habranthusHabranthus tubispathus (Habranthus andersonii, Habranthus texanus)Bulb- NCM
- CVM
- SCM
- SIM
- HD×
- LD×
Plants starting with H: water needs by California climate zone
Each plant shows its water use rating for each of the six California climate zones. Minutes opens the sprinkler calculator with the plant and a climate city preset.
habranthusHabranthus tubispathus (Habranthus andersonii, Habranthus texanus)Bulb
hairy awn muhlyMuhlenbergia capillaris ssp. & cvs.Ornamental grass- NCL
- CVM
- SCL
- SIL
- HDM
- LDM
hairy canary cloverDorycnium hirsutumShrub- NC×
- CVM
- SCL
- SI?
- HD?
- LD?
hairy Darling peaSwainsona greyanaShrub- NCL
- CV?
- SC?
- SI?
- HD?
- LD?
hairy golden asterHeterotheca villosa (Chrysopsis villosa)Perennial, California native- NCL
- CVM
- SCL
- SIL
- HD?
- LD?
hairy gum plantGrindelia hirsutulaPerennial, California native- NCL
- CVL
- SCVL
- SIL
- HD?
- LD?
hairy lip fernCheilanthes lanosaPerennial- NCM
- CV?
- SCL
- SI?
- HD?
- LD?
hairy Matilija poppyRomneya trichocalyxPerennial, Shrub, California native- NCVL
- CVVL
- SCVL
- SIVL
- HD?
- LD?
Hairy Mountain MahoganyCercocarpus breviflorusTree- NCVL
- CVL
- SCL
- SIL
- HD?
- LD×
hairy poppyPapaver pilosumPerennial- NCL
- CV×
- SCM
- SI?
- HD?
- LD?
hairy seed false goldfieldsBahia absinthifoliaGround cover- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
hairy wattleAcacia vestitaShrub- NC?
- CVL
- SCL
- SIL
- HD?
- LD?
hairy wedeliaWedelia texana (Zexmenia hispida) ssp. & cvs.Shrub- NCM
- CV?
- SCL
- SI?
- HDL
- LDM
hakone grassHakonechloa macra and cvs.Ornamental grass- NCM
- CVM
- SCM
- SI?
- HD?
- LD?
halimiocistusX Halimiocistus wintonensisShrub- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
Hall's HoneysuckleLonicera japonica 'Halliana'Vine- NCM
- CVL
- SCM
- SI?
- HDM
- LDM
hammock fernBlechnum occidentalePerennial- NCM
- CV?
- SCM
- SIH
- HD?
- LD?
hard shield fernPolystichum aculeatumPerennial- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
- NCM
- CV?
- SC?
- SI?
- HD?
- LD?
Hardstem BulrushSchoenoplectus (Scirpus) acutusCalifornia native- NC?
- CV?
- SCM
- SIM
- HD?
- LD?
hardy alyssum/basket of goldAurinia saxatilisPerennial- NCL
- CVL
- SCM
- SIM
- HD?
- LD?
hardy begoniaBegonia grandisPerennial- NCM
- CVM
- SCM
- SIM
- HD×
- LD×
hardy cyclamenCyclamen coum (shade)Bulb- NCL
- CV?
- SC?
- SI?
- HD?
- LD?
hardy eucryphiaEucryphia glutinosaTree- NCM
- CV?
- SC?
- SI×
- HD?
- LD?
hardy fuchsiaFuchsia magellanicaShrub- NCM
- CVM
- SCM
- SIH
- HD×
- LD×
hardy gloxiniaIncarvillea delavayiPerennial- NCM
- CVH
- SCM
- SI?
- HD?
- LD?
hardy ice plantDelosperma cooperi ssp & cvs.Ground cover, Arboretum All-Star- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
hardy petuniaRuellia elegans 'Ragin Cajun'Perennial- NC?
- CV?
- SC?
- SIM
- HD?
- LD?
hardy/straw foxgloveDigitalis luteaPerennial- NCM
- CVM
- SC?
- SIM
- HD×
- LD×
Harlequin flowerSparaxis spp.Bulb- NCVL
- CVM
- SCVL
- SIVL
- HD?
