Gardening sheets silvery foliage

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    10-Jan-2017

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<ul><li><p>*Bishop manzanita Arctostaphylos obispoensis (arc-toe-STAFF-ih-loss oh-bis-poe-EN-sis) </p><p> Family: Ericaceae (Heath Family) Native to: Central CA coastal mountains (Santa Lucia Range) in San Luis Obispo and Monterrey Counties; rocky, often serpentine soils, in chaparral, open closed-cone forest, mixed-evergreen forest and central oak woodland (near coast below 3000 ft. elevation). Growth characteristics: woody shrub/small tree mature height: 5-10+ ft. mature width: 5-10 ft. Evergreen, large woody shrub with attractive deep red-brown bark. Form is dense and mounded. Leaves are simple, rounded and silvery-green to blue-green. Slow-growing. Blooms/fruits: Blooms in late winter/early spring anytime from January to March. Flowers are the small, white, urn-shaped flowers typical of manzanitas. Pretty in bloom. Edible fruits are red when they ripen in summer-fall. Fruits are showy in good years. Uses in the garden: Most often used as a medium-large shrub. Can also be pruned up to a small, multi-trunked tree. Dramatic gray-green accent plant. Attracts hummingbirds. Tolerates clay soils and some heat. Can be grown under oaks and pines. Can even grow in large containers. Sensible substitute for: Non-native shrubs/small trees. Attracts: Excellent hummingbird habitat; provides food for fruit-eating birds. Requirements: Element Requirement Sun Sun or part-shade (part-shade best in hot, inland gardens). Soil Adaptable, from rocky or sandy to clay. Likes mildly acidic soils (pH 6.00 to 7.00). Water Occasional to once a month (deep) in summer; Water Zone 1-2 to 2. Fertilizer None needed except in container. Other Use organic mulch. Management: Nice natural form needs little pruning. Pinch tips for fuller grown if desired. Propagation: from seed: fresh seed or cold-moist-treat by cuttings: likely yes Plant/seed sources (see list for source numbers): 11, 13 11/29/16 * California native, but not native to Western Los Angeles County Project SOUND </p></li><li><p>* Beach Sandwort Artemisia pycnocephala (ar-te-MEEZ-ee-uh pik-no-SEF-uh-luh) </p><p> Family: Asteraceae (Sunflower Family) Native to: Central &amp; Northern coast of CA to Oregon; rocky or sandy soils, beach dunes, coastal strand. Growth characteristics: perennial subshrub mature height: 1-2 ft. mature width: 2-3 ft. Perrenial or subshrub, woody at base, with delicate, silky-gray, finely divided foliage. Plant dense, mounded, with a soft silvery appearance. Short-lived (2-5 years). Pollen may cause allergies. Blooms/fruits: Blooms in summer. Small yellow flowers on spikes above foliage. Some find the flowers unsightly and remove the stalks. Fruits are dry capsules with small seeds. Uses in the garden: Often used as an accent plant because of its showy silver foliage quite unique. Works well as a fast-growing filler between slower-growing groundcover plants. Would probably work in pots and planters. Aromatic. Nice cascading over rock walls, in dry shade. Unusual groundcover with look of an elegant Artemisia. Davids Choice cultivar is readily available. Sensible substitute for: Non-native Artemisias (Wormwoods). Attracts: Good bird and reptile habitat: provides cover and seeds for food. Requirements: Element Requirement Sun Full sun (coast) to part shade Soil Sandy to medium well-drained. Moderately alkali soils fine. Water Occasional summer water. Fertilizer None. Other Management: Fast-growing but short-lived. Can cut back in spring. Do not cut into old wood (where there are no buds). Can be sheared during the summer if needed - new foliage will flush out quickly. Gophers love it plant in chicken wire cages if gophers are a problem. Propagation: from seed: yes by cuttings: yes, in summer Plant/seed sources (see list for source numbers): 1, 3, 5, 8-11, 13, 14, 16, 19, 20, 24 2/6/11 * Native to CA but not to Western L.A. Co. Project SOUND </p></li><li><p>*Silver wormwood (Prairie sage) Artemisia ludoviciana (ar-te-ME-see-uh loo-doe-vee-see-AN-uh) </p><p> Family: Asteraceae (Sunflower Family) Native to: Much of North America (Canada to Mexico). Locally in San Gabriel Mountains; on dry slopes and in canyons, in many plant communities including dry prairies, Sage Scrub, Yellow Pine Forest, Red Fir Forest, Creosote Bush Scrub, Pinyon-Juniper Woodland. Growth characteristics: perennial/sub-shrub mature height: 1-2 ft. mature width: 3-5+ ft. Half-woody sub-shrub that spreads via rhizomes. Form is upright to mounded. Leaves are simple and irregularly toothed. Fragrant foliage is white/silvery due to dense, matted hairs; very attractive. Blooms/fruits: Blooms in spring (Feb-Apr) in