I have two!!

My first pick is the "August Gardenia"...Huge flowers and hard to kill. Almost bug resistant! Good grower indoors too and does seem to do well even with little humidity.

Second..."Miami Supreme". A little harder to keep mites off and leaves do turn yellow more often. I little bit sensitive to watering needs and enviromental changes. Seems to need alot of humidity to perform it's best. But the flowers and leaves are so beautiful, especially in summer!! Both have very strong fragrance..:-)
Mike

'mystery' - beautiful flowers on a large, rounded shrub.
'august beauty' does produce so many flowers that the branches bend to the ground but they are individually smaller on my shrub than the ones on 'mystery'.

Miami Supreme...not sure its my favorite, but I have 3 of them. Two potted and one in ground. I also have one potted Dwarf "Radicans" Gardenia. I love the big, very fragrant flowers of the M. Supreme. I have never tried any other varieties so its hard to say what others are out there I might prefer. For now, I am very happy with these. Mike is right, you do have to stay on top of these as they are mealy(mites) magnets, LOL... I use Bayer's Advance 12 month Tree and Shrub inseticide on them. But they are outside 24/7...I also spray them with neem once in a while in between treatments.

Might be why they recommend this one for Florida...High Humidity we have...

Sources for Miami Supreme Gardenias?

Ebay for sure!!!

Paulope,

I bought mine at H. Depot, Lowes and Kmart! I'm sure Wally world has it too... All three are grafted(tree-shape)not bush type. If you are planting them in the ground, they recommend you buy the grafted ones, supposedly some gardenias are suceptible to nematodes...If you put them in containers, it shoudn't make a difference. For me,I prefer the tree shape.

Check out this link

Here is a link that might be useful: Miami Supreme Grafted