- LD?
harlequin glory bowerClerodendrum trichotomumShrub, Tree- NCM
- CVM
- SCM
- SI?
- HD?
- LD?
Harry Lauder's walking stickCorylus avellana contortaShrub- NCM
- CVM
- SC×
- SI×
- HD×
- LD×
Hart's tongue fernAsplenium scolopendrium (Phyllitis scolopendrium)Perennial- NCL
- CV?
- SC×
- SI×
- HD×
- LD×
Hartweg's Iris, Rainbow IrisIris hartwegiiPerennial, California native- NCL
- CV?
- SC?
- SIM
- HD?
- LD?
Havard AgaveAgave havardianaSucculent- NCVL
- CVVL
- SCL
- SIVL
- HDVL
- LDVL
Hawaiian Blue EyesEvolvulus ruttalianusPerennial- NCM
- CVM
- SC?
- SI?
- HDL
- LD?
Hawaiian elf scheffleraSchefflera arboricolaShrub- NC×
- CV×
- SCM
- SIH
- HD×
- LD×
Hawaiian snow bushBreynia nivosa (distacha)Shrub- NC?
- CV?
- SCH
- SIH
- HD×
- LD×
Hawaiian tiCordyline fruticosa (Cordyline terminalis)Shrub- NCM
- CV×
- SCH
- SI×
- HD×
- LD×
Hawaiian tree fernCibotium glaucumPerennial- NC×
- CV×
- SCH
- SIH
- HD×
- LD×
haworthiaHaworthia spp.Perennial, Succulent- NCL
- CVL
- SCL
- SIL
- HD×
- LDL
hawthornCrataegus spp. & cvs. (Native and non-native species)Tree, California native- NCM
- CVM
- SCM
- SIM
- HDM
- LD×
hawthorn mapleAcer crataegifoliumTree- NCM
- CV?
- SC?
- SI?
- HD?
- LD×
heart leaf fernHemionitis arifoliaPerennial- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
heart of fireBromelia balansaePerennial- NCM
- CV?
- SCL
- SI?
- HD?
- LD?
Heart's Desire ceanothusCeanothus gloriosus 'Heart's Desire'Ground cover, California native- NCL
- CVM
- SCL
- SIM
- HD×
- LD×
heartleaf bergeniaBergenia cordifoliaPerennial- NCM
- CVM
- SCM
- SIM
- HD?
- LD×
heartleaf geraniumPelargonium cordifoliumPerennial- NCM
- CVM
- SCM
- SIM
- HD×
- LD×
heartleaf robinsonellaRobinsonella cordataTree- NC?
- CV?
- SCM
- SI?
- HD?
- LD?
heathErica spp.Ground cover, Shrub- NCM
- CVM
- SC×
- SI×
- HD×
- LD×
heath melaleucaMelaleuca ericifoliaTree- NCL
- CV×
- SCL
- SI?
- HD?
- LD?
heath-leafed banksiaBanksia ericifoliaPerennial, Shrub- NCL
- CV×
- SCL
- SI?
- HD?
- LD?
heavenly bambooNandina domestica and cvs.Shrub- NCL
- CVL
- SCM
- SIM
- HDM
- LDM
heavenly bamboo (Nana)Nandina domestica 'Purpurea'Shrub- NCM
- CVM
- SCM
- SIM
- HDM
- LDM
heavenly blueLithodora diffusaPerennial- NCM
- CVM
- SCM
- SI×
- HD×
- LD×
hebeHebe spp.Shrub- NCM
- CVM
- SCM
- SIM
- HD×
- LD×
hechtiaHechtia spp and cvs.Perennial, Succulent- NCL
- CV?
- SCL
- SIL
- HD?
- LD?
hedge mapleAcer campestreTree- NCM
- CVM
- SC?
- SI?
- HD×
- LD×
hedge nettleStachys bullata (shade)(S. californica)Perennial, California native- NCL
- CV?
- SCL
- SIL
- HD?
- LD?
