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UC Davis Plant Index

These are all the plants evaluated at UC Davis since 2005.

  • Plants are listed alphabetically by scientific name. Plants were evaluated in full sun or under 50% shade cloth.
  • All plants were evaluated in Davis, CA (WUCOLS Region 2).
  • The best average Overall Appearance rating a plant received during the treatment season is listed as Mean O/A Score (based on a 1-5 scale, where 5 is highest).
  • NA = not appropriate; NR = not rated; BR = trialed before O/A rating began; NC = not collected due to high plant mortality.
  • Each plant is classified according to WUCOLS IV Categories of Water Needs- H: High; M: Moderate/Medium; L: Low; NA: Not Appropriate for this region (See the Nuts and Bolts tab for details on how the recommendation was determined.)
  • * Plants receiving an overall appearance rating of 3 or less are not recommended in this area under these irrigation conditions.
  • ** Plants that performed poorly in full sun, but if used, some shade is suggested.
  • printer friendly pdf version: UC Davis Plant Index
Scientific Name Common Name Exposure Mean O/A Score WUCOLS Category Trial Year
Abelia x grandiflora 'Wevol' (Linnaea x grandiflora) Bella Donna abelia 50% Shade 2.5 M 2018
Abelia x grandiflora ‘Abelops’ (Linnaea x grandiflora) Sunshine Daydream Abelia 50% Shade 4.4 L 2011
Acacia boormanii Snowy river wattle Sun 4.9 L 2009
Acacia cognata 'ACCOG01' Cousin Itt Little River wattle Sun NC NA 2016
Agonis flexuosa 'Burgundy' Burgundy peppermint willow Sun NC NA 2016
Aquilegia eximia Serpentine columbine Sun BR M 2007
Arctostaphylos densiflora 'Howard McMinn' Howard McMinn manzanita Sun 3.8 M 2013
Aster ‘Purple Dome’ Purple Dome New England aster Sun 4.2 M 2011
Berberis aquifolium 'Compacta' Compact Oregon grape 50% Shade 4 M 2013
Bouteloua gracilis Blue gramma grass Sun BR L 2007
Bouteloua gracilis 'Blonde Ambition' Blonde Ambition blue gramma grass Sun 4.2 L 2016
Buddleia ‘Podaras #8’ Flutterby Petite® Blue Heaven butterfly bush Sun 4 M 2011
Buddleia ‘Purple Splendor’ Purple Splendor butterfly bush Sun 4.3 L 2014
Buddleia 'Podaras #13' Flutterby Petite™ Tutti Fruitti butterfly bush Sun 3.9 H 2014
Buddleia × 'SMNBDBT'  Pugster Blue™ butterfly bush Sun 4.1 L 2020
Bulbine ‘Tiny Tangerine’ Tiny Tangerine cape balsam Sun 4.6 L 2011
Calamagrostis × acutiflora 'Karl Foerster' Karl Foerster feather reed grass Sun 4.2 L 2013
Carex spissa San Diego sedge Sun BR L 2007
Ceanothus × pallidus 'Marie Simon' Marie Simon ceanothus Sun 4.4 L 2009
Ceanothus 'Concha' Concha California lilac Sun 3.9 L 2014
Ceanothus griseus var. horizontalis 'MATCEA01' Highlights™ ceanothus 50% Shade 3.8 L 2018
Ceanothus maritimus ‘Valley Violet’ Valley Violet California lilac Sun BR L 2007
Cerastium tomentosum Snow-in-summer Sun 3.1 L 2013
Ceratostigma plumbaginoides Dwarf plumbago 50% Shade 3.3 L 2013
Ceratostigma plumbaginoides Dwarf pumbago Sun 3.9 H 2013
Cercocarpus betuloides var. blancheae Island mountain mahogany Sun 4.4 L 2009
Chondropetalum tectorum Small cape rush Sun 4.3 L 2015
