Grenada is an earlier bearing pomegranate than Wonderful, so just based on that I'm going to say it's probably not quite as good as Wonderful. Grenada supposedly has less tartness than Wonderful also, which I am going to assume means a little less flavor. The blossoms of Grenada are a deeper red color, and the exterior of the fruit also tends to be slightly deeper red color than Wonderful, so that could be one factor if you are planting the pomegranate for ornamental reasons.

By the way, the Dave Wilson nursery site states that 'Grenada' is a bud mutation of 'Wonderful'. This could be slightly relevant because normally if you plant two different varieties near each other, the fruit yield on each will increase by about 50 percent, but this may not be the case if the two varieties in question are very closely related to each other.

I grow 4 varieties including Wonderful. It is my least favorite of the four (still good though, just others are better). There are higher rated varieties with softer seeds (parfianka, desertnyi or a fully sweet type if you already have sweet/tart types) I would get one of them instead.

Melikeeatplants which of those is the most cold hardy?

They are all hardy here in meek 9b. Maybe some east coast growers can chime in on hardiness as they have the issues with it....

I can only speak about 'Wonderful', and mention that it's a winner in my locale. I keep mine to about seven feet tall by Winter and Summer pruning. It's a stunning tree in bloom and the fruit is excellent and good sized. IMHO, 'Wonderful' gets an undeserved bad rap by some people.

In bloom:

After Winter pruning:

Fruit:

Thanks Clint, what do you feed yours? Iirc you're in Florida so we should have similar climates, meaning I can grow one. Do the leaves or fruit have issues with the humidity?

I'm in So Cal. I use Gro-Power flower n bloom, compost and mulch in the Spring (if I get a chance). Otherwise, I just mulch.

http://gropower.com/product_pages/flower_bloom.htm

Oh okay, that's a lot of phosphate and potassium relative to nitrogen. What do you usually fertilize with, pine bark?

Gro-power is the fertilizer, and I use a pretty light hand. I want flower production and fruit set as opposed to vegetative growth. All gardening is local, and Gro-power products work very well here in So Cal (recommended by Dave Wilson Nursery for backyard orchard culture). Too much nitrogen is the enemy when you're controlling vigor with pruning. My pom beds have redwood bark mulch out beyond the dripline and free municipal mulch within the dripline.

I just purchased my first organic Wonderful pomegranate tree. Are there pest I should look for and does anyone have an organic tree and using organic fertilizer and pest repellents?

If you are in a dry climate they usually are low/maintenance free. All I did was fertilize in the spring and had drip lines giving water during our dry summers. If you are in a humid climate you may have fungal problems.