Hedgehog AgaveAgave strictaSucculent- NCVL
- CVVL
- SCL
- SIVL
- HDVL
- LDVL
helwingiaHelwingia chinensisShrub- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
Henry St. John's wortHypericum beaniiShrub- NCM
- CVM
- SCM
- SIM
- HD×
- LD×
hens and chickensEcheveria spp. & cvs.Perennial, Shrub, Succulent, Arboretum All-Star- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
Herbert's goblet flowerCypella herbertiiBulb- NCM
- CV?
- SCM
- SIM
- HD?
- LD?
Hercules's clubAralia spinosaShrub, Tree- NCM
- CV?
- SCM
- SI×
- HD?
- LD?
Heritage oakQuercus x HeritageTree- NC?
- CV?
- SC?
- SI?
- HDM
- LDM
heron's billErodium corsicumPerennial- NC?
- CVM
- SC?
- SIM
- HD?
- LD?
hesperaloe (changii)Hesperaloe changiiShrub, Succulent- NC?
- CV?
- SCVL
- SIVL
- HD?
- LD?
hibbertia (aspera)Hibbertia asperaShrub- NCM
- CV×
- SCM
- SI?
- HD?
- LD?
hibbertia (pedunculata)Hibbertia pedunculataGround cover, Shrub- NCM
- CV×
- SCM
- SI?
- HD?
- LD?
hibbertia (vestita)Hibbertia vestitaShrub- NCM
- CV×
- SCM
- SI?
- HD?
- LD?
highland bambooChusquea foliosaShrub, Bamboo- NCM
- CV?
- SCM
- SI?
- HD?
- LD?
Highlight (TM) ceanothusCeanothus thysiflorus var. griseus 'MATCEA01' (Ceanothus griseus var. horizontalis 'Highlights') (part shade)Ground cover, Shrub, California native- NC?
- CVL
- SC?
- SI?
- HD?
- LD?
hillside gooseberryRibes californicumShrub, California native- NCVL
- CVL
- SCL
- SIL
- HD?
- LD?
Himalayan blueberryVaccinium moupinenseShrub- NCM
- CV?
- SC?
- SI?
- HD×
- LD×
Himalayan butterfly bushBuddleja crispaShrub- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
Himalayan gingerRoscoea alpinaPerennial- NCM
- CV?
- SCM
- SI?
- HD?
- LD?
Himalayan gloxiniaIncarvillea argutaPerennial- NCM
- CVH
- SCM
- SI?
- HD?
- LD?
Himalayan indigoIndigofera heteranthaShrub- NCL
- CV?
- SC?
- SI?
- HD?
- LD?
Himalayan ivyHedera nepalensisGround cover, Vine- NCM
- CVM
- SC?
- SI?
- HD?
- LD?
Himalayan leptodermisLeptodermis oblongaShrub- NCM
- CV?
- SC?
- SI?
- HD?
- LD?
Himalayan mapleAcer oblongumTree- NCM
- CV×
- SCM
- SIM
- HD×
- LD×
Himalayan pinePinus wallichianaTree- NCM
- CVL
- SCM
- SI?
- HD?
- LD?
Himalayan windflowerAnemone rivularisPerennial- NCM
- CV?
- SCM
- SI?
- HD×
- LD×
- NC?
- CV?
- SCL
- SI?
- HD?
- LD?
hoary manzanitaArctostaphylos canescensShrub, California native- NCVL
- CV?
- SCL
- SI?
- HD×
- LD×
hoary peaTephrosia grandifloraShrub- NCM
- CV?
- SC?
- SI?
- HD?
- LD?
hoary vervainVerbena strictaGround cover, Perennial- NCL
- CVM
- SCM
- SIM
- HDM
- LDM
holly leaf cherryPrunus ilicifoliaTree, California native- NCL
- CVM
- SCVL
- SIVL
- HD×
- LD×
holly oakQuercus ilexTree- NCL
- CVL
- SCL
- SIL
- HDM
- LDM
holly sweetspireItea ilicifoliaShrub- NCM
- CVM
- SCM
- SIM
- HD?
- LD?
hollyleaf redberryRhamnus ilicifoliaShrub, California native- NCL
- CVL
- SCVL
- SIL
- HD?
- LD?
- NCL
- CVL
- SCM
- SIM
- HD?
- LDM
honey bushMelianthus minorShrub- NCL
- CV?
