July/ August/ September flowers: Aster cordifolius (heart leaved aster), Aster macrophylla (large leafed aster), Aster divaricatus (White Wood Aster), Solidago caesia (blue stemmed goldenrod), Solidago flexicaulis (zig zag goldenrod), Helianthus divaricatus (woodland sunflower), Aralia racemosa (spikenard), Heuchera (coral bells), Chelone glabra (Turtlehead), Circaea lutetiana (EnchanterÂs Nightshade), Eupatorium rugosum (White Snakeroot) Interesting berries and foliage in summer/ fall: Maianthemum racemosum (False SolomonÂs Seal),Caulophyllum thalictroides (blue cohosh), Actaea rubra, Actaea pachypoda (Red and White Baneberry) Interesting foligage summer/ fall: Uvularia grandiflora (Bellwort), maidenhair fern, sensitive fern, Asarum canadense (ginger), Phlox divaricata (wild blue phlox), Dicentra exima (bleeding heart), Hydrophyllum virginianum (Virginia Water-leaf),Podophyllum peltatum (Mayapple),Thalictrum dioicum (Early Meadow-rue), Tiarella cordifolia (Foamflower), Waldsteinia fragarioides (Barren Strawberry)

I would wait until the natives are completely brown. Early spring might be a good time to spray, and even then I would be careful about spraying the natives.

hello...an alternate approach to get a head start might be described a bit here(outdoor growing environment)/sheltered from rain): Styroblocks- I used the 112/80 mil CopperBlock(Beaver Plastics;see pdf doc from Stewe & Sons,Inc.http://www.stewe.com.(The pic with sheared tops is how I did it to help manage foliar diseases)(Their product has been improved from what is described in the USDA Handbook 674;vol.5...I used both... A manually adjustable thermostic controlled heat mat. I used ProGro 22x60);Taylor soil temp. probe a bench system: I like those stackable plastic coated metal closet organizers. a registered hort. disinfectant and bottle brush; I used a pipe/mallet to core planting holes (slightly larger than the dia. of the cell); planted 4 to a grouping around a slight depression to aid in watering and a low analysis granular fert. The Granite Seed catalog rates soils;pH; PLS ad so on(though one should assess ecotype sources)...A useful text is Pop. Biology of Grasses(Cheplick,ed.) hello to froggy.. just visiting to catchup on LBS shoptalk

Thanks farmerdill. I’m currently a bit more north than you were. We have very high pest and disease pressures, I’m guessing from the year-round high humidity and hot summers. I think we have moles, and the roots are collateral damage. There are tunnels everywhere under the soil. I’m having a hard time catching them. I caught only one so far after a year: I can’t remember exactly when I sprayed last year, but used it undiluted, because I was trying to kill bamboo and other strong weeds. All four of these affected plants had mole holes exiting right next to the trunk, among other places. There was already a lot of die back before I sprayed anything, presumably from root damage. However, one grape vine is completely dead, and the peach tree is not waking from dormancy despite having buds. This is very strange behavior for mechanical root damage. Seems like a strange coincidence that it coincides with glyso spraying. I thought they may have absorbed it in the fall and been damaged, gone dormant and show the damage in the spring.