DARWIN PERENNIALS FINISHING GUIDE
LIGHT LEVELS
SERIES/ VARIETY
MEDIA PH
VERNALIZATION REQUIRED
PAGE CROP
TEMPERATURE DAYLENGTH
WATERING FERTILIZATION
IN FOOT- CANDLES
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 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. 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 100 to 125 ppm. Use a balanced fertilizer at a rate of 100 to 125 ppm. Use a balanced fertilizer at a rate of 100 to 125 ppm. Use a balanced fertilizer at a rate of 100 to 125 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 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.
Milly Rock™ Series
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 65°F (13 to 18°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 55 to 65°F (13 to 18°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 55°F (13°C) Days: 68°F (20°C) 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: 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) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) 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 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 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 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 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 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C)
ACHILLEA Achillea millefolium
20
Long day facultative
No
5,000 to 8,000
Allow media to dry regularly
New Vintage™ Series
ACHILLEA Achillea millefolium
18
between watering.
Long day facultative
No
3,000 to 5,000
Allow media to dry regularly
Summerlong™ Series
AGASTACHE Agastache mexicana
22-23
between watering.
Long day facultative
No
3,000 to 5,000
Allow media to dry regularly
'Little Adder'
AGASTACHE Agastache rugosa
23
between watering.
Day length neutral
Yes
5,000 to 8,000
Allow media to dry slightly
'Golden Spring'
ALYSSUM Alyssum wulfenianum
26
between watering. Moderate
Dreameria ® Series
Day length neutral
No
3,000 to 5,000
ARMERIA Armeria pseudarmeria
27
Day length neutral
No
5,000 to 8,000
Allow media to dry moderately
SunFern™ Arcadia
ARTEMISIA Artemisia gmelinii
26
between watering.
Day length neutral
No
5,000 to 8,000
Allow media to dry moderately
SunFern™ Olympia
ARTEMISIA Artemisia gmelinii
26
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
Yes, required for flowering, however, plants sell as foliage. Yes, required for flowering, however, plants sell as foliage. Yes, required for flowering; however, plants sell as foliage. Yes, required for flowering, however, plants sell as foliage. Yes, required for flowering, however, plants sell as foliage.
Frost King
BRUNNERA Brunnera macrophylla
29
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
Frost Magic
BRUNNERA Brunnera macrophylla
29
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
'Frostbite'
BRUNNERA Brunnera macrophylla
29
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
Frostline
BRUNNERA Brunnera macrophylla
29
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
Permafrost
BRUNNERA Brunnera macrophylla
29
between watering. Moderate
Long day facultative
No
5,000 to 8,000
Chrysalis™ Series
BUDDLEIA Buddleia hybrid
30
Long day obligate
No
5,000 to 8,000
Allow media to dry regularly
'Emerald Crest'
CARYOPTERIS Caryopteris x clandonensis CARYOPTERIS Caryopteris x clandonensis CARYOPTERIS Caryopteris x clandonensis CENTAUREA Centaurea ragusina
33
between watering.
Long day obligate
No
5,000 to 8,000
Allow media to dry regularly
'Gold Crest'
33
between watering.
Long day obligate
No
5,000 to 8,000
Allow media to dry regularly
Grand Bleu ®
33
between watering.
No
5,000 to 8,000
Allow media to dry moderately
Silver Swirl
34
between watering.
Day length neutral
No
5,000 to 8,000
Allow media to dry moderately
'Golden Stardust'
COREOPSIS Coreopsis hybrida
between watering.
37
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
5.8-6.2 Nights: 55 to 65°F (13 to 17°C) Days: 60 to 80°F (15 to 27°C)
Sunfetti Yellow Bicolor, UpTick™ Series
COREOPSIS Coreopsis hybrida
between watering.
35-36
Product information and culture charts at darwinperennials.com
148 | FINISHING GUIDE
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