How to Grow Basil Indoors

Close up photo of a sweet basil plant with dewdrops of water on the leaves.

by Bob the Gardener

Basil is an annual herb that can be found in dishes all around the world. This is an easy plant to grow indoors and it will thrive in a sunny location with regular watering. The following steps will help you grow your own basil indoors.

Growing Basil Indoors

  1. Start seeds a few weeks before the last frost.
  2. Fill your pots with a good quality potting soil.
  3. Pre-soak the soil and sow the seeds 1/4″ deep.
  4. Place the plant pots in a sunny location.
  5. Keep the soil moist at all times; if the soil dries out, it will kill the seeds or seedling germination.
  6. Basil seedlings will take approximately 5-12 days to grow.
Transplanting Seedlings

Seedlings can be transplanted in a 4″ pot after they have two (2) sets of leaves.

Watering

As a general rule, whenever the soil starts to look dry it can be watered. Soil should always be moist, but never soggy.

Companion Planting

When basil is planted near tomatoes, this will repel flies and mosquitoes and will enhance the flavour.

Basil Varieties

Sweet Basil: Medium sized aromatic leaves.

Thai Basil: Used in Thai cooking, the leaves are anise flower. It holds flavour well when cooked.

Cinnamon Basil: The leaves retain the spicy sweet flavour of cinnamon.

Italian Large Leaf Basil: The leaves grow 4″ long and the flavour is sweet and mild.

Purple Basil: Dark opal basil is a beautiful plant with purple leaves and a sweet flavour.


Bob can often be found maintaining the Viamede gardens during the summer and enjoys leading garden tours for guests. He will be holding Planting Classes as part of our March Break activity schedule.