Test 1 Flashcards
Thorny Elaeagnus (Elaeagnus pungens)
Leaves- Alternate; simple; evergreen, Silver sheen to lower surface, Translucent scales-dots/depressions/pits. Stem- covered in scales & 2-3” thorns, Grows 10-15 ft high, Zones 6-10, Fast growth rate. Habit- Long shoots arise from all areas, Dense, spreading; can get out of control. Landscape value- Best in large property, Highway borders in South; rest areas, Good for banks, hedges, screens, natural barriers.
Yaupon (Ilex vomitoria)
Leaves- Alternate, simple, evergreen, Shallowly toothed, New growth = purplish; then lush green. Grows 15-20 ft high; less in spread, Zones 7-10, Medium to fast growth rate. Habit- Upright irregularly branch shrub or tree, Suckers to form thickets. Culture- Adapts to extreme dry & wet soils, Tolerant to salt spray, One of the most adaptable evergreens in South. Landscape Value- Screens, hedges, barriers, specimens, Takes pruning well, Good resistance to disease & insects.
Nandina (Nandina domestica)
leaves- Alternate, bi- to tri- pinnately compound, 12-24” wide/long, Color = purplish red (new); blue green (older); reddish in winter, Evergreen. Can grow 6-8 ft high; less in spread, Zones 6-9, Medium growth rate. Habit- Upright; leggy at base with flat top, Can spread by rhizomes; can make large colonies. Fruit- Nice rounded bright red berry, Ripe Sept-Oct; persists through winter. Culture- Wet or dry soils; sun or shade (very durable), Prune older stems to make dense. Landscape value- Presently not popular, Seen more as older establishments. Dwarf Cultivars- ‘Firepower’, ‘Blush Pink’.
Oleander (Nerium oleander)
Leaves- Opposite or whorls, Simple, entire, Leathery, dark green. Zones 8-11, Medium to fast growth rate. Fruit- 5-7” pods in summer to fall. Culture- High salt, wind, & drought tolerance (coastal adapted), Full sun/partial shade. Landscape Value- Borders/screens; specimen, Grouped in coastal areas (salts/wind), Good heat tolerance, Over 400 cultivars.
Japanese Pittosporum (Pittosporum tobira)
Leaves- Alternate, simple, obovate, entire, Rounded apex & tapers to petiole, Evergreen. Grows 10-12’ high; spreads 1-2 X height, Lower zone 8 to 10, Slow growth rate, Flowers give off orange fragrance (April-May). Habit- Dense, compact, spreading; impenetrable. Culture- Sandy to clay soils; well drained; acid or alkaline, Full sun or heavy shade, Tolerates heavy pruning & salts. :andscape Value- Under trees or mass screens, barriers, hedges,Dwarf & variegated forms.
Japanese privet (Ligustrum japonicum)
Leaves- Opposite, simple, entire, Evergreen, leathery, lush dark green. Stem has raised lenticels, Grows 6-18’ high 6-12’ wide, Medium growth rate, Zones 7-10, Flowers are white, 2-6” high & wide, Their odor can be offensive. Habit- Dense; can be tree form; often disfigured by pruning. Culture- Varied soils; sun or shade; no wetland, Withstands heavy pruning. Landscape Value- Favorite in South, Singles, screens, hedges, topiary, containers.
Border Forsythia (Forsythia x intermedia)
Leaves- Opposite, simple, 3-5” long, Toothed beginning ¼ to ½ up leaf. Stem- Squarish or 4-sided; cane-like, Abundant lenticels. Size and growth rate- 8-10 ft high x 10-12 ft wide, Fast. Hardiness- Zones 4-5 vegetative, Zones 6-9 flowering. Flowers- Pale to deep yellow, Abundant in March, Can wither in spring freeze, Can be killed in zone 5. Culture- Full sun for max flowering, Prune after flowering: old stems or to ground. Habit- Deciduous; can sucker; stems can grow varied direction. Landscape value- Used for flowering, Not best for foundation, More for property borders/screens.
Indian Hawthorn (Rhaphiolepis indica)
Leaaves- Alternate, simple, ovate, evergreen, May see: end of stem = entire; lower stem = serrate. Size- 4-6’ high & wide; some > 10’. Hardiness- Zones 7-10. Habit- Dense, rounded shrub. Flowers- Perfect, white, 15-20 stamens & 2-3 styles, April-May. Culture- Moist, well-drained soils,Takes drought & salts well, Sun or shade, Often gets leaf spot disease. Landscape Value- Mass, unpruned hedge; often close spacing, Rounded texture or pruned hedge, Flower effect. Disease issues- Entomosporium leaf spot, Creates circular red/purplish spots w/ gray centers, Lesions then get a yellow halo around them, Entire leaf may turn red followed by defoliation, Must clear out casted leaves from underneath plant. Control- Fungicides (chlorothalonil), Tolerant cultivar (Eleanor Tabor), Remove infected branches and casted foliage.
Littleaf boxwood (Buxus microphylla)
Leaves- Opposite, simple, obovate, rounded, evergreen, entire, Medium green & turning yellower in winter. Size and Growth Rate- 3-4’ high x wide, Slow. Hardiness- Zones 6-9. Habit- Compact, dense branching. Culture- Well-drained soil, Likes mulching; cool roots, Full to moderate sun; some shade in South. Landscape Value-Excellent hedge, Edges, gardens, foundation.
