Transcript of Hort 28 McConnell Arboretum and Gardens. Perovskia atriplicifolia, Russian sage.
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- Hort 28 McConnell Arboretum and Gardens
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- Perovskia atriplicifolia, Russian sage
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- Native to w. and central Asia ID: woody-based clump 4 ft x 4 ft
with many upright stems; lvs gray-green, opposite, aromatic, lower
are deeply cut, upper merely toothed; flrs in sprays, make a purple
haze Value: long-lasting haze of purple bloom (June to frost), heat
and drought tolerant, sun tolerant Care: trim spent blossoms to
extend bloom; little water; can be invasive in some areas
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- Solanum laxum, potato vine nightshade family--Solanaceae Vine
for fence, trellis At edge of its hardiness in Reddingmay be killed
in cold winter Poisonous foliage (all nightshades) and fruits (some
nightshades)
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- Solanum laxum, potato vine nightshade family--Solanaceae
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- Rosa chinensis Mutabilis China rose rose family--Rosaceae
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- Rosa chinensis Mutabilis 4-ft shrub, may climb if supported
Flowers single, change color, borne all summer til frost Good
low-care rose for mixed shrub border
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- Rosa Sally Holmes Roses have alternate, pinnately compound
leaves WiTH STIPULES Nodal spines, internodal prickles Single
wild-type roses have 5 petals, 5 sepals, numerous stamens
surrounding a cluster of simple pistils; fruit is a rose hip
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- x Chitalpa tashkentensis Pink Dawn catalpa
family--Bignoniaceae
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- x Chitalpa tashkentensis Pink Dawn Intergeneric hybrid between
Chilopsis (desert willow) and Catalpa; combines drought tolerance
with large flowers ID: Decidous tree 20-30 x 20-30ft; leaves long
and narrow; flowers tubular, in clusters Value: drought tolerant,
flowers, shade Problems: messy Care: Do not overwater
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- Vitex agnus-castus, Chaste tree mint family--Lamiaceae
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- Vitex agnus-castus, Chaste tree Native to Europe Name means
chaste lamb; vitex refers to plaiting, as in fences ID: arborescent
shrub to 25 ft; shrubby perennial where colder; clusters of purple
flowers; lvs aromatic, gray-green, palmately compound Value:
flowers all season, nice leaves, handle as a shrub or small tree,
can be underplanted; takes moderate wate, resists oak root fungus
Care: moderate water; prune as desired (blooms on new growth)
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- Spiraea douglasii, Douglas spiraea, rose family--Rosaceae
Native to PNW (N. Cal to BC) ID: deciduous shrub to 6 ft x 20 ft;
tall narrow pink flower clusters; lvs narrow, to 3.5 in., green
above and velvety white beneath Value: takes swampy conditions,
wild plantings near streams; has pink flrs; Native Americans used
for arrow shafts, digging sticks Care: Likes moisture, acid soil;
can be invasive in moist situation
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- Spiraea douglasii, Douglas spiraea, rose family--Rosaceae
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- Amorpha californica, California false indigo pea
family--Fabaceae Shrubs, 6-8 ft Purple flower stalks with orange
stamens Tiny erect pea pods Pinnately compound leaves
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- California false indigo, Amorpha californica Food plant for
California dogface butterfly (state butterfly)
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- Calycanthus occidentalis, western spicebush Spicebush
family--Calycanthaceae George Hartwell
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- Calycanthus occidentalis, Western spicebush Deciduous shrub,
can become large and rangy; prune to control size, but will
sacrifice one years flowers Spicy odor; some smell fishy, purchase
or propagate when in bloom to be sure Grows in foothills around
Shasta Lake, Whiskeytown Lake
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- Calycanthus occidentalis, Western spicebush Native to
California and north, growing along streambanks or moist hillsides
ID: deciduous shrub, 10 x 10 ft; ovate, entire, aromatic leaves;
magnolia-like maroon flowers Value: good in shade, nice flowers,
nice winter fruits, yellow fall color Care: moderate water; blooms
on current seasons growth; remove crowded stems annually Warning:
Seeds can cause convulsions
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- Woodwardia fimbriata, giant chain fern
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- Native to California, along streams ID: deciduous fern to 5 ft
