Growing Basil - Standard Garden Substrate, Sunny Location, Moderate Watering

Basil (Ocimum basilicum) is one of the most popular culinary herbs that you can easily grow both outdoors in the garden and indoors on a windowsill. This aromatic plant originally from tropical Asia brings not only an exceptional flavour to dishes but also decorates your home with its lush green leaves.

Choosing the Right Substrate for Basil

Basil thrives best in standard garden substrate that is light, well-draining and rich in nutrients. The ideal substrate should have:

  • Good drainage to prevent waterlogging
  • pH between 6.0-7.5
  • Content of organic matter
  • Airy structure allowing root respiration

You can use a quality potting mix for herbs or prepare your own mixture of garden soil, compost and perlite in a 2:1:1 ratio. If growing in containers, ensure pots have drainage holes at the bottom.

Sunny Location - Key to Success

Basil is a sun-loving plant that requires at least 6-8 hours of direct sunlight daily. Choose a location where the plant receives maximum light, ideally:

  • South-facing windowsill
  • Sunny spot in the garden
  • Balcony or terrace with southern exposure
  • Greenhouse with sufficient lighting

Insufficient light leads to elongated, pale plants with less intense flavour. When growing indoors, you can supplement natural light with grow lights, especially during winter months.

Moderate Watering - Finding the Right Balance

Proper watering is crucial for healthy basil growth. This herb prefers consistently moist but not waterlogged soil. Follow these watering principles:

  • Water regularly, ideally in the morning
  • Check soil moisture with your finger - water when the top 2-3 cm is dry
  • Avoid wetting the leaves to prevent fungal diseases
  • In hot weather, you may need to water daily
  • Reduce watering frequency during cloudy and cold periods

Overwatering is one of the most common causes of basil problems. Waterlogged roots quickly rot and the plant wilts. Conversely, completely dried-out substrate causes stress and leaf loss.

Additional Growing Tips

For optimal basil growth, follow these recommendations:

  • Temperature: Basil loves warmth, ideal temperature is 20-25°C
  • Fertilisation: Apply diluted liquid fertiliser for herbs every 2-3 weeks
  • Pinching: Regular pinching of shoot tips promotes bushier growth
  • Flower removal: Remove flower buds to keep the plant producing tasty leaves
  • Harvesting: Pick leaves regularly to stimulate new growth

Common Problems and Solutions

When growing basil, you may encounter these issues:

  • Yellow leaves: Usually caused by overwatering or lack of nutrients
  • Drooping leaves: Sign of both water shortage and excess
  • Brown spots: May indicate fungal disease or sunburn
  • Pests: Aphids and whiteflies are most common - treat with natural preparations

With proper care, including quality substrate, sunny location and moderate watering, you'll enjoy a bountiful harvest of fresh basil leaves throughout the season. This unpretentious herb rewards attentive care with intense aroma and flavour that will enhance your culinary creations.


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Basil is usually a smooth, pleasantly fragrant annual reaching a height of 10 - 45 cm. It originates from India and the aromatic leaves of this plant are primarily used. There are many variations of colors and flavors of this herb. The inflorescence forms a raceme.

The densely leafy shoots are harvested by cutting 10 - 15 cm above the ground. It is a very popular herb in pharmacy, perfumery and the food industry. It is used as a base for many spice blends. It is used as a main seasoning in Italian and Indian cuisine. Traditional growing areas include France, Italy and Spain.

In recent decades, many cultivars have been developed, for example the large-leaved Ohře variety. The highest essential oil content is found in the curly Cripsum variety.

The active ingredient is deep green and has a strongly aromatic scent and taste. A significant component is a camphor-like essential oil in an amount of around half a percent.

In herbal medicine, it is used to relieve bloating, so adding basil to your cooking certainly doesn't hurt. When used as a mouthwash, it acts on the respiratory tract, providing calming and disinfecting effects.

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