Below are a selection of plants that are in trials.
Achillea umbellata 203139
Bulbine capitata 172150
Bulbine narcissifolia 182227
Centranthus lecoqii 211806
Clematis terniflora v. mandshurica 194767
Elymus glaucus 221321
Erigeron aff. peregrinus (E. formosissimsus) 211859
Globularia stygia 081470
Gomphostigma virgatum 181770
Helichrysum aureum v. monocephalum 161146
Inula verbascifolia 171225
Jamesbrittenia jurasica 182261
Kniphofia ichopensis A 211809
Kniphofia ichopensis B 211811
Kniphofia ichopensis C 211810
Oenothera caespitosa (colony forming form)
Opuntia 'Chocolate Princess' 220408
Opuntia 'Crystal Tide' 220407
Penstemon strictus (Cindy form) 203535
Poa secundifolia ssp. juncifolia 221320
Rudbeckia missouriensis x fulgida 211803
Rudbeckia x 'bhsxrudffm#1 202239
Rudbeckia x BHSXRUDFFM#2 202240
Rudbeckia x 'Sweet as Honey' 211805
Salix humilis 183614
Salvia Farinacea (Bryan Fischer form)
Salvia reptans White 202108
Below are Plants still in trials that should not be forgotten
Agastache 'orange to pink' 184149
Carex sprengelii 194415
Conoclinium coelestinum 194408
Penstemon strictus (compact form) 194406
Pycnanthemum flexuosum 162683
Sideritis syriaca C (Jameson selection)
Teucrium cossonii 'Harlequin's Silver' 194394
Verbascum 'Letitia' 152073