- SCL
- SIM
- HD?
- LD?
honey bushMelianthus villosusShrub- NCL
- CV?
- SCL
- SI?
- HD?
- LD?
Honey EuryopsEuryops virgineus 'Tali'Perennial- NCM
- CV?
- SCVL
- SI?
- HD?
- LDM
honey flowerMelianthus majorShrub- NCL
- CVM
- SCL
- SIM
- HD?
- LD?
honey locustGleditsia triacanthosTree- NCL
- CVL
- SCM
- SIL
- HDL
- LDL
honey mesquiteProsopis glandulosa var. torreyanaTree, California native- NC×
- CVL
- SCL
- SIL
- HDL
- LDL
honeybellsHermannia verticillataShrub- NCM
- CV?
- SCL
- SIL
- HD?
- LD?
honeybushMelianthus pectinatusShrub- NCL
- CV?
- SCL
- SI?
- HD?
- LD?
honeycupZenobia pulverulentaShrub- NCM
- CV?
- SC?
- SI?
- HD?
- LD?
honeysuckle (confusa)Lonicera confusaVine- NC?
- CV?
- SCM
- SI?
- HD?
- LD?
Hong Kong orchid treeBauhinia x blakeanaTree- NCM
- CVM
- SCM
- SIM
- HDL
- LDM
Hooker's evening primroseOenothera elata (E. hookeri)Perennial, California native- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
hopsHumulus lupulusVine- NCL
- CVM
- SC×
- SIH
- HD?
- LD?
hopseed bushDodonaea adenophoraShrub- NC?
- CV?
- SCL
- SI?
- HD?
- LD?
hopseed bushDodonaea boroniifoliaShrub- NCL
- CV?
- SCL
- SI?
- HD?
- LD?
hopseed bushDodonaea viscosaShrub- NCL
- CVL
- SCL
- SIM
- HDM
- LDM
hopseed bush (procumbens)Dodonaea procumbensGround cover- NCL
- CVL
- SCL
- SI?
- HD?
- LD?
horkeliaHorkelia californicaPerennial, California native- NCM
- CVM
- SCM
- SI?
- HD?
- LD?
horned poppyGlaucium flavumPerennial- NCL
- CVL
- SCVL
- SIL
- HD?
- LD?
horned spurgeEuphorbia ceratocarpaPerennial, Succulent- NCL
- CV?
- SC?
- SI?
- HD?
- LD?
horsetailEquisetum spp. & cvs. (native and non-native spp.)Perennial, California native- NC×
- CVM
- SC×
- SIM
- HDM
- LD×
horsetail restioElegia equisetaceaPerennial- NCM
- CV?
- SCM
- SI?
- HD?
- LD?
hot lips turtle headChelone lyonii 'Hot Lips'Perennial- NCM
- CV?
- SC?
- SI×
- HD?
- LD?
Houpu magnoliaMagnolia officinalisTree- NCM
- CV?
- SCM
- SI?
- HD?
- LD?
house leekSempervivum spp. & cvs.Perennial, Succulent- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
Huangshan magnoliaMagnolia cylindricaTree- NCM
- CV?
- SCM
- SI?
- HD?
- LD?
Huckleberry OakQuercus vacciniifoliaShrub, California native- NCL
- CV?
- SC?
- SI?
- HD?
- LD?
Humboldt lilyLilium humboldtiiBulb, California native- NCL
- CVVL
- SCL
- SIL
- HDM
- LDM
Hummingbird MintAgastache 'Wildfire'Perennial- NCM
- CVL
- SC?
- SIM
- HD?
- LD?
hummingbird plantDicliptera suberectaPerennial- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
hummingbird/pitcher sageSalvia spathacea and cvs.Ground cover, Perennial, California native, Arboretum All-Star- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
Huntington Carpet RosemaryRosmarinus officinalis 'Huntington Carpet'Shrub- NCL
- CVL
- SCL
- SIL
- HDL
- LDL
hyacinthHyacinthus spp.Bulb- NCM
- CVL
- SC×
- SI?
- HDM
- LDM
hyacinth beanLablab purpureus (Dolichos lablab)Vine- NCM
- CVM
- SCM
- SI?
