Genovese and Thai basil. Here are some popular basil varieties:

  • Sweet basil: The classic basil variety used in Italian cuisine, with large, tender green leaves and a sweet, aromatic flavour.
  • Genovese basil: A subtype of sweet basil, prized for its large leaves and robust flavour, often used in pesto.
  • Thai basil: With a distinct anise-like flavour, Thai basil is popular in Southeast Asian dishes.
  • Cinnamon Basil: Known for its distinct cinnamon-like flavour and aroma. Cinnamon basil has slightly serrated dark green leaves with a unique cinnamon scent.
  • Italian Large Leaf Basil: This is a type of sweet basil that is native to Italy. Italian large-leaf basil has large, bright green leaves that are slightly wrinkled and have a sweet aroma. The leaves can grow up to 4 inches long and 3 inches wide. Commonly used in Italian cuisine, including in the making of pesto sauce, as well as in salads, pasta dishes, and soups.
  • Lime Basil: Lime basil is known for its citrusy flavour and aroma. It has slightly pointed bright green leaves with a distinct lime scent. This type of basil is commonly used in Thai and other Southeast Asian cuisines and in desserts and beverages.
  • Purple basil: This variety features striking dark purple leaves and a milder flavour, making it a beautiful and tasty addition to your garden.

1. How to Grow Basil

Learning how to grow basil has been a rewarding experience for me. This fragrant herb adds a fresh and delightful flavour to various dishes and has proven easy to germinate from seeds. For gardeners and food enthusiasts alike, growing healthy basil plants from seeds is an essential skill. Follow these crucial steps to cultivate your basil successfully:

Starting Basil from Seeds

A. Choosing the Right Seeds: Select high-quality basil seeds from a reputable source. Numerous basil varieties are available, so consider the type that best suits your culinary preferences and regional climate. Popular options include Genovese, Thai, lemon, and purple basil.

B. Indoor Seed Starting: To get a head start on the growing season, begin sowing basil seeds indoors 6-8 weeks before the last frost date. Fill seed trays or small pots with a seed-starting mix, moisten the soil, and sow the seeds on the surface. Lightly cover the seeds with soil or fine sand and keep the containers in a warm area, ideally between 70-80°F (21-27°C). This temperature range promotes successful germination and strong seedling growth.

C. Germination and Seedling Care: Basil seeds germinate within 5-10 days. Keep the soil consistently moist but not waterlogged during germination, as excessive moisture can lead to damping off or rotting. Once seedlings emerge, move the containers to a sunny windowsill or place them under grow lights. Ensure they receive at least 6 hours of direct sunlight daily to encourage robust and healthy growth.

2. Transplanting Basil

  1. Preparing the Garden Bed: Prepare a garden bed in a sunny location with well-draining soil. Basil prefers a pH level between 6.0 and 7.0; amend the soil accordingly if needed. Incorporate organic matter, such as compost or aged manure, to improve drainage and fertility.
  2. Hardening Off Seedlings: Before transplanting your basil seedlings outdoors, harden them off by gradually exposing them to outdoor conditions. Over the course of a week, increase the amount of time they spend outside each day, ensuring they are protected from extreme temperatures and wind.
  3. Planting Seedlings: Transplant basil seedlings outdoors after the last frost when they have at least two sets of true leaves. Space the seedlings 12-18 inches apart for proper growth and airflow.

3. How to Propagate Basil

How to propagate basil? Follow these steps for success:

  1. Selecting the Right Cuttings: Choose healthy, vigorous stems from your existing basil plant to propagate. Select stems about 4-6 inches long and have at least two sets of leaves.
  2. Preparing the Cuttings: Remove the lower leaves from the stem, leaving only the top two sets of leaves. Make a clean, diagonal cut just below a node (the point where a leaf attaches to the stem).
  3. Rooting the Cuttings: Place the prepared cuttings in a container filled with water, ensuring the lower nodes are submerged, but the remaining leaves are not touching the water. Place the container in a location with bright, indirect light.
  4. Monitoring Root Growth: Change the water every few days to prevent bacteria and algae buildup. Within 1-2 weeks, roots should begin to form at the nodes. Once roots are at least 2 inches long, the cuttings can be transplanted into soil.
  5. Transplanting Rooted Cuttings: Plant the rooted cuttings in a container or garden bed filled with well-draining soil. Follow the same planting guidelines for transplanting seedlings, spacing the cuttings 12-18 inches apart.

4. Basil Plant Care

Here are some steps for basil plant care, ensuring this aromatic herb thrives in your garden:

  1. Watering: Basil requires consistent moisture, but avoid overwatering, which can lead to root rot. Water the plants deeply at the base, allowing the soil to dry slightly between waterings.
  2. Fertilizing Basil benefits from regular fertilization. Use a balanced, water-soluble fertilizer every 4-6 weeks, following the manufacturer’s instructions. Alternatively, you can incorporate compost or aged manure into the soil to provide essential nutrients.
  3. Pruning and Pinching Regularly pinch back the tips of basil plants to encourage bushy growth and prevent flowering. Remove any flowers that appear to direct the plant’s energy back into foliage production. Prune any yellowing or damaged leaves to maintain plant health.
  4. Pest and Disease Control Monitor basil plants for common pests like aphids, whiteflies, and spider mites. Remove pests manually or use a natural insecticidal soap if infestations are severe. To prevent fungal diseases, ensure proper spacing, and avoid overwatering.

5. How Much Sun Does Basil Need?

Basil thrives in full sun and requires a minimum of 6-8 hours of direct sunlight daily. While the plant can tolerate some partial shade, too much shade can lead to weak, leggy growth and reduced flavour. Ensure your basil plants are in a sunny location to maximize their growth potential.

