Kaffir bloom coral treeErythrina caffraTree- NCM
- CV×
- SCL
- SIM
- HD×
- LD×
Plants starting with K: 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.
Kaffir bloom coral treeErythrina caffraTree
Kaffir plumHarpephyllum caffrumTree- NCM
- CV×
- SCM
- SIM
- HD×
- LD×
Kahili gingerHedychium gardnerianumPerennial- NCM
- CV×
- SCH
- SIH
- HD×
- LD×
kalanchoeKalanchoe spp. & cvs.Shrub, Succulent- NCL
- CVL
- SCL
- SIL
- HD×
- LDM
Kalm's St. John's wortHypericum kalmianumShrub- NC?
- CV?
- SC?
- SI?
- HD×
- LD×
Kanga Pink Kangaroo PawAnigozanthos 'Kanga Pink'- NCVL
- CVL
- SCL
- SIL
- HD×
- LD?
Kanga Red Kangaroo PawAnigozanthos 'Kanga Red'Perennial- NCVL
- CVL
- SCL
- SIL
- HD×
- LD?
kangaroo appleSolanum aviculareShrub- NCL
- CVM
- SCM
- SI?
- HD?
- LD?
kangaroo fernMicrosorum pustulatumPerennial- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
kangaroo pawAnigozanthos flavidusPerennial- NCL
- CVL
- SCM
- SIL
- HD×
- LD×
kangaroo vineCissus antarcticaVine- NCL
- CVL
- SCM
- SIM
- HD×
- LD?
kapukaGriselinia littoralisShrub- NCM
- CV×
- SCM
- SI×
- HD×
- LD×
Kardinal Kolorscape® roseRosa 'KORsixkono'Shrub- NC?
- CVL
- SC?
- SI?
- HD?
- LD?
Karla's sageSalvia 'Karla'Perennial, Shrub- NCM
- CV?
- SCM
- SI?
- HD?
- LD?
Karoo Boer bloomSchotia afra var. angustifoliaTree- NCL
- CV?
- SCL
- SI?
- HD?
- LD?
Karwinski's sageSalvia karwinskiiShrub- NCM
- CVM
- SCM
- SIM
- HD?
- LD?
Kashmir cypressCupressus cashmerianaTree- NCM
- CVM
- SCM
- SIM
- HD?
- LD?
Kashmir sagePhlomis spectabilis (Phlomis cashmeriana)Shrub- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
- NCL
- CVL
- SC?
- SI?
- HD?
- LDM
Katrinus Deluxe dwarf matt rushLomandra longifolia 'Katrinus Deluxe'Ornamental grass- NC?
- CVL
- SCL
- SI?
- HD?
- LD?
Katsura treeCercidiphyllum japonicumTree- NCM
- CVM
- SCM
- SI?
- HD×
- LD×
Keller hypericumHypericum kelleriGround cover, Perennial- NCM
- CV?
- SC?
- SI?
- HD?
- LD?
kellerii achilleaAchillea x kellereriPerennial- NCM
- CVL
- SCL
- SI?
- HD?
- LD?
Ken Taylor manzanitaArctostaphylos hookeri 'Ken Taylor'Ground cover, Shrub, California native- NCL
- CV?
- SCL
- SIL
- HD×
- LD×
Kenilworth ivyCymbalaria muralisGround cover, Perennial- NCM
- CVM
- SCM
- SIM
- HD?
- LD?
Kentia palmHowea forsterianaTree, Palm or cycad- NC×
- CV×
- SCM
- SIM
- HD×
- LD×
Kentucky coffee treeGymnocladus dioicaTree- NCL
- CVM
- SCM
- SI?
- HD?
- LD?
Kew broomCytisus x kewensisGround cover- NCM
- CVM
- SC×
- SI?
- HDM
- LD?
Khasia Hills fan palmTrachycarpus martianusTree, Palm or cycad- NC?
- CV?
- SCH
- SI?
- HD?
- LD?
kidney-leaved pelargoniumPelargonium reniformePerennial- NCM
- CV?
- SC?
- SI?
- HD×
- LD×
- NC×
- CV?
- SC?
- SI?
- HDL
- LDL
kidneywoodEysenhardtia polystachyaTree- NC×
- CV?
- SC?
- SI?
- HD?
- LD?
king palmArchontophoenix cunninghamianaTree, Palm or cycad- NCM
- CVM
- SCM
- SIM
- HD×
- LD×
King's Celebration GrevilleaGrevillea 'Kings Celebration'Shrub- NC?
- CV×
- SCL
- SI?
- HD?
- LD?
King's Fire GrevilleaGrevillea 'Kings Fire'Shrub- NC?
- CVL
- SCL
- SI?
- HD?
- LD?