- HD?
- LD?
hyacinth orchidBletilla striataPerennial, Arboretum All-Star- NCM
- CVM
- SCM
- SI?
- HD?
- LD?
hyacinth squillScilla hyacinthoidesBulb- NC?
- CV?
- SCL
- SI?
- HD?
- LD?
hybrid bergeniaBergenia hybridsPerennial- NCM
- CVM
- SCM
- SIM
- HD?
- LD?
hybrid brachychitonBrachychiton x hybridusTree- NCM
- CV×
- SCM
- SIM
- HD×
- LDM
hybrid cliviaClivia & ssp., hybrids & cvs. (shade)Perennial- NCM
- CVL
- SCL
- SIM
- HD×
- LD×
hybrid crane's billErodium x variabile cvs.Perennial- NCL
- CV?
- SC?
- SI?
- HD?
- LD?
hybrid cyrtanthusCyrtanthus hybridsBulb- NCM
- CV?
- SCL
- SIL
- HD?
- LD?
- NCVL
- CVL
- SCL
- SIVL
- HD?
- LD?
hybrid lantanaLantana hybridsGround cover- NCL
- CVL
- SCL
- SIL
- HDM
- LDM
hybrid magnoliasMagnolia hybridsTree- NCM
- CVM
- SCM
- SI?
- HD?
- LD?
- NCL
- CVL
- SCVL
- SIL
- HD?
- LD?
hybrid rockroseX Halimiocistus sahuciiShrub- NCL
- CV?
- SCL
- SIL
- HD?
- LD?
hybrid rose leaf sageSalvia pulchella x involucrataPerennial- NCM
- CV?
- SC?
- SIM
- HD?
- LD?
hybrid soapwortSaponaria x lempergii 'Max Frei'Ground cover, Perennial, Arboretum All-Star- NCM
- CVL
- SC?
- SI?
- HD?
- LD?
hybrid witch hazelHamamelis intermediaShrub- NCM
- CV?
- SC?
- SI?
- HD?
- LD?
hydrangeaHydrangea macrophylla & cvs.Shrub- NCM
- CVH
- SCM
- SIH
- HD×
- LD×
hypericumHypericum empetrifolium nanumGround cover, Shrub- NCM
- CV?
- SC?
- SI?
- HD?
- LD×
hypericum (frondosum)Hypericum frondosumPerennial, Shrub- NCM
- CV?
- SC?
- SI?
- HD?
- LD?
Photo credits, 140 images from Wikimedia Commons
- habranthus: GTBacchus, CC BY-SA 3.0 (licence)
- hairy awn muhly: Forest & Kim Starr, CC BY 3.0 (licence)
- hairy canary clover: Hubert Laroche, CC BY 2.5 (licence)
- hairy Darling pea: Melburnian, CC BY 3.0 (licence)
- hairy golden aster: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0 (licence)
- hairy gum plant: Franco Folini, CC BY-SA 2.0 (licence)
- hairy lip fern: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 (licence)
- hairy Matilija poppy: Stan Shebs, CC BY-SA 3.0 (licence)
- Hairy Mountain Mahogany: Alex Abair, CC BY 4.0 (licence)
- hairy poppy: Misolonax, CC BY-SA 4.0 (licence)
- hairy seed false goldfields: Patrick Alexander from Las Cruces, NM, CC0 (licence)
- hairy wattle: Bidgee, CC BY 3.0 (licence)
- hairy wedelia: Stan Shebs, CC BY-SA 3.0 (licence)
- hakone grass: Photo by and (c)2006 Derek Ramsey (Ram-Man). Location credit to the Chanticle..., CC BY-SA 3.0 (licence)
- halimiocistus: Leonora Enking from West Sussex, England, CC BY-SA 2.0 (licence)
- Hall's Honeysuckle: Mokkie, CC BY-SA 3.0 (licence)
- hammock fern: Forest and Kim Starr, CC BY 3.0 us (licence)
- hard shield fern: MPF, CC BY 2.5 (licence)
- Hardstem Bulrush: Paul R. Burley, CC BY-SA 4.0 (licence)
- hardy alyssum/basket of gold: Crusier, CC BY 3.0 (licence)
- hardy begonia: User:SB_Johnny, CC BY-SA 3.0 (licence)
- hardy cyclamen: Meneerke bloem, CC BY-SA 3.0 (licence)
- hardy eucryphia: Kurt Stüber, CC BY-SA 3.0 (licence)