lowland S. CA. Flowers are small, yellow and not particularly showy. Flowering stalks, which rise above foliage, provide some vertical interest. Uses in the garden: Widely used for white foliage in flower and herb gardens; good choice for mid-border. Often used in natural prairie plantings or as groundcover with native grasses, wildflowers and perennials. Should do fine in large containers. Dense roots hold soil on slopes. Common cultivars: Silver King 2-3 ft tall, spreader; Silver Queen more mounded; Valerie Finnis very white, most mounded and shrub-like of the cultivars. Cultivars widely available. Foliage was used as a medicinal plant (anti-bacterial &amp; anti-fungal), a deodorant and as a ceremonial plant. Sensible substitute for: Non-native white foliage shrubs like Dusty Miller. Attracts: Excellent bird habitat: provides cover and seeds for food. Requirements: Element Requirement Sun Full sun to light shade. Soil Just about any texture - wide tolerance range; slightly acidic to alkali (pH: 5.0-8.0). Water Occasional to almost regular; Water Zone 1-2 to 2 for species; more for cultivars. </p><p>Susceptible to fungal disease with regular summer water. Fertilizer Low dose (1/2 strength) yearly in containers Other Fine with light organic mulches (no deeper than 2 inches) Management: Prune back heavily (or mow) in late fall (or when plants start to look ragged). Propagation: from seed: easy with fresh seed by cuttings: yes; soft- and semi-hard wood. Plant/seed sources (see list for source numbers): 3, 6, 8, 11, 13, 47, 73 11/29/16 * California native, but not native to Western Los Angeles County Project SOUND </p></li><li><p>* Four-wing Saltbush Atriplex canescens (AT-ry-pleks kan-ESS-sens ) </p><p> Family: Chenopodiaceae (Goosefoot Family) Native to: Much of western N. America from the Dakotas to Baja; found in many plant communities from coastal dunes to deserts, on dry, barren flats, slopes, washes usually below 7000 ft. Growth characteristics: woody shrub mature height: 3-6 ft. mature width: 4-8 ft. Semi-deciduous woody shrub with many dense branches. Shape quite variable, but usually a mounded shrub. Foliage a light blue-green, glistens with salt crystals. Numerous leaves on thin, brittle branches. Can be pruned/shaped to a hedge or rounded shrub. Deep roots. Blooms/fruits: Blooms in summer to early fall. Separate male &amp; female plants. Flowers small, green-yellow, on flowering stems not particularly showy. Fruits are dry, winged capsules, each containing a single seed. Seed capsules can be showy and are certainly interesting! Uses in the garden: Use extensively as a shrub and informal hedges in the Southwest, particularly in water-wise gardens. Excellent for hillsides and erosion control. A superb habitat plant. Works well in hot gardens. Tolerates maritime conditions &amp; salty soils/water. Takes up salt &amp; metals. Foliage and fruits can be eaten if no fertilizer used. Excellent choice for habitat gardens. Sensible substitute for: Non-native shrubs. Attracts: Excellent habitat plant with all of the benefits of the Family. Provides cover and nesting sites for small animals &amp; birds. Seeds and foliage (deer, rabbits) provide nutritious food. Requirements: Element Requirement Sun Full sun to light shade. Soil Well-drained soils, including very sandy soils; alkali and salty soils fine. Water Very drought tolerant (Zone 1-2); looks better as Zone 2 (occasional water) Fertilizer None. Other Management: Pretty easy in well-drained soils may die in wet winters in heavy clay. Cut branches back by one-third in winter or shear into a hedge. Propagation: from seed: use year-old dry seed by cuttings: fairly easy Plant/seed sources (see list for source numbers): 1, 3, 8, 10, 13, 14, 16, 21, 24 1/29/10 * Native to CA but not to Western L.A. Co. Project SOUND </p></li><li><p>*Shadscale Atriplex confertifolia (AT-ri-plex kon-fer-ti-FO-lee-uh) </p><p> Family: Chenopodiaceae (Goosefoot Family) Native to: Desert shrublands of the Mojave and Great Basin deserts and surrounding foothills from N. Dakota to OR and S. to TX and CA. Low valleys, alkali flats, foothills and mesas from 2,500 to 7,500 ft elevation in Shadscale Scrub, Creosote Bush Scrub, Sagebrush Scrub. Growth characteristics: perennial shrub/sub-shrub mature height: 1-3 ft. mature width: 1-3 ft. Dense, low-growing shrub with spine-tipped branches. Form is rounded to mounded. Evergreen to partially winter- and drought-deciduous, Leaves are silver-green to gray-green, simple and rounded. Plants have deep, extensive root systems. Plants generally short-lived (less than 10 years). Blooms/fruits: Blooms in spring usually Apr-Jun in S. CA. Plants are dioecious (separate male &amp; female plants). Flowers are small, yellow-green and