Can anyone suggest best watering technique?

Hello friends. I own a coffee shop in Toronto. It is very difficult for me to water the plants regularly. After the household work, I didn't get much time to manage the garden. Last week due to my carelessness I lost some flowering plants. My garden includes ornamental and flowering plants. When I started gardening I was also interested in vegetable gardening. But the present situation does not allow me to do so. I need a watering technique that should be affordable. I had already booked the plumbing services in Toronto
( www.brothersplumbing.ca/services/ ) to repair the leaking pipes and faucets. If anybody recommends a better water technique I can discuss with them and can install it faster. It very difficult for me to see the week plants in my garden.
I will be very helpful if you recommend a method that suits all type of plants. I heard about drip irrigation and sprinkler irrigation. But I am not sure that it is a right solution for my problem. I should have to pay more on my water bill. I do not have that much land and plants. If I can overcome this issue I can start a vegetable garden soon.

Hmm, it's hard to suggest anything other than drip irrigation. It's the only way to water your plants when you're away from home. I, too, have a garden and a small vegetable plot. However, it is right in my yard, so I don't use drip irrigation and just water it regularly. It's very important to remember that each type of plant needs a certain regularity of watering. So if you really need to grow them, plant the ones that need less watering and get in there once in a while to do it. This is the most sensible solution. However, if you can't do that, use drip irrigation. More useful tips and suggestions considering gardening here .