Colleen Johnsen's California Plants
Class #62: Plant Materials And Design A, Lab #15

Class #62: Plant Materials And Design A, Lab #15


Botanical Name: Quercus suber
Botanical Pronunciation: KWER-cuss SUE-burr
Common Name: Cork Oak
Diseases: Amtriracnose
Growth: 60-80'tall x 40-50' wide
Light: Sun
Pest: Thrips, mites, ahhids, and caterpillars.
Problems: None
Type: Broadleaf evergreen deciduous tree
Water: Moderate
California Native: No
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Botanical Name: Prunus cerasifera
Botanical Pronunciation: PRUNE-us sarah-SIF-er-ah
Common Name: Purple Leaf Plum
Family Name: Rosaceae
Diseases: Shot hole fungus (control) prune effected areas. Fireblight and crown rot (control) restrict water in clay soil.
Flower: White to pink in late winter.
Growth: Fast, 20' x 25' spread.
Landscape Use: Attracts bees, cut/dried flowers, deer proof, lawn tree, screen, shade plant, specimen tree, and focal point.
Light: Sun on the coast and inland.
Location: Capitola Mall parking lot.
Pest: Aphids, spider mites, scale and borers (control) increase water.
Problems: Short live 25 years, suckers & excess litter.
Propagation: By cuttings, seeds and grafting.
Pruning: Remove dead limbs and shape when young.
Tolerance: Deer, drought, heat, lawn irrigation, neglect but needs to be pruned for structure, and smog/dust.
Type: Deciduous tree that is dense, round, semi-open, spreading and upright.
Water: Moderate to dry between.
California Native: No
Description: Hardy to 0 degrees.
Sunset zone: 3-22.
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Botanical Name: Eucalyptus nicholii
Common Name: Willowleaf Peppermint
Diseases: None.
Flower: White ball shaped.
Growth: 40' X 20'
Pest: Long horned bore.
Problems: Weak wooded, fire hazard, excess litter.
Type: Broadleaf evergreen tree.
Water: Moderate to dry between.
California Native: No
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Botanical Name: Pittisporium undulatum
Common Name: Victorian Box
California Native: No
Description: TYPE: Broadleaf evergreen tree.

GROWTH: 25-30' x 15-20'
Fast growing.

LIGHT: Sun to shade on the coast.

WATER: Moderate to dry between.

FLOWER: Yellow to white.

PROBLEMS: Invasive and shallow rooted.

PEST: Aphids and scales.

DISEASES: None
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Botanical Name: Acer macrophyllum
Botanical Pronunciation: A-sir / mac-raw-fy-lum
Common Name: Big Leaf Maple
Family Name: Aceracear
Diseases: Verticillium wilt.
Growth: 30-95' x 30-50' Fast growing.
Light: Sun to shade on the coast.
Location: Nisene Marls State Park
Pest: Aphid and catipillers.
Problems: Shallow rooted, drain clogger and excess litter.
Type: Deciduous tree.
Water: Ample moisturer but dry between.
California Native: Yes
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Botanical Name: Pyrus kawakamii
Botanical Pronunciation: pie-RUSS COW-AH-caim-aee-i
Common Name: Evergreen pear
Diseases: Fungal leaf spot and fire blight (control) avoid overhead watering and prune affected parts.
Flower: White single petals in clusters.
Growth: 30-40' X 25 - 30'+ average to fast growth.
Landscape Use: Attracts bees/birds, container plant, espalier, lawn tree, screen, shade plant, specimen plant and patio tree.
Light: Sun to part shade on coast and inland.
Location: South of parking structure.
Pest: Aphids (control) evaluate watering.
Problems: Suckers at base and weak wooded branch breakage.
Propagation: By cuttings, seeds and grafting.
Pruning: Will tolerate shearing to enhance form.
Tolerance: Drought, heat, lawn irrigation, smog/dust but not poor drainage.
Type: Broadleaf evergreen deciduous semi tree.
Water: Moderate to dry between.
California Native: No
Description: Hardy to 18-20 degrees.
Sunset Zones: 8,9,12,-24
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Botanical Name: Grewia caffra
Common Name: Lavender Starflower
California Native: No
Description: Not studied but grows well in Santa Cruz

TYPE: Broadleaf evergreen shrub or
with prunning groundcover.

GROWTH: Fast growing,
6-10' x 6-10' spread.

LIGHT: Sun on caost.

WATER: Moderate to dry betweeb and
none in summer.

FLOWER: Lavender star shape, spring thru
fall.

PROBLEMS: None.

PEST: None.