not particularly showy. Seed clusters are unique and pretty seeds have two papery wings that start pink and fade to gold. Uses in the garden: Usually used in desert gardens, but appropriate for other water-wise settings. Foliage color complements other native shrubs. Fine groundcover, particularly on slopes. Good habitat plant. Likely would do fine in a large container. Seeds, young foliage are edible; older foliage used as salty seasoning for soups, stews. Medicinal (poultice used for aches, chest colds). Sensible substitute for: Non-native shrubs of similar size. Attracts: Excellent bird habitat &amp; animal browse: provides cover and seeds for food. Requirements: Element Requirement Sun Full sun to part-shade. Soil Best in well-drained soils. Any local pH, including alkali. Water Best with occasional summer rain (Water Zone 1-2 to 2); let dry out in fall. Fertilizer None. Other No mulch or inorganic mulch. Management: Prune back in late fall for best shape. Dont over-water in heavier soils. Needs some drought stress for good health. Propagation: from seed: pre-soak seed; rinse several times by cuttings: likely yes. Plant/seed sources (see list for source numbers): 13, 47, 61 11/29/16 * California native, but not native to Western Los Angeles County Project SOUND </p></li><li><p>Nevins Sunflower/Catalina Silverlace Constancea/ Eriophyllum nevinii (con STAN-see-uh nev-IN-ee-eye) </p><p> Family: Asteraceae (Sunflower Family) Native to: S. Channel Islands (Santa Barbara, Santa Catalina, San Clemente Islands); rocky coastal bluffs, coastal sage scrub. Growth characteristics: semi-woody shrub mature height: 2-4 ft. mature width: 2-4 ft. Mounded shrub with white/gray lacy foliage. Branches herbaceous, arising from a woody stem. Young growth covered with dense white hairs. Looks like an elegant Dusty Miller. Widely available cultivar Canyon Silver comes from Santa Barbara Channel Islands. Blooms/fruits: Blooms April-Aug. Flowers are golden-yellow in clusters above the foliage. Seed heads turn attractive dark brown in fall. Uses in the garden: Small size makes it good as foundation plant or for mid-bed in mixed flower beds. Looks great in a silver garden, and wonderful accent with other shrubs. Works well with other Channel Island natives such as Ceanothus leucodermis, Epilobium Catalina, Eriogonum giganteum, and Romneya coulteri. Relatively deer tolerant and good for fire-prone areas. Sensible substitute for: Non-native Dusty Millers, Lavender Cotton (Santolina), white-foliage shrubs Attracts: Excellent nectar source for bees and butterflies. Requirements: Element Requirement Sun Full sun (best) to part-shade Soil Any well-drained Water Low needs once established; needs no summer water in coastal gardens Fertilizer Low needs Other Management: For a dense plant with good form it is best to give a hard pruning in late fall or winter as new growth emerges. Propagation: from seed: probably by cuttings: semi-soft wood cuttings of new growth in summer/fall Plant/seed sources (see list for source numbers): 1-3, 8, 11, 13, 14, 24 8/8/14 </p><p> Project SOUND </p></li><li><p>* Brittlebush Encelia farinosa (en-SEE-lee-uh far-ee-NO-suh) </p><p> Family: Asteraceae (Sunflower Family) Native to: Colorado, Sonoran &amp; Mojave Deserts from CA to Utah, south to Mexico; on south-facing rocky slopes, washes and flats in open oak woodlands, semidesert and desert grasslands, desert scrub, and coastal sage scrub. Growth characteristics: sub-shrub mature height: 3-5 ft. mature width: 3-5 ft. Evergreen (with water) or drought-deciduous shrub from a woody, succulent base. Many-branched with dense, rounded appearance. Leaves are simple, light green to velvety-white. Leaf size varies considerably depending on water availability. Quick-growing. May be short-lived in the garden. Foliage releases chemicals that inhibit the growth of other plants (allelopathy). Blooms/fruits: Blooms primarily in spring (Mar-May), but may bloom sporadically depending on rains. Flowers are typical yellow sunflower heads on bare stalks above the foliage. Very showy in bloom, when there may be hundreds of flower heads. Flowers are sweetly fragrant. Uses in the garden: Often used for erosion control on slopes. Nice addition to the Silver Garden. Excellent choice for desert-themed garden, rock garden, at the back of water-wise mixed beds. Excellent choice for hot, dry gardens; does not do well near the coast (too foggy &amp; damp). Sensible substitute for: Non-native bush sunflowers. Attracts: Excellent bird habitat: provides cover and seeds for food. Attracts many insect pollinators including butterflies and native bees. Requirements: Element Requirement Sun Full sun; fine with reflected heat. Soil Sandy or rocky well-dr...</p></li></ul>