What do you mean by a "complete" fertilizer? In fertilizer terms, a 'complete' fertilizer is just one that offers all of the three major nutrients - N, P. & K - and those are not difficult to find at all. In fact, virtually all water soluble fertilizers suitable for containers will be 'complete' fertilizers :-)

If you want one that offers a full range of micronutrients along with the macros, then look to one of the Dyna Gro products, like Foliage Pro or GROW. These provide all necessary plant nutrients to encourage flowering and fruiting as well as for overall plant health.

Personally, I use GROW on all my containers both indoors and out, and that includes veggies and fruiting plants. I realize very nice harvests with this product.

You don't really need to have a special fertilizer to produce fruit. So-called specialty fertilizers really do not offer anything extra - all you need is good full range fert in the proper proportions.

Thank you! When I say complete I meant with micro and trace elements (as you figured out). "Grow" sounds like a great Fertilizer. I plan on adding Kelp and other sea nutrients as well.

I have probably 100 fruit trees in 15 gal pots and I use Osmocote Plus and Foliage Pro. Either will work really well. I have also used Vigoro Fruit from Home Depot and it's a lot cheaper but a good mid-range fertilizer. Lots of options out there :)

Thanks Jay. I try not to use any product made by Scotts so Osmocote is out. There seems to be some awesome hybrid fertilizers out there that look great too.