King's mantleThunbergia erectaShrub- NC?
- CV?
- SCM
- SIM
- HD?
- LD?
kiwiActinidia deliciosaVine- NCM
- CVM
- SCH
- SIH
- HD×
- LD×
kleiniaSenecio mandraliscae (Kleinia mandraliscae)Ground cover, Perennial, Succulent- NCL
- CV?
- SCL
- SIL
- HD?
- LD?
knife acaciaAcacia cultriformisShrub- NCL
- CVL
- SCL
- SIL
- HD×
- LD×
knobby club rushIsolepis nodosaPerennial- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
knobcone pinePinus attenuataTree, California native- NCVL
- CVL
- SCL
- SIL
- HD×
- LD×
knobcone-Monterey pinePinus x attenuradiataTree- NCM
- CV×
- SCM
- SIM
- HD×
- LD×
Knock Out® RedRosa 'Radrazz' PP11836 CPBR0993Shrub- NCM
- CVM
- SCM
- SIM
- HDM
- LD?
Knock Out® WhiteRosa 'Radwhite' PP20273Shrub- NCM
- CVM
- SC?
- SIM
- HDM
- LD?
knotweedPersicaria affinisGround cover- NCM
- CVH
- SCM
- SI?
- HD?
- LD?
knotweedPersicaria capitata (Shade in San Diego)Ground cover- NCM
- CVH
- SCM
- SIM
- HD?
- LD?
Knysna lilyCyrtanthus obliquusBulb- NCM
- CV?
- SCL
- SI?
- HD?
- LD?
kobus magnoliaMagnolia kobusShrub- NCM
- CVM
- SCM
- SIM
- HD?
- LD?
Korean arbovitaeThuja koraiensisTree- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
Korean hornbeamCarpinus coreanaTree- NCM
- CV?
- SC?
- SI×
- HD?
- LD?
Korean lilacSyringa pubescens ssp. patula cvs.Shrub- NCM
- CVM
- SC×
- SIM
- HD?
- LD×
Korean pinePinus koraiensisTree- NC?
- CV×
- SC×
- SI?
- HD?
- LD?
Korean rock fernPolystichum tsus-simensePerennial- NCM
- CVH
- SC?
- SI?
- HD?
- LD?
Korean spice viburnumViburnum carlesiiShrub- NCM
- CVM
- SC?
- SI?
- HD?
- LD?
Korean striped bark mapleAcer tschonoskii 'Koreanum'Tree- NC?
- CV?
- SC?
- SI?
- HD×
- LD×
KowhaiSophora microphyllaShrub, Tree- NCM
- CV?
- SCM
- SI?
- HD?
- LD?
'Krauter Vesuvius' Purple PlumPrunus cerasiferaTree- NCM
- CVM
- SCM
- SIM
- HDM
- LDM
Kudos™ Coral Dwarf AgastacheAgastache 'Kudos Coral' PP25613Perennial- NCM
- CVL
- SC?
- SIM
- HD?
- LD?
Kudos™ Gold Dwarf AgastacheAgastache 'Kudos Gold' PP26410Perennial- NCL
- CVL
- SC?
- SIM
- HD?
- LD?
Kumaon palmTrachycarpus takilTree, Palm or cycad- NC?
- CV×
- SCH
- SIM
- HD×
- LDM
Kunth's evening primroseOenothera kunthianaPerennial- NC?
- CV?
- SC?
- SI?
- HD?
- LD?
kunzeaKunzea spp.Shrub- NCL
- CVL
- SCM
- SI?
- HD?
- LD?
KurapiaLippia nodiflora 'Campagna Verde'- NCL
- CVL
- SCL
- SIL
- HD?
- LD?
