Yarrows are variable low-growing, spreading herbaceous perennials with finely divided leaves that inhabit many temperate regions in the Northern Hemisphere. Flattish clusters of flowers form in spring and well into summer and provide an important nectar source for pollinators and insects. Yarrow can help to stabilize slopes and is a good addition to the upper level of rain gardens and swales. Colors include yellow, pink, and red.

California native spp & cvs: A. millefolium (common yarrow), A. m. ‘Calistoga’, A. m. ‘Island Pink’, A. m. ‘Sonoma Coast’, A. m. ‘Terracotta’.

Other yarrows: A. filipendulina (fern leaf yarrow), A. f. ‘Coronation Gold’, A. ‘Moonshine’, A. tomentosa (woolly yarrow).

• Water: Low
• Light: Full SunPartial Shade
• Soil: Most Soils

Mediterranean evergreen flowering shrubs that perform well in California gardens with plenty of sun. Good choice for stabilizing slopes and banks. Flowers appear mid-spring into early summer. Many varieties are low, mounding groundcovers while others are more upright.

Examples: C. ladanifer (crimson spot rockrose, 3-5’ x 3-5’) has white flowers with dark crimson spots. C. x hybridus ‘Mickie’ (white rockrose, 1.5-2’ x 2’) has unique variegated foliage with cherry red stems and white flowers. C. x purpureus (orchid rockrose, 4’ x 4’) flowers are reddish purple with maroon blotches. C. salvifolius (sageleaf rockrose, 2’ x 6’) has white flowers and sage-like leaves. C. x skanbergii (2-4’ x 3-4’) bears pale pink flowers. C. ‘Sunset’ (2’ x 3-5’) flowers in magenta pink and has fuzzy gray-green leaves.

• Water: Low
• Light: Full Sun
• Soil: Most Soils

The orange, tubular flowers of sticky monkey flower can be enjoyed in many locations throughout Sonoma and Marin counties in spring and summer, a testament to how well this plant is adapted to hot and dry conditions. The slightly sticky leaves benefit from light pinching and pruning to maintain an attractive appearance and support for the beautiful flowers. Many hybrids provide color variation. Do not confuse this plant with the red-flowered scarlet monkey flower (Mimulus cardinalis), an herbaceous riparian plant that requires regular water to thrive.

• Water: Very Low
• Light: Full SunPartial Shade
• Soil: Sandy

Classic Mediterranean flowering shrub with aromatic foliage, small blue-lavender flowers in late winter and spring that attract butterflies and bees. Thrives in full sun with well-drained soil and makes a good container plant. Rosemary is an excellent plant to have in the garden for harvesting fresh springs for use in cooking. Cuttings root readily, making it relatively easy to propagate new plants. Many named cultivars provide variation in size, growth form, flavor, and fragrance.

Examples: R. o. ‘Barbeque’ (3-5’ x 2-3’) has tall, upright stems that can be used as skewers for grilling; R. o. ‘Blue Spires’ (4-5’ x 2-3’); R. o. ‘Collingwood Ingram’ (2-3’ x 3-6’) is lower-growing with arching branches; R. o. ‘Huntington Carpet’ (1-2’ x 4-8’) is very low-growing; R. o. ‘Irene’ (1-2’ x 2-3’) has a mounding habit; R. o. ‘Prostratus’ (2’ x 4-8’) has a trailing habit that works well cascading over a retaining wall.

• Water: Low
• Light: Full Sun
• Soil: Well Drained

Salvias are a huge group of more than 900 species that include annuals, perennials, and shrubs adapted to a variety of climates and have varying water requirements. Salvias are attractive to hummingbirds, butterflies, and bees, and are generally ignored by deer. Sages that are native to California are generally drought-tolerant, prefer full sun, and little to no fertilizer. Annual pruning in late summer or fall generally helps to keep plants tidy and healthy.