Cordyline ‘Purple Sensation’ Cabbage Tree Sun 2.6 L 2011
Correa pulchella 'Pink Eyre' Pink Eyre Australian fuchsia 50% Shade 4.1 L 2015
Cotinus coggygria 'NCC01'  Winecraft Black® smokebush Sun 3.3 L 2020
Cyrtomium falcatum Japanese holly fern 50% Shade 3.7 L 2013
Daphne odora 'Aureomarginata' Variegated Daphne 50% Shade 3.3 L 2013
Delosperma cooperi Hardy ice plant Sun 4 L 2013
Dianella caerulea 'DBB03'  Cassa Blue flax lily Sun 4 M 2015
Dianella caerulea 'John316'  King Alfred flax lily 50% Shade 4 M 2015
Dianella revoluta 'Allyn-Citation' Coolvista™ Dianella Sun 4.2 L 2019
Dianella revoluta 'DR5000' Little Rev™ flax lily Sun 3.6 L 2018
Dianthus 'KLEDG10119' EverLast™ Orchid dianthus Sun 3.6 M 2014
Dietes bicolor 'African Gold' Pure Gold® African iris Sun 4.1 L 2018
Distylium 'Vintage Jade'** Vintage Jade distylium Sun 2.3 M 2018
Distylium 'Vintage Jade' Vintage Jade distylium 50% Shade 3.8 M 2019
Elaeagnus x ebbingii 'Viveleg'
Olive Martini™ elaeagnus Sun 4.5 L 2019
Epilobium 'Sidewinder' Sidewinder California fuchsia Sun 4.2 L 2014
Epilobium 'Sierra Salmon' Sierra Salmon California fuchsia Sun 3.7 L 2014
Eremophila glabra 'EREM1'  Grey Horizon™ emu bush Sun 3.0 L 2020
Escallonia fradesi ‘Jamie’  Pink Whisper Escallonia Sun 2.7 M 2011
Eucomis 'Leia' Leia pineapple lily Sun 3.2 L 2016
Fallugia paradoxa Apache plume Sun BR M 2007
Festuca californica California fescue 50% Shade 3.7 L 2013
Geranium 'Gerwat' Rozanne geranium Sun 3.7 M 2014
Geranium x cantabrigiense 'Biokovo' Biokovo cranesbill 50% Shade 3.3 L 2017
Grevillea 'Kings Celebration' Kings Celebration grevillea Sun NR NA 2019
Grevillea 'Kings Fire' Kings Fire grevillea Sun 4.8 L 2019
Hamelia patens Sierra Red™ Sierra Red™ firecracker bush Sun 3.8 M 2020
Helichrysum amorginum 'Blorub' Ruby Clusters strawflower  Sun 3.6 M 2014
Helleborus ‘Red Lady’ Red Lady Lenten rose 50% Shade 3.3 M 2011
Hesperaloe parviflora 'MSWNPERED'  Sandia Glow® red yucca Sun 3.7 L 2020
Heuchera maxima Island alum root 50% Shade 4 L 2011
Heuchera 'Rosada' Rosada coral bells Sun BR M 2007
Hydrangea paniculata 'LeeP1' White Wedding® hydrangea 50% Shade 3.3 M 2020
Hydrangea paniculata 'Renhy' Vanilla Strawberry™ hydrangea 50% Shade 3.7 M 2019
Hydrangea quercifolia 'BIV01' Tara™ oakleaf hydrangea 50% Shade 3.1 L 2020
Hypericum androsaemum ‘Seifire' Ignite Red St. John's wort 50% Shade 4.2 L 2011
Hypericum kalmianum 'Deppe' Sunny Boulevard® St. John's wort Sun 4 L 2020
Illicium parviflorum ‘PIIIP-I’ BananAppeal® small anise tree 50% Shade 2.4 H 2018
Iris 'Canyon Snow' Canyon Snow Pacific hybrid iris Sun 3.9 M 2009
Isomeris arborea Bladderpod Sun 3.6 L 2013
Kniphofia 'Christmas Cheer' Christmas Cheer red hot poker Sun 3.3 M 2013
Kniphofia 'Elvira' Elvira red hot poker Sun 3.3 M 2014
Lagerstroemia indica 'Conlagras' Bellini® Raspberry crape myrtle Sun 3.8 L 2019
Lagerstroemia indica 'Deleb' Delta Eclipse™ crapemyrtle Sun 4.1 L 2018
Lagerstroemia 'Purple Magic' Purple Magic crapemyrtle Sun 4.1 L 2018
Laurus nobilis 'MonRik'  Little Ragu® sweet bay Sun 2.4 L 2020
Lavandula allardii 'Meerlo' 'Meerlo' lavender Sun 4.4 L 2019
