Whether you prefer to grow your vegetables indoors or out, there are trade offs involved. Soil type and preparation, watering practice, light control, disease and pest control, and other tasks will differ between the two environments. Which is preferable can only be an individual choice, based on individual circumstances.
Preparing and maintaining the soil for outdoor vegetable gardening can be a major chore. Nutrients can be exhausted by yearly planting of the same crop. Fertilizers get leached away. Soil disease is more difficult to control. Breaking up clay or changing pH in a large area requires considerable effort. But you do save the effort of preparing multiple containers and changing them out.
Indoor soil preparation requires less fertilizer, but can be harder to control. The soil has to be prepared carefully to maintain the right balance between drainage and moisture retention. It is much easier to retain the right level of moisture in outdoor gardens.
It is more difficult to create an automatic watering system for indoor gardens. A simple drip irrigation system is easy to install for outdoor gardens. An automatic sprinkler system for indoors can be more expensive and messy. However, if you only have a few indoor gardening containers, watering by hand will get the job done.
In outdoor vegetable gardens there is rarely a problem with adequate sunshine, provided they’re planned correctly. In most climates during the Summer it’s not difficult to give plants the five or more hours they need daily. Inside the house that can be tricky. Few will want to move plant containers around all day, but finding a single window that receives adequate light without burning the plants can be hard.
However finding shade for indoor plants is not a problem. On those hot days, you can simply close the window blinds to protect indoor plants. Also putting plants near a glass window provides a sort of greenhouse effect and promotes growth.
Diseases and pests can be a hard problem to tackle on both indoor and outdoor plants. But overcoming these obstacles is harder when it comes to outdoor plants. Obviously, outdoor plants are exposed to more pests and diseases than indoor plants. Combating pests and diseases in outdoor gardens requires a lot of dedication and usually chemical controls.
But the smell of controls, either in the form of artificial chemicals, organic substances or trap crops can be more unpleasant than many would want inside. Most insecticides don’t have pleasant odors. Even plant-based oils can be overpowering, and they are much more expensive than other types of chemical control.
In the end, each grower will have to weigh the pros and cons for his or her particular situation. Either form of vegetable gardening requires effort, but both bring great rewards when done well. There’s nothing quite like fresh vegetables for good taste and great health.