CA native sages:

• S. apiana, white sage (3-4’ x 4-6’), silvery-white, aromatic leaves with tall flower spikes of white flowers, popular for honey production and in bundles as a natural incense.
• ‘Bee’s Bliss’ (1-2’ x 6-8’), superb, light gray groundcover with light purple flowers on long spikes; damp conditions can cause mildew which will clear with warm weather and sunny conditions.
• S. clevelandii, Cleveland sage (3-5’ x 3-5’), medium-sized shrub for hot, dry locations known for pleasant fragrance and deep blue whorls of flowers; popular cultivars include S. c. ‘Allen Chickering’, S. c. ‘Pozo Blue’, and S. c. ‘Winnifred Gilman’.
• S. leucophylla, purple sage, includes plants with both an upright growth habit, such as S. l. ‘Amethyst Bluff’ (3-5’ x 3-5’) and others with a sprawling form, such as S. l. ‘Point Sal’ (2-3’ x 6’), both of which are from Santa Barbara county.
• S. sonomaensis, Sonoma sage (1-2’ x 3-4’), groundcover that prefers light shade and will not tolerate damp conditions; cultivars include S. s. ‘Dara’s Choice’, S. s. ‘Greenberg Gray’, and S. s. ‘Hobbit Toes’.
• S. spathacaea, hummingbird sage (1-2’ spreading), herbaceous groundcover that grows well in dry shade and spreads slowly by underground rhizomes; large leaves have a wonderful fruity fragrance; the only red-flowered native sage.
• S. mellifera, black sage (6′ x 10′), evergreen shrub that grows well in full sun and well drained soils. Dark green leaves with pale purple flowers in late spring and early summer.

Non-native sages:

• S. chamaedryoides, germander sage (2-3’)
• S. chiapensis, Chiapas sage (1-2’ x 3-4’)
• S. greggii, autumn sage (1-4’ x 1-4’)
• S. leucantha, Mexican bush sage (3-4’ x 3-6’)
• S. microphylla, cherry sage (3-4’ x 3-6’)
• S. officinalis, garden sage (1-3’ x 1-3’)

• Water: Very LowLowModerate
• Light: Full SunPartial Shade
• Soil: Well Drained

Classic, aromatic, small, Mediterranean evergreen shrub that works well in a mass or mixed planting in a sunny location with good drainage. Blue-to-purple flowers are attractive to bees and butterflies, and seeds provide food to birds. Shear plants by one-third to one-half after flowering to maintain a neat appearance. Vulnerable to root rot in damp locations or if organic mulch is too close to plant crown.

Examples: English lavender (L. angustifolia, 1-2’ x 2-3’) and many cultivars, French Lavender (L. dentata, 3-4’ x 4-6’), hedge lavender (L. x intermedia, 1-2’ x 2-3’), Spanish lavender (L. stoechas, 2-3’ x 2-3’) featuring large and showy bracts on top of flower spikes.

• Water: Low
• Light: Full Sun
• Soil: Well Drained

Fast-growing perennials that thrive in hot locations and produce clusters of small, showy flowers in summer.

Examples:

• V. bonariensis (3-6’ x 2-3’) is an upright perennial from South America with long, airy flower stalks. Reseeds readily and should not be planted near riparian areas where it can be invasive.
• Garden verbena (V. x hybrida, 6-12” x 2-3’) is a popular and showy groundcover available in many colors.
• Cedros Island verbena (V. lilacina ‘De La Mina’, 1-2’ x 2-3’) from the Cedros Island off the coast of Baja California is a popular native for its deep purple flower color and uniform growth habit.

• Water: Very LowLow
• Light: Full Sun
• Soil: Well Drained

A native, perennial, deciduous shrub with dark green leaves divided into coarsely toothed leaflets. Rose to pink colored flowers containing yellow seeds and grows abundantly in moist soils. Natural habitat for birds and pollinator insects.

• Water: Low
• Light: Full SunPartial Shade
• Soil: Loam