Carl- they can be prone to Aphids, you're right. I water with a systemic at the beginning of the season and keep a close eye on them. I haven't had any this year yet. Keeping fingers crossed!
My biggest battle is with mildew. Thankfully I staved it off until after peak blooming season, but many of my plants are now in a rather sad state.
With the heat we've been having, I'm surprised they haven't got mites, but they're staying over on the roses and honeysuckle.
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