- hardy fuchsia: W. Bulach, CC BY-SA 4.0 (licence)
- hardy gloxinia: This Photo was taken by FredrikLähnn All my photos are public domain, but if..., Public domain
- hardy ice plant: Didier Descouens, CC BY-SA 4.0 (licence)
- hardy petunia: Kurt Stüber, CC BY-SA 3.0 (licence)
- hardy/straw foxglove: Bernd Haynold, CC BY 2.5 (licence)
- Harlequin flower: Ixitixel, CC BY-SA 3.0 (licence)
- harlequin glory bower: Wendy Cutler from Vancouver, Canada, CC BY 2.0 (licence)
- Harry Lauder's walking stick: MPF, CC BY-SA 3.0 (licence)
- Hart's tongue fern: Erwin Gruber from Frohnleiten, Österreich, Steiermark, CC BY-SA 2.0 (licence)
- Hartweg's Iris, Rainbow Iris: Tom Hilton, CC BY 2.0 (licence)
- Havard Agave: Daderot, Public domain
- Hawaiian Blue Eyes: Dinesh Valke from Thane, India, CC BY-SA 2.0 (licence)
- Hawaiian elf schefflera: Mike Dickison, CC BY 4.0 (licence)
- Hawaiian snow bush: Forest & Kim Starr, CC BY 3.0 (licence)
- Hawaiian ti: Cliff, CC BY 2.0 (licence)
- Hawaiian tree fern: Hermann Luyken, CC0 (licence)
- haworthia: Abu Shawka, CC0 (licence)
- hawthorn: Nadiatalent, Public domain
- hawthorn maple: Qwert1234, CC BY-SA 3.0 (licence)
- heart leaf fern: Niha khan, CC BY-SA 4.0 (licence)
- heart of fire: Zaida Machado, CC BY-SA 2.0 (licence)
- Heart's Desire ceanothus: Megan Hansen from Portland, OR, US, CC BY-SA 2.0 (licence)
- heartleaf bergenia: Sten at da.wikipedia, CC BY-SA 3.0 (licence)
- heartleaf geranium: JMK, CC BY-SA 3.0 (licence)
- heartleaf robinsonella: Jacob Rehage, CC0 (licence)
- heath: Kurt Stüber, CC BY-SA 3.0 (licence)
- heath melaleuca: Melburnian, CC BY-SA 3.0 (licence)
- heath-leafed banksia: John Moss, Public domain
- heavenly bamboo: Sten Porse, CC BY-SA 3.0 (licence)
- heavenly bamboo (Nana): Acabashi, CC BY-SA 4.0 (licence)
- heavenly blue: KENPEI, CC BY-SA 3.0 (licence)
- hebe: JJ Harrison (https://www.jjharrison.com.au/), CC BY-SA 3.0 (licence)
- hechtia: Timm Stolten, CC BY-SA 3.0 (licence)
- hedge maple: David Perez, CC BY 3.0 (licence)
- hedge nettle: tomhilton, CC BY 2.0 (licence)
- Hedgehog Agave: Tangopaso, Public domain
- helwingia: peganum, CC BY-SA 2.0 (licence)
- Henry St. John's wort: Լիլիթ85, CC BY-SA 4.0 (licence)
- hens and chickens: Didier Descouens, CC BY-SA 4.0 (licence)
- Herbert's goblet flower: Zoltán Stekkelpak, CC0 (licence)
- Hercules's club: User:Richardelainechambers, CC BY-SA 3.0 (licence)
- Heritage oak: Yercaud-elango, CC BY-SA 4.0 (licence)
- heron's bill: C T Johansson, CC BY-SA 3.0 (licence)
- hesperaloe (changii): Sheila Sund from Salem, United States, CC BY 2.0 (licence)
- hibbertia (aspera): John Tann from Sydney, Australia, CC BY 2.0 (licence)
- hibbertia (pedunculata): Tim Hammer, CC BY 4.0 (licence)
- hibbertia (vestita): Tatters ❀ from Brisbane, Australia, CC BY-SA 2.0 (licence)
- highland bamboo: Franz Xaver, CC BY-SA 3.0 (licence)
- Highlight (TM) ceanothus: Sten Porse, CC BY-SA 3.0 (licence)
