GUIDE TO GROWING HERBS INDOORS
Herbs can be grown indoors on window sills all year round. If the window is facing north, make sure they get a little shade during the summer months. Herbs need about 6 hours of sunshine per day and prefer temperatures of around 13ºC - 21ºC. In winter you can use fluorescent lights to supplement their growth and fool the herbs into thinking that it is still summer.
Herbs that can be grown indoors
- Mint - Can be rooted from cutting, can grow with less light than other herbs, likes water
- Chives - Keep well watered
- Lavender- Prefers direct sun
- Thyme - Full sunlight and intermittent watering.
- Parsley - Can grow with less light than other herbs
- Bay Leaf - Prefers filtered sunlight in a cooler place
- Basil - Best grow from seed, loves the sun and heat needs about 16 hours of light per day and temperatures above 10ºC.
- Rosemary - Can be rooted from cutting, can grow with less light than other herbs
- Sage - Likes direct sunlight
- Dill - Best grown from seed
- Coriander - Best grown from seed
Herbs like well drained soil. A mixture of 1 potting mix, 1 part sand and 1 part humus is a good grow medium for soil based growing.
As a general rule, only water herbs when the top part of the soil is dry. Water in the morning but do not over water or root fungus could become a problem.
Herbs grown indoors will need feeding once a month with fish emulsion.
Fluorescent lighting should be placed about 15cm - 23cm above small herbs and 30cm - 40cm above large herbs.
Just like all plants, herbs need airflow. Houses can be stuffy places, so to keep your herbs healthy you can open a window from time to time or use a fan to blow air directly onto them.