Not too close at all. And you're not going to have to worry about pruning for years.

Canary Bird, both the yellow sweetbriar and the hybrid xanthina. The sweetbrier doesn't appear to have made it to the USA yet. The hybrid xanthina is very difficult to find here. Rotes Phänomen, the purple/red rugosa, it is purple/red everywhere, including the stamens and inside the canes. R. foetida--the single form, I have the double 'Persiana' and love it. Nothing in rosedom more yellow! Schoener's Nutkana, which is a cross between the California native species R. nutkana and the hybrid perpetual Paul Neyron. SN was bred in California. Large plant and flowers (single medium to dark pink), repeat blooming in my area (botanic garden), shade tolerant, few thorns, lots of hips. And rust resistant unlike its parent Paul Neyron. R. hemisphaerica, the sulphur rose. Packed with petals. Very hard to get! Rosa cannabifolia, the hemp-leaved rose. A beautiful, and primitive, rare alba. Flowers look similar to R. fortuniana. White double flowers. Schön Ingeborg, an absolutely gorgeous light pink hybrid perpetual that Cliff Orent imported. Now to be found sporadically at Palatine. Very double. Suzanne, a double light pink spinisissima with the beautiful small foliage of that species. Gets big and bushy. Looks graceful and primitive. Missed getting it from Pickering (they sold out) a few years ago, then they dropped it from their catalog. Was on the waiting list at High Country Roses but their mother plant died. R. beggeriana, its big and bushy, with single white flowers, and reblooms. Produces plentiful black/purple hips which are good for wildlife. From hot, dry areas of the world. Lemon Light, a yellow seedling of the enormous tree-eating Kiftsgate but not quite as large. Used to be in the catalogs of Heirloom (and not seen anywhere else). Hope they offer it again. R. glutinosa, the pine-scented rose, a pink single. I like roses with either unusual scents in the foliage or flowers. Forestfarm grows it, but is out-of-stock. I've asked them to propagate it, so maybe 2014! Buttercup, a small yellow Austin, with flowers that resemble buttercups. I want it, but I don't want the RMV that would be inevitable should I purchase direct from Austin. Not readily available elsewhere, especially from any that virus index. R. horrida, it is, as its name implies, a horrible little thing! Loaded with thorns, the beasty suckers like mad, and thus appeals to me. White single flowers, sets copious hips. Good for wildlife food and safe haven. From the Caucasus. Paul Délépine, a stunning small polyantha I saw at Eurodesert. It is a sort of purpley pink. Very floriferous. Yellow Blush, a light yellow alba. Very double. I'll probably have to wait a good long time before this one is available.... Domine Sampson, a short light pinky lilac marbled hybrid spinossima. Melissa Here is a link that might be useful: Rotes Phänomen

Beautiful! It just calls out to you to see what's around the next bend. The way the colors, textures, heights blend with each other, it looks natural, only better.

Remove the turf. You don't want an uneven layer of decomposing (shrinking) stuff below astroturf. ...unless you eventually want a lumpy finished product.