Cultivar

Flower Color

Time of
Bloom

Height and Width
in approx. 4 yrs

Foliage

Winter

Foliage

Comments

Jan Dekker *

mauve

Aug-Sept

6" x 12" spreading

downy gray

neat looking plant

Jana *

double red

Aug-Sept

14” x 20”

medium green

Janet’s White *

white to lavender

July-Sept

vigorous 12” x 24”

medium green

Janice Chapman *

white

July-Sept

upright 12” x 24”

bright green

Japanese White *

white

Aug-Sept

upright 14” x 16”

green flecked with white

spring foliage quite white

mottle variegated green & cream

Jeanette *

white buds

Aug-Nov

bright green

Jette *

bright red buds

Aug-Nov

16” x 16”

bright green

J.H. Hamilton* +

double deep pink

July-Sept

dwarf compact 
4" x 10"

dark green

flower color has salmon overtones

Jimmy Dyce * +

double lilac pink

Sept-Nov

low 8” x 12”

dark green

bronze

John F. Letts *

lavender

Sept-Oct

prostrate 4” x 10”

gold

bronze to orange, red

grows in swirling mats

Johnson’s Variety

lavender

Oct-Jan

upright 12” x 24”

medium green

excellent plant for late flowers

Josefine *

white

Aug-Sept

compact erect 10” x 18”

bright green

Josi

double bright red

Aug-Sept

12” x 24”

dark green

Joy Vanstone* +

lavender

Aug-Sept

12” x 20”

straw colored

orange

handsome plant

Julia *

lavender

Aug-Sept

compact upright

12” x 20”

gold

orange with red tints

vigorous, good spring color

Juliane *

red buds

Aug-Dec

12” x 16”

medium green

Juno *

mauve

Jul-Sept

neat mound

12” x 16”

dark green

mossy foliage

Katja

pink to crimson buds

Sept-Dec

14-16” x 16”

dark green

Kerstin * +

mauve

Aug-Sept

upright 12" x 18"

downy deep 
lilac gray

yellow & red spring tips

from Sweden

hardy

Kinlochruel * +

double white

Aug-Oct

compact bush 
10" x 16"

bright green

bronze tips

spectacular in bloom the best double white

Kirby White

white

Aug-Sept

20" x 24"

medium green

spring tips yellow

Kirsty Anderson  *

reddish purple

Aug-Sept

upright 12” x 18”

pale golden

red stems

hardy for golden, blooms very well

Kit Hill *

white

Aug-Sept

neat & tidy 8” x 16”

bright dark grn

flowers well

Kuphaldtii *

lavender

Aug-Sept

prostrate 4" x 14"

dark green

reddish winter and spring

Kynance *

lilac pink

Aug-Oct

ground hugging plant  8” x 24”

dark green

similar to ‘Mullion’ and ‘Roma’

Lambstails *

lavender

Aug-Sept

yellow orange

tipped pink in winter

new growth curls downward

Larissa *

rich brick red buds

Aug-Nov

upright bushy

12” x 18”

dark green

sport on ‘Alexandra’

patented plant

Late Crimson Gold *

dark

crimson

Sept-Oct

erect 12” x 18”

orange

red

Lemon Gem *

white

Aug-Sept

compact 6” x 12”

golden yellow

Lemon Queen *

white

Aug-Sept

upright 12" x 18"

light yellow

Leonie *

bright red buds

Aug-Nov

upright 16-20” x 12-18”

medium green

Leslie Slinger *

lavender

Aug-Sept

8” x 14”

green

spring tips salmon crmsn

Lewis Lilac *

mauve

Aug-Sept

erect 12” x 20”

orange

needs good air flow

Lianne *

dark violet buds

Aug-Nov

16-20” x 12-18”

dark green

Liesl *

lavender

Aug-Sept

12-15” x 30”

green gray

named after Liesl Plomski

Lime Glade  *

white

Sept-Oct

upright 12” x 15”

lime green

almost white in spring

foliage color a nice contrast

Little Skookum *

mauve

Aug-Sept

6-8” x 20”

gray green

seedling found at Heaths & Heathers

Loch-na-Seil *

pale

lavender

Aug-Sept

prostrate 4” x 6”

gray green

slow growing

Loch Turret *

white

June-Aug

8” x 18”

bright green

First callluna in bloom

Long White *

white

Aug-Oct

spiky 15” x 18”

bright green

good cut flower

Lyle’s Late White *

white

Sept-Oct

vigorous upright

20” x 24”

dark green

needs good airflow, cut flower

Lyndon Proudley *

lavender

Aug-Oct

very compact

6” x 12”

medium green