Leucophyllum langmaniae 'Lynn's Legacy' Lynn's Legacy Texas ranger Sun 4.8 M 2009
Ligustrum sinense ‘Sunshine’ Sunshine privet 50% Shade 4.8 L 2011
Lippia 'ECOLOPIA2'  Pink Kurapia® Sun 4.5 L 2020
Lippia nodiflora 'Campagna Verde' Kurapia  Sun 4.2 L 2014
Lippia nodiflora 'New White' New White kurapia Sun 4.5 L 2018
Lomandra confertifolia ‘Finescape’* Finescape mat rush Sun 2.2 L 2017
Lomandra confertifolia 'Seascape' Seascape mat rush Sun 3.2 M 2011
Lomandra confertifolia 'Seascape' Seascape mat rush 50% Shade NR NA 2017
Lomandra fluviatilis 'ABU7' Shara™ mat rush Sun 3.7 L 2018
Lomandra longifolia 'Katrinus Deluxe' 'Katrinus Deluxe' mat rush 50% Shade 4.3 L 2020
Lomandra longifolia 'LM300' Breeze™ dwarf mat rush 50% Shade 4.2 M 2018
Lomandra longifolia 'LM300' Breeze dwarf mat rush Sun 2.8 L 2015
Lomandra longifolia 'Lomlon' Lime Tuff dwarf mat rush 50% Shade 4.5 L 2015
Lomandra longifolia 'Lomlon' Lime Tuff dwarf mat rush Sun 4.2 L 2014
Lomandra longifolia 'Roma13' Platinum Beauty™ lomandra 50% Shade 4.1 L 2017
Lonicera periclymenum 'Inov 86' Peaches and Cream honeysuckle Sun 3.4 M 2014
Loropetalum chinense 'Peack' Purple Pixie Loropetalum 50% Shade NC NA 2016
Lygeum spartum False esparto grass Sun 4.5 L 2017
Mahonia (Berberis) eurybracteata 'Soft Caress'  Soft Caress mahonia 50% Shade 3.9 M 2016
Mahonia media 'Marvel' 'Marvel' mahonia 50% Shade 3.6 L 2019
Mimulus ‘Curious Georgie Boy’ Georgie yellow monkeyflower Sun 3.2 L 2011
Miscanthus sinensus 'Little Zebra' Little Zebra dwarf Japanese silver grass Sun 4 M 2014
Muhlenbergia capillaris 'Irvine' Plumetastic® pink muhly grass Sun NC NA 2019
Muhlenbergia capillaris 'White Cloud'* White Awn muhly Sun 2.4 H 2017
Muhlenbergia dubia Pine muhly Sun 4.3 L 2009
Muhlenberiga reverchonii 'PUND01S' Undaunted™ ruby muhly Sun 4.2 L 2017
Nandina domestica 'Lemon-Lime' Lemon Lime Nandina 50% Shade 3.5 L 2017
Nandina domestica 'Sunset Boulevard'** Sunset Boulevard Nandina Sun 2.5 L 2018
Neomarica caerulea Walking iris 50% Shade 3.9 L 2013
Osmanthus heterophyllus ‘Purpureus’ Fragrant olive 50% Shade 4.4 M 2011
Ozothamnus leptophyllus 'Silver Cape' Silver Shore cottonwood Sun 3.9 L 2016
Penstemon heterophyllus 'Margarita BOP' Margarita B.O.P foothill penstemon Sun 4.8 L 2009
Phlomis purpurea Purple Phlomis Sun 3.7 L 2013
Phlox 'PHL090201'
Paparazzi 'Jagger' Phlox Sun 2.3 M 2015
Phlox 'PHL090401' Paparazzi 'Levine' Phlox Sun 2.1 M 2015
Phlox 'PPPHL0623' Paparazzi 'Adele' Phlox Sun 2.2 M 2015
Prunus illicifolia Hollyleaf cherry Sun 3.8 M 2015
×Pyracomeles 'NCXP1'  Juke Box® pyracomeles Sun 4 L 2020
Rhagodia spinescens 'SAB01' Aussie Flat Bush™ saltbush Sun 4 L 2020
Rhaphiolepis indica 'Parhap' Oriental Pearl Indian hawthorn Sun 3.8 L 2020
Rhaphiolepis indica 'sPg-3-003' Redbird™ Indian hawthorn Sun 2.7 L 2020
Rhaphiolepis umbellata 'RutRhaph1'* Southern Moon® yedda hawthorn Sun 3 L 2019
Rhododendron 'Conleb' Autumn Embers™ Encore® azalea 50% Shade 2.5 M 2016
Rhododendron 'Conlec' Autumn Royalty™ Encore® azalea 50% Shade 3.4 M 2016
Rhododendron 'Robleza' Autumn Bonfire™ Encore® azalea 50% Shade 3.6 M 2019
Rhus ovata Sugar bush Sun 4.2 M 2015
