Guide to Estimating Irrigation Water Needs of Landscape Plantings

Hedera canariensis—Coastal and inland regions in moist
and shady places
Hedera helix—Coastal and inland regions in moist and
shady places
Helichrysum petiolare—north coastal scrub
Ilex aquifolium—Coastal forests
Imperata cylindrica, I brasiliensis—on federal noxious
weed list
Juncus spp.—potential to naturalize moist areas
Ligustrum lucidum—Mendocino coast
Limonium perezii—Southern coastal beaches and bluffs
Lonicera japonica ‘Halliana’—Coastal and inland regions;
moist, shady places
Lotus corniculatus—Roadside weed
Lupinus arboreus—North coast dunes
Lysimachia nummularia—widely naturalized in other
states, not in CA to date
Malephora crocea—south coast bluffs, margins of wetlands
Melaleuca viridifolia (quinqueneveria)—severe problem in
Florida wetlands, not in CA to date
Mentha pulegium—invades Santa Rosa Plain (Sonoma
County)
Myoporum laetum—Northern and southern coastal foothills
Myosotis spp.—Coastal forests
Nereum oleander—Riparian areas
Oenanthe javanica—potential to naturalize in damp
habitats
Olea europaea—Southern coastal and inland foothills
Pennisetum setaceum—All dry climate regions, grasslands,
desert canyons
Phalaris aquatica—coastal sites with moist soil
Phyla nodiflora—Wet places, vernal pools
Pinus pinaster—Sparingly naturalized central coast
Pinus pinea—Sparingly naturalized central coast
Pinus radiata—Central and northern coastal
Pyracantha spp.—Central coastal
Robinia pseudoacacia—Northern valleys and foothills to
southern mountains and foothills
Sapium sebiferum—severe problem in Gulf coast wetlands,
bottomland forests, beginning to appear in CA in
wetlands in Yolo county and along the American River
near Sacramento
Schinus mole—Coastal canyons and foothills statewide
Schinus terebinthifolius—Coastal lowlands, wet places
Spartium junceum—Coastal scrub, oak woodlands
Tamarix chinensis, T gallica, T parviflora, T ramosissima
(pendantra)—Coastal through desert riparian areas
Tropaeolum majus —Moist coastal regions
Vinca major—Riparian areas, oak woodland, mostly
coastal
Watsonia bulbillifera—North coast
Watsonia marginata—North coast
Zantedeschia aethiopica—Coastal streams
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