DISEASES:
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Botanical Name: Pittosporun crassifolium
Common Name: Karo
California Native: No
Description: grows well in S.C.

TYPE: Broadleaf evergreen shrub.

GROWTH: Average growing,
20' x 15' spread.

LIGHT: Sun to part shade on the coast.

WATER: Moderate to dry between.

FLOWER: Maroon funnel shape.

PROBLEMS: None.

PEST: Aphids.

DISEASES: Scale.
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Botanical Name: Geijera parviflora
Botanical Pronunciation: Geijera parviflora
Common Name: Australian Willow
Family Name: Rutaceae
Diseases: Aphid and scale to control increase watering.
Flower: Creamy white funnel shape in early spring.
Growth: Fast growing with water, 25-35' x 20-30'.
Landscape Use: Background, screen, specimen, street tree and nice near water.
Light: Sun on the coast.
Pest: Aphids and scale.
Problems: Invasive.
Propagation: By cuttings.
Pruning: Thin competing limbs when young.
Tolerance: Drought, winds, smog/dust, sea coast, insect and neglect.
Type: Broadleaf evergreen tree but not in the willow family.
Water: Dry between.
California Native: No
Description: Hardy to 24 degree.
Sunset Zones 8,9, 12-24










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Botanical Name: Arctostaphylos edmundsii
Botanical Pronunciation: ark-toe-staff-eh-los ed-mund-zee-i
Common Name: Little Sur Manzanita
Family Name: Ericaceae
Diseases: None.
Flower: Bell shape white to pale pink in December - January
Growth: 4-12" heigh x 4-6', average growth.
Landscape Use: Attracts bees/birds, bank cover, deer proof, groundcover and seacoast.
Light: Full fun to part shade on the coast and part shade inland.
Location: UC Arboretum.
Pest: Flat head borer (control) None.
Problems: Crown rot in dense soils.
Propagation: By cuttings and seeds.
Pruning: None required. To control growth frequent pinching during growing season.
Tolerance: Deer, drought, seacoast and winds.
Type: Broadleaf evergreen groundcover. They are dense mat forming and trailing.
Water: Dry between to none in summer.
California Native: Yes
Description: Low mat area groundcover that likes well drained soil.