(can be 9 ft!); leaves pinnately divided (how many times??); no
flowers (ferns reproduce by spores Value: gorgeous green fern, not
invasive Care: partial to full shade; needs water; use near pond, a
shaded wall, even shaded seep in desert
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- Fern Life Cycle
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- Verbena bonariensis, tall verbena Verbena family--Verbenaceae
Opposite leaves narrow & scratchy Tall, see through Prolific
seeder
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- Verbena bonariensis, tall verbena
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- Native to South America; naturalized in parts of California ID:
wispy shrub, 6 x 3 ft, airy branching stems; flrs tubular, purple,
in dense clusters; lvs mostly basal Value: drought and heat
tolerant; airy quality, purple flrs Care: little water, deadhead
for rebloom; self sows freely
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- Vitis californica, California wild grape Riparian forest is
relict of 20 million years ago Trees winter deciduous Makes good
farmland, so 90%+ now converted for agriculture Wild grape, Vitis
californica, along stream corridors below 4000 ft. elev. is an
indicator of this habitat Rogers Red is a hort form
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- Vitis californica, California wild grape
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- Buddleia x weyeriana Honeycomb, Honeycomb butterfly bush
Scrophulariaceae
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- Buddleia x weyeriana Honeycomb, Honeycomb butterfly bush Large,
semi-evergreen shrub that attracts butterflies Takes moderate
water, sun Prune after bloom, by cutting out the oldest stems at
the base of the plant This is one of the better butterfly bushes,
that fills a gap in bloom, is fragrant, and is long lasting without
too much deadheading
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- Buddleia davidii, butterfly bush Scrophulariaceae
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- Rhus lancea, African sumac, AnacardiaceaeCashew family
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- From South Africa, called Karee Extremely drought-tolerant tree
or large shrub Dioecious--sexes separate, pollen allergenic
Requires some fussing to look its best (suckers) Fruit is edible
and has been used to make beer
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- Abelia x grandiflora, Glossy abelia, Caprifoliaceae;
honeysuckle family Cross between two Chinese species Grows 8 x 5
ft. Evergreen or semi- evergreen: loses leaves at 15 F., freezes to
ground at 0 F (but does not die); fruit clusters interesting, flrs.
white and fragrant, bloom summer and fall Leaves opposite!!
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- Platanus racemosa, California sycamore leaf lobes entire, very
hairy underneath; fruits spherical, zigzag on stalk
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- Platanus racemosa, California sycamore
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- Artemisia Powis Castle sunflower family--Asteraceae
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- Philadelphus lewisii, wild mock orange hydrangea
family--Hydrangeaceae
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- Philadelphus lewisii, wild mock orange Arching branches
Opposite leaves with widely spaced teeth, 3-veined from the base
4-petaled fragrant flowers Blooms on last years wood
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- Clerodendrum bungei, Cashmere Bouquet mint
family--Lamiaceae
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- Tropical look Needs regular water, shade Large opposite leaves
with distinctive odor
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- Erigeron karvinskianus, Santa Barbara daisy sunflower
family--Asteraceae Pink and white daisies with yellow centers
Drought tolerant, full sun Mounded form
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- Erigeron karvinskianus, Santa Barbara daisy
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- Ulmus glabra Camperdownii, Camperdown elm elm
family--Ulmaceae
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- Ulmus glabra Camperdownii, Camperdown elm Large trees, weeping
Leaves double-toothed, edges not meeting at base (oblique or
asymmetric base); very rough to touch Branches will touch
ground
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- Hydrangea macrophylla Bigleaf Hydrangea
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- Opposite leaves 6 inches long Simple leaves
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- Hydrangea macrophylla Bigleaf Hydrangea Inflorescence is a
corymb Bloom color affected by soil pH. Acidic soil (pH below 6)
flowers are blue Alaline soil (pH above 6) flowers are pick