My mint actually seems to be just getting started. It has had unusually small leaves and is just now looking more typical.
Chives are doing well.
My dill is borderline as it has been all along. My water is just too acidic for dill and I don't check it often enough. I correct it. The dill gets health then it gets sickly again, I check the pH and fix it again. And repeat.
Italian and curly parsley are doing OK. They were really great until my wife harvested the heck out of them.
The Thai and Italian basil have both grown up to the lights many times and I have to cut them back constantly. The Thai basil has tried to flower many times and only cutting it back quite a bit has kept it from happening. I suspect my basil is getting older and may not last forever. Anyone know the lifespan of basil?
140 day is pretty good. Many people keep then going and going for long periods of time which is wonderful. I myself grow for a few months then I start fresh. Maybe it is me getting bored or just wanting new.
Regardless, as long as you keep the water changes and the plants look and taste good I say keep them going. Once they start to get bitter or thin out is when I end and start a new one.
I am going to keep it going as long as I can, but maybe change things out now and then. I am trying to grow some cilantro to replace the dill. So far two seeds out of two dozen have germinated. I hope they survive. I have basil from cuttings to replace any that die. I am not sure if cutting plants are equal to new plants grown from seeds.
177 days in with the 9 pod herb garden in the AG Bounty Elite. (This was my first AG and my first grow. I now have six. Am I an addict? )
The thyme and dill are long dead. The dill never did well (I figured out that it does not like acidic water). The Thyme thrived but for some reason the roots started to rot and it died. My wife didn't use them for cooking so no big loss.
I replaced the dill with Vietnamese Coriander – Rau Răm. It is doing well.
I had tried to replace the thyme with cilantro, but all the cilantro I have tried to grow has died. I just ordered AG cilantro pods, hopefully they work better than seeds or cuttings. The cuttings grew roots but no new leaves and eventually died.
My chives are as healthy as ever but have never produced much for eating. My wife has her own growing in a pot, so they have not been used much.
My Thai basil has pretty much had it. I keep cutting but it wants to flower. The stems are turning purple and its looking sickly. Cuttings from it also seem to know they are old and are pushing to flower too. I have an other Thai basil pod in another AG and will replace it soon.
My Genovese basils still look OK but most of the growth is up at the lights. It is harder and harder to find a good spots to cut it back where it will have new growth. I have plants in Kratky grown from cuttings and will replace these one too, but not until I have to.
The parsley is looking rather old (both Italian and curly). Maybe we harvested too much and/or it is just past its prime. I need to replace them.
The garden is still going but it is no longer beautiful. I hope to restore one plant at a time rather than starting over from scratch. Mostly because my wife uses a lot of basil and expect me to keep her supplied.
Joes, I can not help you much in how long as for me, my personal growing for herbs last maybe two months or three tops. Why? Because they can thin over time and go to seed if not cared for. I tend to use a lot. But I also freeze mine so I always have on hand. It may not be bright green and fresh. However frozen fresh is just as tasty and strong as the fresh, only will get mushy if not used frozen. I use these in sauces, soups, even some salad dishes and in really in anything that does not need a fresh pristine leaf.
Also I do not mind starting over. I kinda like it. As for wanting fresh at all times, if she likes basil, why not stagger the growing so when one hits about a month old, you start more and then then that is a month you start more. This way when the first is ready to be restarted you have two others to reply on until this one grows. Just a thought