Bok choy starts off in a seed. This seed is placed in a small hole in the dirt. The seeds are planted 20 inches apart from each other. Then the dirt is pushed on top of the seed in order to protect the seed and surround it with nutrients. This bok choy will take up to 60 days to grow, so the seeds must be planted early enough to allow them to grow before the summer, since bok choy likes cool weather.
This plant is also planted in the fall, as it is resistant to colder weather. Bok choy is one of the last edible crops to perish in the cold. However, young bok choy can bolt if planted too early. One way to avoid this bolting is to start bok choy inside and then transport the bok choy to the garden after two weeks. Adequate moisture will also reduce bolting. Bok choy will grow the healthiest in soil that the gardener has broken up and fertilized well.
Like all plants, bok choy needs sunlight, water and space in order to grow healthily. Bok choy does not get along well with weeds and the weeds must be pulled frequently in order to keep the bok choy healthy.
Insects can also be a problem, since pesticides can contaminate the bok choy. Nasturtiums can be planted nearby bok choy in order to prevent slugs. However, more organic insect repellents will not contaminate the bok choy. Bok choy is also susceptible to rotting diseases and must be protected from excess humidity.
Bok choy can be grown in the summer if placed in a semi-shaded area. This bok choy should be kept hydrated but also well drained. However, growing bok choy in the summer is always a risk. The soil must be kept moist in order for the bok choy to survive.
Bok choy can be grown during the summer and winter indoors using hydroponics, which is a system that uses water and nutrients to grow vegetables without soil. Sun lamps can give the bok choy adequate sunlight.