hardy shrub roses for the landscape...roses that have been developed to fill a desire for color,...

5/22/2020

1

OHIO STATE UNIVERSITY EXTENSION

TM

Hardy Shrub Roses for the Landscape

Rachel HovermanOSU Van Wert County Extension

OHIO STATE UNIVERSITY EXTENSION

TM

What is a Hardy Shrub Rose?

1

2

5/22/2020

2

OHIO STATE UNIVERSITY EXTENSION

TMTM

General Definition:

Roses that have been developed to fill a desire for color, form and fragrance, but are also lower maintenance, easier to care for and can adapt to

a variety of conditions.

OHIO STATE UNIVERSITY EXTENSION

Qualities of Hardy Shrub Roses:

• Cold and Heat Tolerant

• Disease Resistant*

• Drought Resistant*

• Fuller Habit

• Repeat Blooming

• Grown on their own roots

• Heavily bred

3

4

5/22/2020

3

OHIO STATE UNIVERSITY EXTENSION

TM

Qualities of Hardy Shrub Roses:

• Shrub Roses take the best of the hardiest rose species and combine those traits with modern repeat bloomers.

OHIO STATE UNIVERSITY EXTENSIONOHIO STATE UNIVERSITY EXTENSION

TM

Wild Claims!

• The easiest and longest blooming roses ever!!!!!

• More beautiful than any other type of rose!!!!!

• Virtually maintenance free!!!!!

5

6

5/22/2020

4

OHIO STATE UNIVERSITY EXTENSION

Knock Out Series

OHIO STATE UNIVERSITY EXTENSION

Knock Out Series

Pink Blushing

Sunny

7

8

5/22/2020

5

OHIO STATE UNIVERSITY EXTENSION

OSO Easy Series

Mango SalsaPaprika

OHIO STATE UNIVERSITY EXTENSION

OSO Easy Series

Lemon Zest Cherry Pie

9

10

5/22/2020

6

OHIO STATE UNIVERSITY EXTENSION

OSO Easy Series

Mango Salsa

OHIO STATE UNIVERSITY EXTENSION

TM

White Meidiland

Meidiland Series

11

12

5/22/2020

7

OHIO STATE UNIVERSITY EXTENSION

Fire Meidiland

Meidiland Series

OHIO STATE UNIVERSITY EXTENSION

Meidiland Series

Magic Ruby

13

14

5/22/2020

8

OHIO STATE UNIVERSITY EXTENSION

Carefree Series

Carefree Celebration Carefree Sunshine

OHIO STATE UNIVERSITY EXTENSION

Flower Carpet Series

Amber Pink Supreme

15

16

5/22/2020

9

OHIO STATE UNIVERSITY EXTENSION

Rosa ‘Nearly Wild’

OHIO STATE UNIVERSITY EXTENSION

Home Run Rose

17

18

5/22/2020

10

OHIO STATE UNIVERSITY EXTENSION

TM

Lady Elsie May Rose

OHIO STATE UNIVERSITY EXTENSION

Pest and Disease Issues of Shrub Roses

19

20

5/22/2020

11

OHIO STATE UNIVERSITY EXTENSIONOHIO STATE UNIVERSITY EXTENSION

TM

Powdery Mildew

OHIO STATE UNIVERSITY EXTENSIONOHIO STATE UNIVERSITY EXTENSION

TM

Black Spot

21

22

5/22/2020

12

OHIO STATE UNIVERSITY EXTENSIONOHIO STATE UNIVERSITY EXTENSION

TM

Rose Rosette

OHIO STATE UNIVERSITY EXTENSION

Pest Issues

Aphids

23

24

5/22/2020

13

OHIO STATE UNIVERSITY EXTENSION

Pest Issues

Scale

OHIO STATE UNIVERSITY EXTENSION

TM

Pest Issues

Japanese Beetle

25

26

5/22/2020

14

OHIO STATE UNIVERSITY EXTENSION

Cures and TreatmentsMost Insects: Permethrin Black Spot and Powdery Mildew:

Copper Fungicides

Scale: Dormant Spray

OHIO STATE UNIVERSITY EXTENSION

Pruning Hardy Shrub Roses

• Prune two times per year:

1.Early Spring Prune when leaf buds are just starting to emerge.

27

28

5/22/2020

15

OHIO STATE UNIVERSITY EXTENSION

TM

Pruning for established Landscape Roses

1. Cut back all stems to about two feet to get started.

OHIO STATE UNIVERSITY EXTENSION

Pruning for established Landscape Roses

2. Identify broken, diseases or rubbing and crossing stems and remove.

3. Remove the largest and woodiest stems.

4. Cut back the remaining stems to 12 inches.

29

30

5/22/2020

16

OHIO STATE UNIVERSITY EXTENSION

Pruning Hardy Shrub Roses

Early Spring Pruning

OHIO STATE UNIVERSITY EXTENSION

31

32

5/22/2020

17

OHIO STATE UNIVERSITY EXTENSION

Pruning Hardy Shrub Roses

• Prune two times per year:

2. Mid SummerPrune after the first push of blooms is finished. Mid summer pruning isfor shaping and deadheading.

OHIO STATE UNIVERSITY EXTENSION

TMTM

33

34