Ribes viburnifolium Evergreen currant 50% Shade 4.9 L 2011
Ribes viburnifolium 'Spooner's Mesa' Spooner's Mesa evergreen currant 50% Shade 4.2 L 2015
Rosa 'AUSHOUSE' Harlow Carr rose Sun 3.1 L 2016
Rosa 'Baillim' Chi™ rose Sun 3.9 L 2020
Rosa 'KORbatam' Winter Sun™ Eleganza® rose Sun 3.4 L 2018
Rosa 'Korbin’ Iceberg rose Sun 4.2 M 2011
Rosa 'KORdiagraf'* Dark Desire™ Parfuma® rose Sun 3 H 2017
Rosa 'KORelamba' Bordeaux® rose Sun 3.9 M 2016
Rosa 'KORfizzlem' Lemon Fizz Kolorscape® rose Sun 3.6 L 2020
Rosa 'KORfloci01' Cream™ Veranda® rose Sun 3.7 M 2015
Rosa 'KORsixkono' Kardinal Kolorscape® rose Sun 4.1 L 2015
Rosa 'KORsteimm' Lone Star® rose Sun 3.7 M 2016
Rosa 'KORvodacom' Plum Perfect™ Sunbelt® rose Sun 2.3 L 2017
Rosa 'Meidrifora' Coral Drift® rose Sun 3.8 L 2016
Rosa 'Meigalpio' Red Drift® rose Sun 3.9 M 2016
Rosa 'Meiggili' Peach Drift® rose Sun 3.8 L 2020
Rosa 'Meijecycka' Limoncello™ rose Sun 4.1 L 2019
Rosa 'Meijocos' Pink Drift® rose Sun 3.9 L 2016
Rosa 'Meikokan' Tequila Supreme® rose Sun 3.5 L 2018
Rosa 'Meimirrote' Apricot Drift® rose Sun 3.9 L 2020
Rosa 'Meiradena' Icecap™ rose Sun 4.4 L 2017
Rosa 'Meisentmil' Lemon Drift® rose Sun 3.6 L 2018
Rosa 'Meitraligh' Brick House™ rose Sun 4.1 L 2019
Rosa 'Meizorland' White Drift® rose Sun 4.0 L 2017
Rosa 'NOA168098F' Pink SupremeFlower Carpet® rose Sun 4 L 2020
Rosa 'Pink Grüss an Aachen' Pink Grüss an Aachen rose Sun 3.6 M 2013
Rosa 'Radcon' Pink Knock Out® rose Sun 4.3 L 2018
Rosa 'Radgor' Peachy Knock Out® Sun 3.8 M 2017
Rosa 'Radral' Coral Knock Out® rose Sun 2.7 NA 2020
Rosa 'Radsunny' Sunny Knock Out® rose Sun 3.4 L 2017
Rosa 'Radtko' Double Knock Out® rose Sun 4 L 2017
Rosa 'Radwhite' White Knock Out® Sun 4.3 L 2019
Ruellia 'Mayan Pink' Mayan Pink Mexican petunia Sun 3.4 L 2016
Ruellia 'Mayan Purple' Mayan Purple Mexican petunia Sun 3.9 L 2016
Ruellia 'Mayan White' Mayan White Mexican petunia Sun 3.4 L 2016
Ruschia lineolata 'Nana' Dwarf carpet of stars Sun 3.4 L 2020
Salvia microphylla 'Hot Lips' Hot Lips sage Sun 4 M 2013
Sambucus nigra 'Eiffel 1' Black Tower elderberry Sun 3.6 L 2016
Saponaria × lempergii 'Max Frei' Soapwort Sun 3.9 M 2009
Sedum palmeri* Palmer's sedum Sun NC NA 2009
Solanum xanti 'Mountain Pride'* Mountain Pride purple nightshade Sun 3.2 M 2015
Sollya heterophylla Australian bluebell creeper 50% Shade 3.9 L 2013
Sporobolus wrightii Giant sacaton Sun 4.4 L 2017
Tecomaria capensis Riot Red® Riot Red® Cape honeysuckle Sun 3.2 L 2020
Teucrium chamaedrys 'Prostrata'  Dwarf germander Sun 4.2 M 2013
Teucrium fruticans 'Azureum' Bush germander Sun 3.9 L 2013
Trachelospermum ‘Sassy’** Sassy Sarsparilla star jasmine Sun NC NA 2014
Trachelospermum ‘Sebra’ Star of Toscane jasmine 50% Shade 3.6 M 2011
Tulbaghia 'Ashanti' Ashanti society garlic Sun 3.7 L 2018
Vitex agnus-castus 'Bailtextwo' Galactic Pink® chastetree Sun 3.6 L 2020
Vitex agnus-castus ‘PIIVAC-I’ Delta Blues™ chastetree Sun 4.3 L 2018
Vitex x hybrida 'Bailtexone' Flip Side® chastetree Sun 4.4 L 2019
Westringia fruticosa 'NFL25' Mundi coast rosemary Sun 3.7 L 2018
Woodwardia fimbriata Giant chain fern 50% Shade 3.9 H 2011