Presentation on theme: "Cornus alternifolia “pagoda dogwood”"— Presentation transcript:
1Cornus alternifolia “pagoda dogwood” SIZE: Small treeHABIT: Horizontal branching; pyramidal
2FOL: Dark green in summer; reddish-purple in fall (not showy)
3BARK: Variable, first and second year stems are often brown to purple in color. Older bark is gray brown
4FL. & FR. : Yellowish-white in June in 2” flat-topped cymes (fragrant FL. & FR.: Yellowish-white in June in 2” flat-topped cymes (fragrant!); Fruit = black drupe in summer (not showy)
5CULTURE: Transplant when young; requires a moist, cool, acidic soil and partial shade (fastidious) PESTS: Leaf spot, twig blight and canker!!USE: Naturalizing; gives horizontal linesMISC.: Best left in and along woods...
6Cornus florida “flowering dogwood” SIZE: Small to medium treeHABIT: Low-branched withhorizontal lines, flat-toppedcrown at maturity
8BARK: Reminiscent of an alligator’s back BARK: Reminiscent of an alligator’s back. Broken into small square and rectangular blocks.
9FL. & FR.: Flowers not showy, clustered in an umbel; bracts are emarginate and white, 3-4” across in May; Fruit = glossy red 1/3” ovoid drupe, clustered, persist
10CULTURE: Difficult to transplant (B & B best); requires soil amended with organic matter; roots must remain cool and moist; partial shade best; does NOT tolerate pollution or full sun!PESTS: MANY! anthracnose (Discula), powdery mildewUSE: Specimen; accent, naturalizing, attracts wildlifeMISC.: A 4-season plant! Marginally hardy
14Cornus kousa “kousa dogwood” SIZE: Small to medium treeHABIT: Vase-shaped when young;rounded with horizontal branchingwhen mature
15FOL: Dark green in summer; red-purple in fall (sometimes scarlet)
16BARK: Exfoliating with age to form a mix of gray, tan, and rich brown
17FL. & FR.: Flowers not showy; bracts 4” across, white, pointed in June; Fruit = drupe clustered into a globose syncarp on a 2” pendulous stalk
18CULTURE: Difficult to transplant (B & B best); requires moist, acidic, well-drained soils; full sun is bestPESTS: None serious, some leaf spotUSE: Foundation; specimenMISC.: Exfoliating bark; beautiful 4-season plant; more cold-hardy than C. florida; fruit is edible and sweet but mealy
23Cornus mas “corneliancherry dogwood” SIZE: Medium shrub or small treeHABIT: Typically multistemmed and oval-rounded; branches to the ground
24FOL: Glossy dark green in summer; red-purple in fall possible but not likely
25BARK: Scaly and flaky, often gray-brown in color
26FL. & FR.: Yellow 3/4” umbels in March-April before leaves (showy); Fruit = 1/2” oblong red drupe in July (hidden by foliage)
27CULTURE: Transplant when young (B & B); soil and pH adaptable; sun to partial shade PESTS: None seriousUSE: Shrub border, hedge, screen, foundation plantMISC.: Fruit is edible and is made into preserves or syrup
29Hippophae rhamnoides “seabuckthorn” SIZE: Medium to large shrubHABIT: spreading and irregularly mounded/arching
30FOL: Silver-green in spring, summer and fall FOL: Silver-green in spring, summer and fall. Drop off without any change
31STEM: Stellately pubescent with silvery or brownish scales
32FL. & FR. : Dioecious. Flowers not showy FL. & FR.: Dioecious. Flowers not showy. Female plant has EXCELLENT 1/3” axillary, globose, orange fruits that persist into winter.
33CULTURE: Difficult to establish. Prefers infertile, sandy soils CULTURE: Difficult to establish. Prefers infertile, sandy soils. Full sun. Tolerates salt sprayPESTS: None seriousUSE: Outstanding plant for winter fruit effect. Good for coastal areas and poor sites.MISC.: Fixes nitrogen. Difficult to propagate.
