Darwin Perennials 2025 catalog - Star Roses

DARWIN PERENNIALS FINISHING GUIDE

LIGHT LEVELS IN FOOT- CANDLES

SERIES/ VARIETY

MEDIA PH

VERNALIZATION REQUIRED

PAGE CROP

TEMPERATURE DAYLENGTH

WATERING

FERTILIZATION

Milly Rock™ Series

5.8-6.2 Nights: 55 to

Long day facultative

No

2,500 to 4,500

Moderate

Use a balanced fertilizer at a rate of 150 to 175 ppm N. Use a balanced fertilizer at a rate of 125 to 150 ppm. Use a balanced fertilizer at a rate of 125 to 150 ppm. Use a balanced fertilizer at a rate of 125 to 150 ppm. Use a balanced fertilizer at a rate of 150 to 175 ppm N. Use a balanced fertilizer at a rate of 150 to 175 ppm N.

14

ACHILLEA Achillea millefolium ACHILLEA Achillea millefolium

65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 65°F (13 to 18°C) Days: 60 to 65°F (16 to 18°C) 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C) 64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C) 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)

New Vintage™ Series

5.8-6.2 Nights: 55 to

Long day facultative

No

5,000 to 8,000

Allow media to dry regularly

13

between watering.

'Little Adder'

5.8-6.2 Nights: 50 to

Long day facultative

No

3,000 to 5,000

Allow media to dry regularly

16

AGASTACHE Agastache rugosa

between watering.

Summerlong™ Series

5.8-6.2 Nights: 50 to

Long day facultative

No

3,000 to 5,000

Allow media to dry regularly

15

AGASTACHE Agastache mexicana ARTEMISIA Artemisia gmelinii ARTEMISIA Artemisia gmelinii CARYOPTERIS Caryopteris x clandonensis CARYOPTERIS Caryopteris x clandonensis CARYOPTERIS Caryopteris x clandonensis COREOPSIS Coreopsis hybrida

between watering.

SunFern™ Arcadia

5.8-6.2 Nights: 56 to

Day length neutral

No

5,000 to 8,000

Allow media to dry moderately

17

between watering.

SunFern™ Olympia

5.8-6.2 Nights: 56 to

Day length neutral

No

5,000 to 8,000

Allow media to dry moderately

17

between watering.

'Emerald Crest'

5.8-6.2 Nights: 55 to

Long day obligate

No

5,000 to 8,000

Allow media to dry regularly

Use a balanced fertilizer at a rate of 125 to 150 ppm.

18

between watering.

'Gold Crest'

5.8-6.2 Nights: 55 to

Long day obligate

No

5,000 to 8,000

Allow media to dry regularly

Use a balanced fertilizer at a rate of 125 to 150 ppm.

18

65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)

between watering.

Grand Bleu ®

5.8-6.2 Nights: 55 to

Long day obligate

No

5,000 to 8,000

Allow media to dry regularly

Use a balanced fertilizer at a rate of 125 to 150 ppm.

18

65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)

between watering.

UpTick™ Series 5.8-6.2 Nights: 55 to 65°F (13 to 17°C) Days: 60 to 80°F (15 to 27°C)

Day length neutral

No

5,000 to 8,000

Allow media to dry moderately

Use a balanced fertilizer at a rate of 125 to 150 ppm.

19

between watering.

Ocean Sunset™ Series

5.8-6.2 Nights: 56 to

Day length neutral

No

5,000 to 8,000

Low to moderate Use a balanced

20

DELOSPERMA Delosperma hybrida

64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C)

fertilizer at a rate of 150 to 175 ppm N.

3,000 to 5,000

Low to moderate Use a balanced

Pink Carpet, Pink PomPom, Pink Twinkle, Red Garnet, Ruby Glitter, Ruby Snow Rose Bouquet

5.8-6.2 45 to 60°F (7 to 16°C)

Day length neutral

Beneficial for an increased quantity of Spring blooms.

22-23 DIANTHUS

fertilizer at a rate of 125 to 150 ppm N.

Dianthus hybrida

3,000 to 5,000

Low to moderate Use a balanced

5.8-6.2 45 to 60°F (7 to 16°C)

Day length neutral

Beneficial for an increased quantity of Spring blooms. Beneficial for an increased quantity of Spring blooms. Beneficial for an increased quantity of Spring blooms.

22-23 DIANTHUS

fertilizer at a rate of 125 to 150 ppm N.

Dianthus hybrida

3,000 to 5,000

Low to moderate Use a balanced

Silver Strike

5.8-6.2 45 to 60°F (7 to 16°C)

Day length neutral

22-23 DIANTHUS

fertilizer at a rate of 125 to 150 ppm N.

Dianthus hybrida

3,000 to 5,000

Low to moderate Use a balanced

White Twinkle 5.8-6.2 45 to 60°F (7 to 16°C)

Day length neutral

22-23 DIANTHUS

fertilizer at a rate of 125 to 150 ppm N. Use a balanced fertilizer at a rate of 125 to 150 ppm.

Dianthus hybrida DIGITALIS Digitalis hybrida

Arctic Fox™ Series

5.8-6.2 Nights: 55 to

Long day facultative

No

3,000 to 5,000

Allow media to dry moderately

21

60°F (13 to 16°C) Days: 60 to 65°F (16 to 18°C)

between watering.

Double Scoop™ Series

5.8-6.2 Nights: 55 to

Long day obligate

No

3,500 to 5,000

Allow media to dry moderately

Use a balanced fertilizer at a rate of 125 to 150 ppm.

25

ECHINACEA Echinacea x hybrida

60°F (13 to 16°C) Days: 60 to 65°F (16 to 18°C)

between watering.

Sombrero Poco™ Series

5.8-6.2 60 to 68°F (16 to 20°C)

Long day obligate

No

5,000 to 8,000

Moderate

Use a balanced fertilizer at a rate of 150 to 175 ppm N. Use a balanced fertilizer at a rate of 150 to 175 ppm N.

28

ECHINACEA Echinacea x hybrida

Sombrero ® Series

5.8-6.2 60 to 68°F (16 to 20°C)

Long day obligate

No

5,000 to 8,000

Moderate

26-27 ECHINACEA

Echinacea x hybrida

Product information and culture charts at darwinperennials.com

76 | FINISHING GUIDE

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