I have all three. Moderate grower would be Perdita. LA is a largeish fountain, a little thin on foliage. Windermere is very tall and mostly vertical in growth, easily over 7' if not regularly cut back. Perdita is the rounded fully foliaged shrub of 4x4.

Fragrance? Windermere, hands down. Wonderful fragrance, citrus-y. Perdita has a little, LA almost none.

Bloom production? In this order, most first: Windermere, Perdita, and lagging far behind, LA, which is stingy.

Heat tolerance--probably Perdita first, then LA. Windermere has very ephemeral flowers with tissue paper thin, delicate petals.

Beauty of flower---Windermere, then Perdita, then LA.

And no, you don't need all three.

This post was edited by hoovb on Sun, Dec 8, 13 at 17:28

Thank you, hoovb! That is just the type of response I was hoping for. Very helpful! From what you've said, I think I'm going to go with Perdita. I had originally planned on ordering that one, but the other two looked so inviting looking out from the DA catalogue that they got me thinking...... So, for size, heat tolerance and for coming in second in bloom production and beauty of bloom -- Perdita it is. Thanks again!