6. How to Harvest Basil

  1. Timing Begin harvesting basil once the plant has reached at least 6-8 inches in height and has multiple sets of leaves. It is best to harvest in the morning when the leaves contain the highest concentration of essential oils.
  2. Method Harvest basil by pinching or snipping off the leaves or stem tips just above a leaf node. This encourages new growth and a bushier plant. Remove only one-third of the plant at a time, allowing it to recover before harvesting again.
  3. Storing Fresh Basil To store fresh basil, wrap the harvested stems in a damp paper towel and place them in a plastic bag or airtight container in the refrigerator. Alternatively, you can place the stems in a jar of water, cover the leaves with a plastic bag, and store them at room temperature.

7. Preserving Basil

  1. Drying To dry basil, hang small bunches of stems upside down in a warm, dry, well-ventilated area away from direct sunlight. Once the leaves are completely dry, remove them from the stems and store them in an airtight container.
  2. Freezing Basil can also be preserved by freezing. Chop fresh basil leaves and mix them with a small amount of water or olive oil. Transfer the mixture to an ice cube tray and freeze. Once frozen, store the basil cubes in a freezer-safe container for easy use in recipes.

8. Growing Basil in Pots: Tips for Container Gardening

If you have limited space or want to grow basil indoors, growing basil in pots is the perfect solution. Container gardening allows you to enjoy the benefits of fresh basil even if you don’t have a traditional garden bed. This section will explore the essential tips and tricks for successfully growing basil in pots.

  1. Selecting the Right Pot: When choosing a container for growing basil, ensure it has drainage holes to prevent waterlogging. Opt for a pot at least 8-12 inches deep to accommodate the plant’s root system. Materials like terra cotta, plastic, or glazed ceramic are all suitable options.
  2. Choosing the Best Potting Mix: A high-quality, well-draining potting mix is crucial for successfully growing basil in pots. Look for a mix containing a blend of peat moss, vermiculite, and perlite, providing good drainage, aeration, and moisture retention. Avoid using garden soil, which can compact and become waterlogged in a container.
  3. Planting Basil in Pots: Sow basil seeds directly into the pot or transplant seedlings once they have developed at least two sets of true leaves. Follow the same planting guidelines for garden beds, placing seeds or seedlings about 12-18 inches apart to allow for proper growth and airflow.
  4. Watering and Fertilizing: Basil grown in pots may require more frequent watering than garden-grown basil, as containers tend to dry out more quickly. Check the soil moisture regularly and water deeply when the top inch of soil feels dry. Fertilize container-grown basil every 4-6 weeks with a balanced, water-soluble fertilizer, following the manufacturer’s instructions.
  5. Providing Adequate Sunlight: Basil plants need at least 6-8 hours of direct sunlight daily to thrive. Place your potted basil on a sunny windowsill, a patio, or another area with full-sun exposure. Rotate the pot every few days to ensure light distribution and prevent leggy growth.

Companion Planting

Companion planting is a gardening technique that involves planting different crops next to each other to improve growth, deter pests, and enhance flavour. Basil is a popular herb commonly used in cooking and can benefit from companion planting. This section will explore some of the best companion plants for basil and why they are beneficial.

Basil Companion Plants

  • Tomatoes: Basil and tomatoes are a classic combination in Italian cuisine, and for a good reason. Tomatoes and basil are both nightshade family members and have similar nutrient requirements. Planting basil alongside tomato plants can help improve the flavour of the tomatoes and deter pests such as tomato hornworms and aphids.
  • Peppers: Peppers and basil are another great combination. Basil can help repel pests such as spider mites and aphids, which can damage pepper plants. Additionally, planting basil near peppers can help improve the flavour of the peppers and enhance their growth.
  • Beans: Beans are nitrogen-fixing plants, which means they can convert nitrogen from the air into a form available to other plants. Planting basil near bean plants can help improve the soil quality and enhance the growth of both crops.
  • Lettuce: Basil and lettuce are a great combination for gardeners who like to grow salads. Planting basil near lettuce can help deter pests such as slugs and snails, which can damage lettuce leaves. Additionally, the aromatic oils in basil can help enhance the flavour of lettuce leaves.
  • Garlic: Garlic is another member of the allium family and can be a great companion plant for basil. Planting garlic near basil can help deter pests such as aphids and spider mites, which can damage basil leaves. Additionally, garlic can help improve soil quality and enhance the growth of both crops.

Plants to Avoid

While many plants can be beneficial to grow alongside basil, some should be avoided. Here are a few examples:

  • Rue: Rue is a herb that produces a strong aroma that can overwhelm many plants, including basil. Planting rue near basil can stunt the growth of the basil and make it less flavorful.
  • Fennel: Fennel is a member of the same family as basil, but it can harm the flavour of basil. Planting fennel near basil can make the basil taste bitter.
  • Sage: Sage is another herb that can be overwhelming for basil. Planting sage near basil can stunt the growth of the basil and make it less flavorful.
  • Anise: Anise is a herb that can harm the flavour of basil. Planting anise near basil can make the basil taste bitter.
  • Chamomile: Chamomile is a herb that can inhibit the growth of basil. Planting chamomile near basil can make the basil grow more slowly and produce less flavorful leaves.

In general, it’s a good idea to avoid planting herbs that produce strong aromas near basil. Additionally, plants that are known to be allelopathic (meaning they produce chemicals that can inhibit the growth of other plants) should be avoided as well. By being mindful of the plants you choose to grow alongside your basil, you can help ensure that your basil plants grow strong, healthy, and flavorful.


Learning how to grow basil successfully can significantly enhance your culinary repertoire and provide a steady supply of this versatile herb. By following the guidelines for planting, propagating, harvesting, and basil plant care, you’ll be well on your way to enjoying the many benefits of this aromatic plant.

Leave a Reply