DARWIN PERENNIALS FINISHING GUIDE
LIGHT LEVELS IN FOOT- CANDLES
SERIES/ VARIETY
MEDIA PH
VERNALIZATION REQUIRED
WATERING FERTILIZATION
PAGE CROP
TEMPERATURE DAYLENGTH
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 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
20 ACHILLEA
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) 65°F (13 to 18°C) Days: 60 to 65°F (16 to 18°C)
Achillea millefolium
Long day facultative
No
5,000 to 8,000
Allow media to dry regularly
New Vintage™ Series
5.8-6.2 Nights: 55 to
ACHILLEA Achillea millefolium
18
between watering.
Long day facultative
No
3,000 to 5,000
Allow media to dry regularly
Summerlong™ Series
5.8-6.2 Nights: 50 to
22-23 AGASTACHE
Agastache mexicana
between watering.
Long day facultative
No
3,000 to 5,000
Allow media to dry regularly
'Little Adder'
5.8-6.2 Nights: 50 to
23 AGASTACHE
Agastache rugosa
between watering.
Day length neutral
Yes
5,000 to 8,000
Allow media to dry slightly
'Golden Spring'
5.8-6.2 Nights: 55 to
26 ALYSSUM
Alyssum wulfenianum
between watering. Moderate
Dreameria ® Series
5.8-6.2 Nights: 55°F (13°C) Days: 68°F (20°C)
Day length neutral
Beneficial
3,000 to 5,000
ARMERIA Armeria pseudarmeria
27
Day length neutral
No
5,000 to 8,000
Allow media to dry moderately
SunFern™ Olympia
5.8-6.2 Nights: 56 to
26 ARTEMISIA
64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°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) 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) 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) 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C) 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C)
Artemisia gmelinii
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
5.8-6.2 Nights: 50 to
29 BRUNNERA
Brunnera macrophylla
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
Frost Magic
5.8-6.2 Nights: 50 to
29 BRUNNERA
Brunnera macrophylla
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
'Frostbite'
5.8-6.2 Nights: 50 to
29 BRUNNERA
Brunnera macrophylla
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
Frostline
5.8-6.2 Nights: 50 to
29 BRUNNERA
Brunnera macrophylla
between watering.
1,500 to 2,500
Allow media to dry slightly
Day length neutral
Permafrost
5.8-6.2 Nights: 50 to
29 BRUNNERA
Brunnera macrophylla
between watering. Moderate
Long day facultative
No
5,000 to 8,000
Chrysalis™ Series
5.8-6.2 Nights: 56 to
30 BUDDLEIA
Buddleia hybrid
Long day obligate
No
5,000 to 8,000
Allow media to dry regularly
'Emerald Crest'
5.8-6.2 Nights: 55 to
33 CARYOPTERIS Caryopteris x clandonensis 33 CARYOPTERIS Caryopteris x clandonensis 33 CARYOPTERIS Caryopteris x clandonensis 34 CENTAUREA
between watering.
Long day obligate
No
5,000 to 8,000
Allow media to dry regularly
'Gold Crest'
5.8-6.2 Nights: 55 to
between watering.
Long day obligate
No
5,000 to 8,000
Allow media to dry regularly
Grand Bleu ®
5.8-6.2 Nights: 55 to
between watering.
No
5,000 to 8,000
Allow media to dry moderately
Silver Swirl
5.8-6.2 Nights: 56 to
Centaurea ragusina
between watering.
Day length neutral
No
5,000 to 8,000
Allow media to dry moderately
'Golden Stardust'
5.8-6.2 Nights: 55 to
COREOPSIS Coreopsis hybrida
37
between watering.
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
Sunfetti Series, UpTick™ Series
5.8-6.2 Nights: 55 to
35-36 COREOPSIS
65°F (13 to 17°C) Days: 60 to 80°F (15 to 27°C)
Coreopsis hybrida
between watering.
Product information and culture charts at darwinperennials.com
150 | FINISHING GUIDE
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