Thanks so much! I had considered hydrangea, too. We had some at our last house and they were beautiful. I think the lay of the land by our fence might be ideal for the moisture issue.
And they are stunning in bloom!

Glazed Orange Cake
We all have these mundane ing on hand but it took a master like French chef Pepin to turn them into haute patisserie. Pepin found a frozen pound cake, oranges and leftover mascarpone in the fridge (crème fraîche or sour cream would do). Jacques says impromptu dishes work out best.
Ingredients: 3 seedless oranges 1/2 cup mascarpone cheese 1 tablespoon sugar 1 pound cake (12 ounces), brown edges trimmed off all around, cut lengthwise into 3/4-inch slices 2 tablespoons Grand Marnier 1/2 cup orange marmalade A few fresh mint sprigs, for decoration
Instructions: peel the oranges, remove pith so the flesh is exposed then supreme them and reserve segments. Then squeeze the membranes to extract the juice (about 1/3 cup) and reserve. Mix the mascarpone cheese with the sugar.
Arrange pound cake slices side by side in bottom of glass platter nice enough to go to the dining room. Mix half the reserved orange juice with the Grand Marnier and sprinkle it on the cake slices. Spread the mascarpone on top and arrange the orange segments on top of the mascarpone.
GLAZE mix rest juice w/ orange marmalade; coat oranges.
Decorate w/ mint. W/ large spoon lift out cake to serve.
The 'Limelight' are a favorite. They're big, but airy. The blooms are HUGE and go from cream to lime green to pale pink. They dry beautifully, too.
