California Native Plants

Summary

Native plants play a vital rolel in supporting California ecosystems. They are often more water-efficient than invasive alternatives, which is an important consideration for landscaping in California's arid, water-scarce climate. This website provides a table with information about native plants and their benefits, as well as two walkthroughs that demonstrate how gardeners and landscapers can take advange of this knowledge.



Glossary of terms


Reveal data

Common Name
Local and widely-known name
Scientific Name
Universal binomial name
Growth Form
Shape and structure of plant
Water Needs
Amount of water required for healthy growth
Ecological Role
Service provided to ecosystem
Arroyo LupineLupinus succulentusHerbaceous perennialLowFixes nitrogen; supports butterfly larvae
California PoppyEschscholzia californicaAnnual wildflowerLowNectar for pollinators; seeds feed birds
Coast Live OakQuercus agrifoliaEvergreen treeModerateAcorns feed wildlife; provides canopy habitat
Coulter PinePinus coulteriEvergreen coniferLowSeeds feed wildlife; provides canopy habitat
Coyote BrushBaccharis pilularisShrub / groundcoverLowHabitat and nectar source for insects and birds
Douglas IrisIris douglasianaPerennial wildflowerModerateAttracts pollinators; adds understory diversity
Matilija PoppyRomneya coulteriPerennial shrubModerateLarge flowers for pollinators
Purple NeedlegrassNassella pulchraPerennial bunchgrassLowHost plant for insects; erosion control
Toyon (Christmas Berry)Heteromeles arbutifoliaEvergreen shrub/treeLowBerries feed birds and mammals; nectar for pollinators
White SageSalvia apianaEvergreen shrubLowSupports native bees and pollinators
Fig 1. Table of Native Plant Info

Glossary

Growth Form
the overall physical shape and structure of a plant, determined by its size, branching patterns, and the type of tissues it forms
Water Needs
the total amount of water a plant requires for its physiological processes
Ecological Role
a plant's functions within an ecosystem
Evergreen
a plant that retains green leaves throughout the year.
Perrenial
a plant that lives for more than two years, regrowing from its roots each year after the foliage dies back in winter

Fig 2. Arroyo Lupine

Walkthrough 1: Understanding the Data

This table can be used to gain knowledge of common native plant species in California. The growth form relates to a plant’s morphology, life cycle and seasonal changes. For example, Arroyo Lupine is an herbaceous perennial, meaning that it is a non-woody plant with foliage, and that it dies down annually in the winter but will regrow from its roots the next season. Water needs refer to the amount of water a plant requires to support healthy growth. In this category, “Low” means that the plant needs to be watered once a week or less, “Moderate” means it needs to be watered twice a week, and “High” means it needs to be watered more that twice a week. The Ecological Role column refers to the plants contribution to the local ecosystem. For example, the Matilija Poppy offers large flowers for pollinators, which would be ideal for a gardener seeking to attract bees.



Walkthrough 2: Selecting Plants

Once you understand the data, you can use this information to decide which plants are right for your garden. If you are looking to add shade cover, you should look at the “Growth Form” category, and might consider Coast Live Oak, an evergreen tree, or Coulter Pine, an evergreen conifer. If you are looking to attract pollinators, you can look at the “Ecological Role” category and choose from flowers and shrubs such as California Poppy, Douglas Iris, and White Sage. Arroyo Lupine would be a choice for attracting butterflies as it supports butterfly larvae. Furthermore, It is important to consider the water needs of your garden as water is a scarce resource in California. If your garden is well-irrigated and uses green water sources such as rain barrels, you may be equipped to plant varieties with moderate water needs, such as Matilija Poppy. However, if you plan to water your plants from a garden hose, you should consider planting species with mostly low water needs. In summary, landscaping your garden is a highly individualized process that depends on your equipment and goals.