Type of Root: even though most vegetables are shallow-rooted, you should know that shallow-rooted veggies will require more watering rather than deeply rooted veggies.
Stage of Plant: young seedlings need to be watered frequently to thrive.
Climate: your surrounding climate will determine how often you should water your vegetable garden.
Indoor Potted or Outdoor Vegetable Plants: another factor to consider when watering your vegetable plant is if you plant indoors or outdoors.
Quality and Type of Soil: the quality and type of soil is another factor to consider. You should also know the type of soil you have.
Variety or Type of Vegetable: you need to know the variety of your vegetable plants so you can determine how much watering is required.
You should also observe your vegetable plants and soil as they can let you know if you are watering them adequately.
For instance, if you notice your vegetable leaves are wilting, it’s a sign watering is needed. Also, you can check some inches deep into the soil to feel for dryness or moisture.