Darwin 2026 Perennials Catalog - Star Roses

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. Use a balanced fertilizer at a rate of 150 to 200 ppm N. Use a balanced fertilizer at a rate of 150 to 200 ppm N. Use a balanced fertilizer at a rate of 150 to 200 ppm N. Use a balanced fertilizer at a rate of 150 to 175 ppm N. Use a balanced fertilizer at a rate of 100 to 125 ppm. Use a balanced fertilizer at a rate of 150 to 175 ppm. 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 150 to 200 ppm. Use a balanced fertilizer at a rate of 150 to 200 ppm. Use a balanced fertilizer at a rate of 175 to 200 ppm N. Use a balanced fertilizer at a rate of 125 to 150 ppm. Use a balanced fertilizer at a rate of 100 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 125 to 150 ppm. Use a balanced fertilizer at a rate of 125 to 150 ppm. Use a balanced Pansy/Viola fertilizer at a rate of 125 to 150 ppm.

Long day obligate

No

5,000 to 8,000

Allow media to dry slightly

Little Lace

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

PEROVSKIA Perovskia atriplicifolia

60

between watering. Moderate

Candy Cloud™ Series

5.8-6.2 60 to 75°F (16 to 24°C)

Yes

5,000 to 8,000

62 PHLOX

Phlox hybrida PHLOX Phlox hybrida

Spring Splash™ Series

5.8-6.2 60 to 75°F (16 to 24°C)

Yes

5,000 to 8,000

Moderate

63

Ka-Pow ® Series 5.8-6.2 60 to 75°F (16 to 24°C)

Long day obligate

No

5,000 to 8,000

Moderate

PHLOX Phlox paniculata

65

Long day obligate

No

5,000 to 8,000

Moderate

Super Ka-Pow™ 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: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 6.0-6.4 Nights: 60 to 65°F (16 to 17°C) Days: 65 to 80°F (17 to 27°C) 5.8-6.2 Nights: 55 to 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C) 5.8-6.2 Nights: 45 to 70°F (7 to 21°C) Days: 55 to 80°F (13 to 27°C) 5.8-6.2 Nights: 45 to 55°F (7 to 13°C) Days: 55 to 65°F (13 to 18°C) 5.8-6.2 Nights: 45 to 55°F (7 to 13°C) Days: 55 to 65°F (13 to 18°C)

PHLOX Phlox paniculata

66

Day length neutral

Yes

1,500 to 2,500

Allow media to dry slightly

'Golden Feathers'

POLEMONIUM Polemonium pulcherrimum RUDBECKIA Rudbeckia hybrida

69

between watering.

Long day obligate

No

5,000 to 9,000

Moderate; avoid wilting.

Suntacular

68

Day length neutral

No

3,000 to 5,000

Allow media to dry moderately

Mirage™ Series

SALVIA Salvia greggii

74-75

between watering.

Day length neutral

No

5,000 to 8,000

Allow media to dry moderately

'Radio Red'

SALVIA Salvia greggii

76

between watering.

5,000 to 8,000

Allow media to dry moderately

Day length neutral

Beneficial; aids in bulking. Not required for flowering. Beneficial; aids in bulking. Not required for flowering. Beneficial; aids in bulking. Not required for flowering.

'Blue by You'

SALVIA Salvia hybrida

73

between watering.

5,000 to 8,000

Allow media to dry moderately

Day length neutral

Lyrical™ Series

SALVIA Salvia nemorosa

72

between watering. Moderate

5,000 to 8,000

Marvel Series

5.8-6.2 55 to 65°F (13 to 18°C)

Day length neutral

SALVIA Salvia nemorosa

71

No

5,000 to 8,000

Allow media to dry regularly

Shamrock

5.8-6.2 Nights: 55 to 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C) 5.8-6.2 Nights: 55 to 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C)

SEDUM Sedum cauticola

78

between watering.

Long day obligate

No

5,000 to 8,000

Allow media to dry slightly

'Yellow Diamonds'

SEDUM Sedum middendorffianum

between watering.

77

Long day obligate

No

5,000 to 8,000

Allow media to dry regularly

Prima Angelina 5.8-6.2 Nights: 55 to 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C)

SEDUM Sedum rupestre

78

between watering.

Long day obligate

No

5,000 to 8,000

Allow media to dry regularly

What a Doozie

5.8-6.2 Nights: 55 to 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C)

SEDUM Sedum spurium

77

between watering.

No

5,000 to 8,000

Allow media to dry moderately

Little Lamb 5.8-6.2 Nights: 56 to 64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C)

STACHYS Stachys byzantina

79

between watering.

Long day facultative

No

5,000 to 8,000

Allow media to dry slightly

Skyward™ Series

5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 70°F (16 to 21°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 70°F (16 to 20°C) 5.5-5.8 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C)

VERONICA Veronica hybrid

80

between watering.

Long day facultative

No

5,000 to 8,000

Allow media to dry slightly

Moody Blues ® Series

VERONICA Veronica hybrida

81

between watering.

Day length neutral

No

5,000 to 8,000

Allow media to dry slightly

Halo Series

VIOLA Viola cornuta

82

between watering.

Product information and culture charts at darwinperennials.com

90 | FINISHING GUIDE

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