34Caragana arborescens “Siberian peashrub” SIZE: Medium shrubHABIT: Upright, yet mounding
35FOL: Light, bright green in summer; yellow-green in fall (not showy)
36STEM: Young stems are green in color with pale lenticels STEM: Young stems are green in color with pale lenticels. Mature stems become more brownish
37FL. & FR.: Bright yellow 1” long, often clustered, axillary, in May as leaves open; Fruit = 2” long brown pod in August
38CULTURE: Easy; tolerates poor, dry, basic soils; tolerates drought and salt; tolerates wind and cold PESTS: None seriousUSE: Hedge, screenMISC.: Fixes nitrogen; ‘Pendula’= a grafted weeping form
40Cercis canadensis “Eastern redbud” SIZE: Small treeHABIT: Rounded crownat maturity
41FOL: New leaves are reddish-purple in spring; dark green in summer; usually a poor yellow in fall
42BARK: Mature bark is brownish with patches of orange inner bark
43FL. & FR.: 1/2” pink-red in clusters in April on old wood before leaves; Fruit = 2-3” brown pod (persistent)
44CULTURE: Tolerates most soils except wet sites; pH adaptable; full sun to partial shade; marginally hardy herePESTS: CankerUSE: Specimen; naturalizingMISC.: Only select plants grown in cold areas or seed collected from these areas. ‘Forest Pansy’ is a purple-leaf cultivar but not hardy here
47Magnolia x soulangiana “saucer magnolia” SIZE: Small tree or large shrubHABIT: Pyramidal to upright elliptic at maturity
48FOL: Medium green in summer; fall color is a poor yellow-brown
49FL. & FR.: Campanulate, upright, ” in diameter, white to pink - purple, 9 tepals, before leaves in April; Fruit = aggregate of follicles (not showy)
50CULTURE: Fleshy roots therefore transplant B & B; require moist, organic sl. acidic soils; full sun; protect from direct southern light exposure; protect from windPESTS: Mildew, leaf spotsUSE: Specimen, accent
51MISC.: Freeze/frost often damages flowers. Many cultivars...
52Magnolia stellata “star magnolia” SIZE: Medium to large shrubHABIT: Dense oval to rounded
53FOL: Dark green in summer; yellow-bronze in fall (not showy)
54BARK: Smooth and gray, similar to other magnolias
55FL. & FR.: 4” diameter, white strap-like tepals, before leaves in April; Fruit = aggregate of follicles (not showy)
56CULTURE: Fleshy roots therefore transplant B & B; require moist, organic sl. acidic soils; full sun; protect from direct southern light exposure; protect from wind; tolerates city dirtPESTS: None seriousUSE: Specimen, accentMISC.: Many cultivars available...
57Chionanthus virginicus “white fringetree” SIZE: Large shrub or small treeHABIT: Open and irregular (scraggly)
58FOL: Medium olive-green in summer; yellow-green in fall (variable)
59BARK: Gray, smooth on young branches, becoming slightly ridged with age
60FL. & FR.: Dioecious; 1” long & 1/16” wide, white, strap-like petals, clustered in hanging panicles, with the leaves in May; Fruit = 1/2” bluish drupe (on female)
61CULTURE: B & B in spring best; requires deep, moist, organic, acidic soils; full sun; somewhat difficult to transplantPESTS: None seriousUSE: Specimen, accent, groups, naturalizingMISC.: Male plants are showier than female
66FL. & FR.: Terminal, 1-3” panicles of white, pungent flowers, in June; Fruit = shiny black drupe in September and persists through winter
67CULTURE: Transplants easily; soil and pH adaptable; full sun to partial shade; tolerates city dirt; tolerates dry soils but will NOT tolerate wet sites; tolerates severe pruningPESTS: Anthracnose twig blight (canker)USE: Hedges (flowers often pruned off)MISC.: Overused! Many cultivars (including variegated); less cold-hardy than L. amurense
68Syringa reticulata “Japanese tree lilac” SIZE: Small tree or large shrubHABIT: Oval to rounded crown
69FOL: Dark green in summer; poor yellow fall color (not showy)
70BARK: Cherry-like with a reddish brown color and prominent lenticels
71FL. & FR.: Terminal, 6-12” creamy-white, fragrant panicles, in June; Fruit = warty, dehiscent, valvate capsules (not showy)
72CULTURE: Prefers moist, organic, sl CULTURE: Prefers moist, organic, sl. acidic soils; full sun; prune off spent flower paniclesPESTS: None seriousUSE: Specimen; street tree; mass; foundationMISC.: Flowers in alternate years. ‘Ivory Silk’ is a single-trunked tree form.
73Syringa vulgaris “common lilac” SIZE: Medium shrubHABIT: Upright, irregular, leggy when mature
84FL. & FR.: Dioecious; yellowish 1” umbels in May (not showy); Fruit = 1/4” black drupe in fall (not showy)
85CULTURE: Easily transplanted; tolerates tough condtions such as urban environments; PESTS: Alternate host for oat rust (Puccinia coronata)USE: Screen or hedge; will grow where other plants will not! Attracts wildlifeMISC.: Weedy! Birds love the fruit!
86Rhamnus frangula “glossy buckthorn” SIZE: Large shrub, sometimes a small treeHABIT: Upright, open crown; gangly
87FOL: Glossy dark green; poor yellow-green fall color
88FL. & FR.: Not showy; Fruit = 1/4” red-black drupe in August (not showy from a distance)
89CULTURE: Transplants easily; full sun or partial shade; tolerates most conditions PESTS: Few; stem canker may be a problemUSE: Hedge; attracts wildlifeMISC.: ‘Asplenifolia’ = fine textured foliage; ‘Columnaris’ = narrow, upright form with wavy branches (used in the midwest). Also weedy!