everyone missed the more important point .....Size of the plant.......this will indicate watering needs....big plants more water......just buy a tuferware container 120 llters or biger and let it collect water until later in the Veg cycle when you need it.....also buy some water cyrstals or water polyomers (whatever there called in your area).....they expand and retain water like 100 to 400 times there size....very effective .....last pc of advice .....get lots of leaves and cover the soil with this ...this is also very effective