Hardy to 15 degrees.
Sunset zones 6-9, 14-24.
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Botanical Name: Metrosideros excelsus
Botanical Pronunciation: Meh-trow-SIDE-er-us ex-CELL-suss
Common Name: New Zeland Christmas Tree
Diseases: None.
Flower: Red 1-2" clusters.
Growth: Average, 15-30' x 15-30' spread.
Light: Sun on the coast.
Pest: None.
Problems: Shallow rooted.
Type: Broadleaf evergreen tree or shrub.
Water: Moderate to none in summer.
California Native: No
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Botanical Name: Metrosideros excelsus
Common Name: New Zealand Christmas Tree
Family Name: Myrtareae
Diseases: None.
Flower: Dark red clusters in June and July about 2-4
Growth: 15-30' X 15-30' spread that is fast to average growth.
Landscape Use: Attracts birds, background, hedge, screen, seacoast, shrub mass, wind break and specimen.
Light: Sun on the coast and part sun inland.
Pest: None.
Problems: Pavement buster if confined.
Propagation: By cuttings.
Pruning: as disered
Tolerance: Drought, winds, sea coast, insects, deer and neglect.
Type: Broadleaf evergreen tree or shrubthat is dense.
Water: Moderate.
California Native: No
Description: Hardy to 25 degrees.
Sunset zones 17, 23-24
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Botanical Name: Heuchera spp.
Botanical Pronunciation: HUKE-eer-ah
Common Name: Coral Bells
Family Name: Saxifragaceae
Diseases: Damping off of flower stems, too much water.
Flower: White, pink, rosy pisnk, crimson depending on cultivar.
Growth: 6-18" x 1-4' average growth.
Landscape Use: Attracts bee/birds, border/edging, container plant, cut /dried flowers, groundcover, meadow/grassland, pond/stream, restoration, rock garden, seacoast, plant mass and under oaks.
Light: Full sun to shade on the coast, partial to full shade inland.
Location: Behind Hort. nursrery bldg/
Pest: Mealy bugs.
Problems: None.
Propagation: Division and seed.
Pruning: None required but dead head flowers.
Tolerance: Drought, insects, lawn irrigation and seacoast.
Type: Broadleaf evergreen herbaceous perennial, ground cover.
Water: Moderate.
California Native: No
Description: Hardy to 0 degrees.
All sunset zones.
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Botanical Name: Sollya heterophylla
Common Name: Australian Bluebell
Diseases: Crown rot in heavy soil.
Flower: Light blue bell shape cluster in the spring.
Growth: 4-6' X 4-6' Average to fast growth.
Light: Sun to part shade on the coast.
Pest: Aphids and scale.
Problems: None.
Type: Broadleaf evergreen shrub or vine.
Water: Dry between.
California Native: No
Description: MENTIONED or REVIEWED
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Botanical Name: Dymondia margaritae
Common Name: Dymondia
California Native: No
Description: MENTIONED:
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Botanical Name: Alyogyne huegelii
Common Name: Blue Hibisscus
Family Name: Malvaceae
Diseases: None.
Flower: Lavender to dark blue with 5 overlapping petals.
Growth: 8-15' X 5-8' fast in youth.
Landscape Use: Container plant, espalier, fire retardant, rock garden, screen, shrub mass and specimen.
Light: Sun on the coast and inland.
Pest: Scale, aphids, gophers.
Problems: Short lived, 10 years.
Propagation: By cuttings and seeds. Seeds are easier.
Pruning: Regular tip pruning to keep dense is needed.
Tolerance: Drought, wind, smog/dust, sea coast, heat and neglect.
Type: Broadleaf evergreen tree or shrum that is dense with pruning, spreading, upright, and globular.
Water: Dry between.
California Native: No
Description: Hardy to 15 -23 degrees.
Sunset zines: 15-17, 20-24.
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Botanical Name: Quercus ilex
Common Name: Holly Oak
Family Name: Fagaceae
Diseases: Soott mold.
Flower: Yellow green Catkin that is 1-2" X 1/8" in the spring
Growth: 40-70 ' X 40-70 ' average growth.
Landscape Use: As a hedge - unusal, lawn tree, screen, sea coast, shade, specimen, and wind break.
Light: Sun on the coast and inland.
Pest: Aphids.
Problems: Suckers.
Propagation: By seeds.
Pruning: Can tolerate shearing or more severe pruning.
Tolerance: Drought, winds, smog/dust, sea coast, heat, insect or disease resistant, deer, neglect and lawn irrigation.
Type: Broadleaf evergreen tree.
Water: Moderate to dry between to none in summer.
California Native: No
Description: Hardy to 15 degrees.
Sunset zones: 4 - 24.
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Botanical Name: Solanum jasminoides
Common Name: Potatoe Vine
California Native: No
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Botanical Name: Echium candicans
Botanical Pronunciation: ECK-ee-uhm
Common Name: Pride of Madeira
Family Name: Boraginaceae
Flower: In the spring - summer cylindrical thyrsoid panicle in blue to purple, w/red stamens.
Growth: 5-6'heigh x 6-10'spread. Fast in youth growing.
Landscape Use: Large bold textured rounded shrub with striking flower display. Plant in perennial borders.
Light: Sun on the coast and inland.
Location: Behind and around Bus stop of 600 building.
Pest: None.
Problems: Allelopathic, fire hazzard, invasive/reseeds, short lived in gardens and week wooded.
Propagation: By cuttings, seeds.
Pruning: Deadhead flowers as desired, tip prune as needed or prune all the way to ground.
Tolerance: Deer, drought, heat, insects, neglect, seacoast, smog and winds.
Type: Broadleaf evergreen shrub in a dense oval or round, semi-open, spreading and upright form.
Water: Monthly and none in summer.
California Native: No
Description: Hardy to 25-30 degree
Sunset zones 14-24
Great coastal plant, reseeds readly and attracts humming birds.

Botanical Name: Liquidambar styraciflua
Botanical Pronunciation: Lick-quid-AM-bar sty-rass-eh-FLUE-eh
Common Name: Liquidambar - sweet Gum
Family Name: Hamamelidaceae
Diseases: None
Flower: Insignificant.
Growth: 40-80' X 15-30' spread, fast to average.
Landscape Use: Background, deer resistant, screen, speciment plant and climbable.
Light: Sun to part sun on the coast and inland.
Pest: Tent caterpillars (control) pruning out and destroy, aphids (control) by evaluate watering. Squirrels don't feed.
Problems: Drain cloggers, excess litter, pavement buster, shallow rooted suckers and week wooded branches breakage very common.
Propagation: By seeds and grafting.
Pruning: Corrective pruning.
Tolerance: Deer, heat, lawn irrgation, poor drainage and smog/dust.
Type: Deciduous tree that is dense, oval, semi-open, spreading and upright.
Water: Ample, none in summer.
California Native: No
Description: Hardy to 0 degrees.

Sunset zones: 3-9, 14-24.