- hillside gooseberry: Unknown author, Public domain
- Himalayan blueberry: Alex Lomas, CC BY 2.0 (licence)
- Himalayan butterfly bush: Sten Porse, CC BY-SA 3.0 (licence)
- Himalayan ginger: Roscoea_alpina_120819.jpg: Peter coxhead derivative work: Peter coxhead, CC BY-SA 3.0 (licence)
- Himalayan gloxinia: Stan Shebs, CC BY-SA 3.0 (licence)
- Himalayan indigo: Sten Porse, CC BY-SA 3.0 (licence)
- Himalayan ivy: Daderot, Public domain
- Himalayan leptodermis: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 (licence)
- Himalayan maple: Hectonichus, CC BY-SA 3.0 (licence)
- Himalayan pine: Sudan Shrestha, CC BY-SA 3.0 (licence)
- Himalayan windflower: Lokal_Profil, CC BY-SA 3.0 (licence)
- hoary manzanita: tom hilton, CC BY 2.0 (licence)
- hoary pea: Harry Rose from South West Rocks, Australia, CC BY 2.0 (licence)
- hoary vervain: USFWS Mountain-Prairie, Public domain
- holly leaf cherry: John Rusk from Berkeley, CA, United States of America, CC BY 2.0 (licence)
- holly oak: Fritz Geller-Grimm, CC BY-SA 3.0 (licence)
- holly sweetspire: A. Barra, CC BY 3.0 (licence)
- hollyleaf redberry: Eric in SF, CC BY-SA 3.0 (licence)
- honey bush: Rudolphous, CC BY-SA 4.0 (licence)
- honey bush: Alan Manson, CC BY 4.0 (licence)
- Honey Euryops: KENPEI, CC BY-SA 3.0 (licence)
- honey flower: Teresa Grau Ros from Barcelona, CC BY-SA 2.0 (licence)
- honey locust: Kevmin, CC BY-SA 3.0 (licence)
- honey mesquite: Don A.W. Carlson, CC BY 2.5 (licence)
- honeybells: Nakengtsapoho, CC0 (licence)
- honeybush: Stan Shebs, CC BY-SA 3.0 (licence)
- honeycup: A. Barra, CC BY-SA 4.0 (licence)
- honeysuckle (confusa): 阿橋 HQ, CC BY-SA 2.0 (licence)
- Hong Kong orchid tree: Shoshie8, CC0 (licence)
- Hooker's evening primrose: by User:Stan Shebs, CC BY-SA 3.0 (licence)
- hops: Wouterhagens at Dutch Wikipedia, CC BY-SA 3.0 (licence)
- hopseed bush: Murray Fagg, CC BY-SA 3.0 au (licence)
- hopseed bush: B.navez, CC BY-SA 3.0 (licence)
- hopseed bush: Forest & Kim Starr, CC BY 3.0 (licence)
- hopseed bush (procumbens): Maree Goods, CC BY 3.0 (licence)
- horkelia: Scott Loarie, CC BY 2.0 (licence)
- horned poppy: Salicyna, CC BY-SA 4.0 (licence)
- horned spurge: Naevus, CC BY-SA 3.0 (licence)
- horsetail: Matti Virtala, CC0 (licence)
- horsetail restio: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 (licence)
- hot lips turtle head: KENPEI, CC BY 3.0 (licence)
- Houpu magnolia: Bruce Marlin, CC BY-SA 3.0 (licence)
- house leek: Bouba, CC BY-SA 3.0 (licence)
- Huangshan magnolia: Wouter Hagens, CC BY-SA 3.0 (licence)
- Huckleberry Oak: Stan Shebs, CC BY-SA 3.0 (licence)
- Humboldt lily: Stan Shebs, CC BY-SA 3.0 (licence)
- Hummingbird Mint: Benh LIEU SONG - Hoverfly identification by Lycaon, CC BY-SA 3.0 (licence)
- hummingbird plant: Stan Shebs, CC BY-SA 3.0 (licence)
- hummingbird/pitcher sage: Taken by Antandrus, Public domain
- Huntington Carpet Rosemary: jacilluch, CC BY-SA 2.0 (licence)
- hyacinth: The wub, CC BY-SA 3.0 (licence)
