Carya cordiformis
BITTERNUT HICKORY
- Open, broadly columnar with an irregular oval to rounded crown
- Distinctive sulphur-yellow buds
- Male and female flowers
HEIGHT: 15-20 m · SPREAD: 14-15 m
Carya illinoinensis
HARDY PECAN
- Large deciduous tree with rounded spreading crown
- Medium green foliage maturing to yellowish green in summer
- Insignificant yellow flowers in spring
HEIGHT: 25-30 m · SPREAD: 20-25 m
Carya ovata
SHAGBARK HICKORY
- Irregular oval-rounded growth habit
- The bark of mature trees is dark gray to brown and exfoliates in long strips
- Compound leaves are dark green with long and narrow pointed glossy leaflets
HEIGHT: 22-25 m · SPREAD: 15-17 m
Caryopteris incana Sunshine Blue® II ('SMNCVH') (PP28093, CPBR)
SUNSHINE BLUE® LL BLUEBEARD
- Proven Winners® ColorChoice®
- Improved hardier cultivar that replaces Sunshine Blue® (Jason)
- Deep blue-purple flowers on the ends of the new growth
HEIGHT: 80-100 cm · SPREAD: 80-100 cm
Caryopteris x clandonensis 'Dark Knight'
BLUEBEARD
- Deep blue-purple flowers on the ends of the new growth in late summer
- Rounded shrub with fragrant bluish leaves with silvery undersides
- Attractive to hummingbirds, butterflies, and beneficial insects
HEIGHT: 100-125 cm · SPREAD: 100-125 cm
Caryopteris x clandonensis Beekeeper™ ('Minigold') (USPPAF, CPBRAF)
BEEKEEPER™ BLUEBEARD
- Dense compact habit
- Blue flower clusters atop vibrant chartreuse foliage
- Foliage fades more green in summer
HEIGHT: 60-80 cm · SPREAD: 60-80 cm
Castanea dentata
AMERICAN CHESTNUT
- Oblong, toothed, dull green leaves
- Fall colour is shades of yellow
- Aromatic, creamy-yellow-white flowers clustered in slender catkins
HEIGHT: 15-22 m · SPREAD: 15-22 m
Catalpa bungei
UMBRELLA TREE
- Wide-spreading growth habit with dense branching,
- Leaves are green, broadly ovate with heart-shaped bases
- Flowerless and sterile
HEIGHT: 3-4 m · SPREAD: 3-4 m
Catalpa speciosa
NORTHERN CATALPA
- Irregular, open, rounded to narrow, oval crown
- Heart-shaped leaves are light green
- Foliage in the fall is pale yellow
HEIGHT: 16-17 m · SPREAD: 12-13 m
Catananche caerulea
CUPID'S DART
- Unique buds open to light blue cornflower-like flowers with dark centres
- Flowers appear on tall, thin stems
- Foliage is made up of linear, gray-green, grass-like leaves
HEIGHT: 30-60 cm · SPREAD: 30-45 cm
Caulophyllum thalictroides
BLUE COHOSH
- Insignificant yellowish-green flowers
- Flowers finish and leave behind berry-like seeds
- As the seeds age, they take on a blue colour
HEIGHT: 45-70 cm · SPREAD: 50-60 cm
Ceanothus americanus
NEW JERSEY TEA
- Clusters of tiny white fragrant flowers
- Medium to dark green leaves are gray and hairy on the undersides
- New twigs are yellow, providing winter interest
HEIGHT: 100-125 cm · SPREAD: 100-125 cm
Ceanothus impressus 'Victoria'
VICTORIA CALIFORNIA LILAC
- Clusters of tiny fragrant light blue flowers
- Semi-evergreen dark green leaves
- Oval-rounded shrub
HEIGHT: 125-150 cm · SPREAD: 200-250 cm
Cedrus atlantica 'Glauca Pendula'
WEEPING BLUE ATLAS CEDAR
- AKA Cedrus libani 'Glauca Pendula'
- Very decorative weeping form, often serpentine trained
- Long blue soft needles, loosely spaced on pendulous twigs
HEIGHT: 3-4 m · SPREAD: 4-5 m
Cedrus atlantica 'Glauca'
BLUE ATLAS CEDAR
- Loose pyramid when young, flat-topped when mature
- Needles range from greenish-blue to intense blue
- Long blunt soft needles are loosely spaced along twigs
HEIGHT: 10-12 m · SPREAD: 5-6 m
Cedrus libani ssp. stenocoma
TURKISH CEDAR
- Upright columnar crown with broad horizontal branching
- Short needles are green to blue-green
- Cones are narrower than other cedrus cultivars
HEIGHT: 12-18 m · SPREAD: 9-15 m
Celastrus scandens
AMERICAN BITTERSWEET
- Rapid growing woody vine
- Serrated yellowish-green leaves
- Flowers are greenish-white, followed by orange-yellow fruit
HEIGHT: 5-6 m · SPREAD: 2-3 m
Celtis occidentalis
COMMON HACKBERRY
- Upright, arching branches with a rounded, spreading crown
- Bark develops corky ridges, tan when young, turning gray at maturity
- Simple ovate leaves, with serrated margins, are light green in the summer
HEIGHT: 15-18 m · SPREAD: 14-16 m
Celtis occidentalis Prairie Sentinel® ('JFS-KSU1')
PRAIRIE SENTINEL® HACKBERRY
- Narrow, columnar form, with almost vertical upswept branches
- Medium green leaves in the summer turn bright yellow in the fall
- Bark develops corky ridges, tan when young, turning gray at maturity
HEIGHT: 12-14 m · SPREAD: 3-4 m
Centaurea dealbata
PERSIAN CORNFLOWER
- Unique rosy-pink flowers
- Clumps of deeply-lobed gray-green leaves
- Leaves have a silver underside
HEIGHT: 40-60 cm · SPREAD: 75-90 cm
Centaurea montana
BACHELOR'S BUTTON
- Other common names: Mountain Bluet
- Deep blue cornflowers up to 6 cm across, with reddish-blue centres and black-edged bracts
- Clump-forming perennial with gray-green strap-like leaves, up to 20 cm long
HEIGHT: 40-60 cm · SPREAD: 50-60 cm
Centranthus ruber
RED VALERIAN
- Fragrant carmine-rose star-shaped flower clusters
- Well-branched clumping perennial
- Grayish-green oval to lance-shaped leaves up to 10 cm long
HEIGHT: 60-80 cm · SPREAD: 50-70 cm
Centranthus ruber 'Albus'
WHITE VALERIAN
- Fragrant star-shaped white flower clusters
- Well-branched clumping perennial
- Oval to lance-shaped grayish-green leaves up to 10 cm long
HEIGHT: 60-80 cm · SPREAD: 50-60 cm
Cephalanthus occidentalis
BUTTONBUSH
- Spherical clusters of white florets
- Green nutlets turn brown in the fall and persist into the winter
- Glossy foliage emerges in late spring
HEIGHT: 175-200 cm · SPREAD: 175-200 cm