Darwin Perennials 2026 Catalog

DARWIN PERENNIALS FINISHING GUIDE

LIGHT LEVELS

SERIES/ VARIETY

MEDIA PH

VERNALIZATION REQUIRED

PAGE CROP

TEMPERATURE DAYLENGTH

WATERING FERTILIZATION

IN FOOT- CANDLES

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

Day length neutral

No

5,000 to 8,000

Allow media to dry moderately

'Super Star'

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

COREOPSIS Coreopsis hybrida

between watering.

37

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

5,000 to 8,000

Allow media to dry moderately

Crème Caramel 5.8-6.2 Days: 55 to 80°F (13 to 27°C)

Long day obligate

Beneficial to enhance bulking and plant size.

COREOPSIS Coreopsis verticillata

37

between watering.

Day length neutral

No

5,000 to 8,000

Low to moderate Use a balanced

Ocean Sunset™ Series

5.8-6.2 Nights: 56 to 64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C) 5.8-6.2 Nights: 55 to 60°F (13 to 16°C) Days: 60 to 70°F (16 to 21°C)

DELOSPERMA Delosperma hybrida

fertilizer at a rate of 150 to 175 ppm N.

38

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

Long day facultative

No

5,000 to 8,000

Allow media to dry moderately

'Red Lark'

DELPHINIUM Delphinium x hybrida

40

between watering.

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.

Mountain Frost™ Pink Carpet, Pink PomPom,

DIANTHUS Dianthus hybrida

fertilizer at a rate of 125 to 150 ppm N.

42-43

Pink Twinkle, Red Garnet, Ruby Glitter, Ruby Snow

3,000 to 5,000

Low to moderate Use a balanced

Mountain Frost™ 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. Beneficial for an increased quantity of Spring blooms. Beneficial for an increased quantity of Spring blooms.

DIANTHUS Dianthus hybrida DIANTHUS Dianthus hybrida DIANTHUS Dianthus hybrida DIGITALIS Digitalis hybrida

43

fertilizer at a rate of 125 to 150 ppm N.

3,000 to 5,000

Low to moderate Use a balanced

Mountain Frost™ Silver Strike

5.8-6.2 45 to 60°F (7 to 16°C)

Day length neutral

43

fertilizer at a rate of 125 to 150 ppm N.

3,000 to 5,000

Low to moderate Use a balanced

Mountain Frost™ White Twinkle

5.8-6.2 45 to 60°F (7 to 16°C)

Day length neutral

43

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

Long day facultative

No

3,000 to 5,000

Allow media to dry moderately

Arctic Fox™ Series

5.8-6.2 Nights: 55 to 60°F (13 to 16°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 55 to 60°F (13 to 16°C) Days: 60 to 65°F (16 to 18°C)

41

between watering.

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

Long day obligate

No

3,500 to 5,000

Allow media to dry moderately

Double Scoop™ Series

ECHINACEA Echinacea x hybrida

between watering.

48

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.

ECHINACEA Echinacea x hybrida ECHINACEA Echinacea x hybrida

45

Sombrero ® Series

5.8-6.2 60 to 68°F (16 to 20°C)

Long day obligate

No

5,000 to 8,000

Moderate

46-47

5.8-6.2 50 to 60°F (10 to 16°C)

Day length neutral

Yes

3,000 to 5,000

Low to moderate 150 to 175 ppm N.

'Bowles Me Away', Brightside™ 'Little Joe'

49-50 ERYSIMUM

Erysimum linifolium EUPATORIUM Eupatorium dubium

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

Long day obligate

No

5,000 to 8,000

Allow media to dry moderately between watering. Prefers moist soils. Allow media to dry moderately

5.8-6.2 Nights: 55 to 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 5.8-6.2 Nights: 55 to 60°F (13 to 16°C) Days: 60 to 65°F (16 to 18°C)

50

Use a balanced fertilizer at a rate of 150 to 175 ppm. Use a balanced fertilizer at a rate of 125 to 150 ppm. Maintain constant fertilization at 175 to 225 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.

Long day obligate

No

5,000 to 8,000

Euphoria™ Series

EUPATORIUM Eupatorium purpureum GAILLARDIA Gaillardia aristata

50

between watering.

No

3,000 to 5,000

Allow media to dry moderately

Guapa Series 5.8-6.2 Nights: 55 to 60°F (13 to 16°C) Days: 60 to 65°F (16 to 18°C)

52

between watering.

Day length neutral

No

5,000 to 9,000

Allow media to dry slightly

5.8-6.2 Nights: 56 to 61°F (13 to 16°C) Days: 71 to 76°F (21 to 24°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 55 to 60°F (13 to 16°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 55 to 60°F (13 to 16°C)

Ballerina™ Series, Belleza ® Series

GAURA Gaura lindheimeri

52

between watering.

Day length neutral

No

3,000 to 5,000

Allow media to dry regularly

'Little Janie'

GAURA Gaura lindheimeri

52

between watering.

Day length neutral

No

3,000 to 5,000

Allow media to dry regularly

'Whiskers Deep Rose'

GAURA Gaura lindheimeri

52

between watering.

Product information and culture charts at darwinperennials.com

150 | FINISHING GUIDE

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