Orchidflower
Thinks s/he gets paid by the post
- Joined
- Mar 10, 2007
- Messages
- 3,323
Yep, from what I've read and my two years of experience, you'll get 4-5 years from the potting mix. The only thing you'll need to buy next year is the fertilizer.
If you are growing tomatoes, you'll also need to add some calcium to prevent blossom end rot. .
I went to a talk the other night about growing herbs in Phoenix--but it was mainly for those that have actual dirt in their yards and not all gravel like mine. Regardless, the Ph.D. (degree in something to do with plants and herbs) said that you can get calcium for your plants from plain old egg shells.
She also said that rosemary is a plant that needs calcium, also, so egg shells it is.
Seems to me you could put egg shells in your tomato soil then, too.