- hyacinth bean: Taken by Fanghong, CC BY-SA 3.0 (licence)
- hyacinth orchid: KENPEI, CC BY-SA 3.0 (licence)
- hyacinth squill: Chenspec, CC BY-SA 3.0 (licence)
- hybrid bergenia: Christian Hummert (Ixitixel), CC BY-SA 3.0 (licence)
- hybrid brachychiton: Bidgee, CC BY-SA 3.0 au (licence)
- hybrid clivia: Paul Hermans, CC BY-SA 3.0 (licence)
- hybrid crane's bill: Ghislain118 (AD) http://www.fleurs-des-montagnes.net, CC BY-SA 3.0 (licence)
- hybrid cyrtanthus: Masaki Ikeda, CC BY-SA 3.0 (licence)
- hybrid lantana: روتانا, CC BY 4.0 (licence)
- hybrid magnolias: Magnolia_Watsoni.JPG: WibblyWibby derivative work: Wikiklaas (talk), Public domain
- hybrid rockrose: Leonora Enking from West Sussex, England, CC BY-SA 2.0 (licence)
- hybrid rose leaf sage: Stan Shebs, CC BY-SA 3.0 (licence)
- hybrid soapwort: Victor M. Vicente Selvas, Public domain
- hybrid witch hazel: Dirk Liesch, CC BY 4.0 (licence)
- hydrangea: belvedere04, CC BY 4.0 (licence)
- hypericum: C T Johansson, CC BY 3.0 (licence)
- hypericum (frondosum): Sesamehoneytart, CC BY-SA 3.0 (licence)
.jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
_1.jpg){kind=link}
.jpg){kind=link}
_Delosperma_cooperi_-_Flower_and_leaves.jpg){kind=link}
_2.jpg){kind=link}
.jpg){kind=link}
_(9937565586).jpg){kind=link}
.jpg){kind=link}
_Hawaii_Volcanoes_National_Park_Hawaii.jpg){kind=link}
_1-00001.jpg){kind=link}
_Echeveria_secunda.jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
.JPG){kind=link}
.jpg){kind=link}
_on_Mixed_Grass_Prairie_of_Lacreek_NWR_(13918328442).jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
_Lonicera_confusa_-%E9%A6%99%E6%B8%AF%E5%98%89%E9%81%93%E7%90%86%E8%BE%B2%E5%A0%B4_Kadoorie_Farm,_Hong_Kong-_(9255175456).jpg){kind=link}
.jpg){kind=link}
.JPG){kind=link}
.jpg){kind=link}
.jpg){kind=link}
.jpg){kind=link}
_Hydrangea_macrophylla,_Iwafune,_Isumi,_Chiba,_Japan_2.jpg){kind=link}
Zones: NC North-Central Coastal, CV Central Valley, SC South Coastal, SI South Inland, HD High and Intermediate Desert, LD Low Desert. Ratings: VL very low water, L low, M moderate, H high, ? not rated for that zone, × not suited to that zone. Ratings are the University of California WUCOLS IV list.
How to use this list
- MinutesOpen the calculator with this plant set. The preset city is in a zone where WUCOLS rates the plant. Set your sprinkler type and watering days.
- GuideRead a plant watering guide. Links appear for plants covered by our 1023 written guides.
- PlanBuild your personal watering plan. Put your plants and city together for monthly sprinkler minutes on a printable sheet.
Sources
- WUCOLS IV plant list, University of California, snapshot of the live databaseRead August 23, 2026 on ucanr.edu/sites/WUCOLS
- Appendix C reference evapotranspiration table behind the six zonesRead August 23, 2026 on water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/Water-Use-And-Efficiency/MWELO-Rulemaking/Final-MWELO-Text-and-Appendices_20250103.pdf