Well, I haven't got a clue about blackspot, but I surely can recommend a rose that looks like lilac charm -- Lavender Spoon. It does not get very much mildew, so maybe that's a good sign. But there's another big caveat here -- Lavender Spoon does not grow well on its own roots -- you MUST get it grafted. Burlington Roses sells it grafted on Pink Clouds, on which it does great.

Kathy

I can't think of any lilac big singles, except maybe Escapade? I haven't grown her, so the BS question remains.

I love Lavender Dream, too :)

I grow a little single with lots of lilac called Pink Posy. No BS; very easy rose.

http://www.helpmefind.com/rose/l.php?l=21.17769

Not a single but worth a mention, perhaps, is also Sweet Pea. Great rose! (link below)

Here is a link that might be useful: Sweet Pea on HMF

Aaaaah, Escapade-- not BS resistant but I have it anyway. It makes a graceful plant but I am beginning to suspect it would be happier in a much colder climate. I grew it in Texas and again here and even in her 3rd year she's not much of a shrub yet.

OMG Sweet Pea is just lovely. Reminds me of Sweet Chariot which is listed as a mini-- the blooms are, the plant is NOT. Sweet Chariot can grow to 4 feet wide.

Of course in the heat we don't see the best of the purple tones but early spring & fall are delightful!

I have six plants of Mr. Bluebird since I love this rose so much. It has China heritage and was bred by Ralph Moore, I believe, and seems to bloom all the time. It's very hot and dry here but my plants are young so I don't know how they'll fare in the heat of summer. Their color is gorgeous though, and with their five petals they look so cute and really go with everything. I have little disease so can't comment on that. I bought my plants at Rogue Valley nursery, by the way. They're very bushy and have beautiful foliage.

Ingrid