Would it work if you bury the jug, say like 4-5 inches next to a plant..considering my plants are pretty large as it is..I don't want to harm them by having to dig' em up and stick a jug underneath them....Just curious...I have a hard time getting to my plants..not to hard..It's just a bit of a journey that I only manage to make once a week and sometimes every 2 weeks...But they do Ok.