Kurt Zadnik Carmel CeanothusCeanothus thyrsiflorus var. griseus 'Kurt Zadnik'Shrub, California native- NCL
- CVL
- SCL
- SIL
- HD×
- LD×
Photo credits, 62 images from Wikimedia Commons
- Kaffir bloom coral tree: Forest & Kim Starr, CC BY 3.0 (licence)
- Kaffir plum: Rotational, Public domain
- Kahili ginger: JJ Harrison (https://www.jjharrison.com.au/), CC BY-SA 3.0 (licence)
- kalanchoe: Stan Shebs, CC BY-SA 3.0 (licence)
- Kalm's St. John's wort: Shuvaev, CC BY-SA 4.0 (licence)
- Kanga Pink Kangaroo Paw: Gnangarra, CC BY 2.5 au (licence)
- Kanga Red Kangaroo Paw: gérard from Nouméa, (Nouvelle-Calédonie), CC BY-SA 2.0 (licence)
- kangaroo apple: Poyt448 Peter Woodard, CC0 (licence)
- kangaroo fern: Rudolph89, CC BY-SA 3.0 (licence)
- kangaroo paw: Cygnis insignis, Public domain
- kangaroo vine: Arria Belli, CC BY-SA 4.0 (licence)
- kapuka: Mike Dickison, CC BY 4.0 (licence)
- Kardinal Kolorscape® rose: Abderitestatos, CC BY 3.0 (licence)
- Karla's sage: Rob Hille, Public domain
- Karoo Boer bloom: NJR ZA, CC BY-SA 3.0 (licence)
- Karwinski's sage: Scott Zona, CC BY 2.0 (licence)
- Kashmir cypress: Materialscientist, CC BY-SA 3.0 (licence)
- Kashmir sage: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 (licence)
- Katrinus Deluxe dwarf matt rush: Magnus Manske, CC BY-SA 3.0 (licence)
- Katsura tree: 663highland, CC BY 2.5 (licence)
- Keller hypericum: Ashish8460, CC BY-SA 4.0 (licence)
- kellerii achillea: Patrick Standish from Aurora, Colorado, USA, CC BY 2.0 (licence)
- Ken Taylor manzanita: Pacific Southwest Region USFWS from Sacramento, US, Public domain
- Kenilworth ivy: Franco Folini from San Francisco, USA, CC BY-SA 2.0 (licence)
- Kentia palm: Black Diamond Images, CC BY 2.0 (licence)
- Kentucky coffee tree: MONGO, Public domain
- Kew broom: Franz Xaver, CC BY-SA 3.0 (licence)
- Khasia Hills fan palm: Oroussei, CC BY-SA 3.0 (licence)
- kidney-leaved pelargonium: JMK, CC BY-SA 3.0 (licence)
- kidneywood: Juan Carlos Fonseca Mata, CC BY-SA 4.0 (licence)
- king palm: Bruce Paton, CC BY-SA 4.0 (licence)
- King's Celebration Grevillea: Adam.J.W.C., CC BY-SA 3.0 (licence)
- King's Fire Grevillea: jeans_Photos, CC BY 2.0 (licence)
- King's mantle: Kurt Stüber, CC BY-SA 3.0 (licence)
- kiwi: Luis Miguel Bugallo Sánchez (Lmbuga) Copyright: GFDL (GNU Free Documentation..., CC BY-SA 3.0 (licence)
- kleinia: Forest & Kim Starr, CC BY 3.0 (licence)
- knife acacia: Melburnian, CC BY-SA 3.0 (licence)
- knobby club rush: Kristian Peters -- Fabelfroh 11:23, 25 November 2007 (UTC), CC BY-SA 3.0 (licence)
- knobcone pine: w:User:Geographer, CC BY 2.5 (licence)
- knobcone-Monterey pine: Honymand, CC BY-SA 4.0 (licence)
- Knock Out® Red: JDP90 (Joydeep), CC BY-SA 3.0 (licence)
- Knock Out® White: Ввласенко, CC BY-SA 4.0 (licence)
- knotweed: Daderot, CC0 (licence)
- knotweed: JJ Harrison (https://www.jjharrison.com.au/), CC BY-SA 3.0 (licence)
- Knysna lily: SAplants, CC BY-SA 4.0 (licence)
- kobus magnolia: Bruce Marlin, CC BY-SA 3.0 (licence)
- Korean arbovitae: Crusier, CC BY-SA 3.0 (licence)
- Korean hornbeam: j. lindsay, CC BY 2.0 (licence)
- Korean lilac: Kurt Stüber, CC BY-SA 3.0 (licence)
- Korean pine: Original: Olga Ukhvatkina; edit: MPF, CC BY-SA 4.0 (licence)
- Korean rock fern: Daderot, CC BY-SA 4.0 (licence)
- Korean spice viburnum: Rüdiger Wölk, CC BY-SA 2.5 (licence)
- Korean striped bark maple: Anneli Salo, CC BY-SA 3.0 (licence)
- Kowhai: Andy McKay, CC BY 4.0 (licence)
- 'Krauter Vesuvius' Purple Plum: AnRo0002, CC0 (licence)
- Kudos™ Coral Dwarf Agastache: Alex Abair, CC BY 4.0 (licence)
- Kudos™ Gold Dwarf Agastache: Alex Abair, CC BY 4.0 (licence)
- Kumaon palm: trsraman, CC BY 4.0 (licence)
- Kunth's evening primrose: Juan Carlos Fonseca Mata, CC BY-SA 4.0 (licence)
- kunzea: Benjamint444, CC BY-SA 3.0 (licence)
- Kurapia: Vengolis, CC BY-SA 4.0 (licence)
- Kurt Zadnik Carmel Ceanothus: Stan Shebs, CC BY-SA 3.0 (licence)
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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