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
Yes, beneficial for flowering
5,000 to 8,000
Allow media to dry slightly
Purple Glow 6.2-6.4 Nights: 55 to 65°F (13 to 17°C) Days: 60 to 80°F (15 to 27°C)
GERANIUM Geranium sanguineum
between watering.
53
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
Salud™ Series 5.8-6.2 Nights: 55 to 65°F (13 to 17°C) Days: 60 to 80°F (15 to 27°C)
HELENIUM Helenium autumnale
55
between watering.
'Autumn Gold'
5.8-6.2 55 to 70°F (13 to 21°C)
Short day obligate
No
5,000 to 8,000
Low to moderate Use a balanced fertilizer at a rate of 150 ppm N.
HELIANTHUS Helianthus salicifolius
55
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. Use a balanced fertilizer at a rate of 100 to 125 ppm. Use a balanced fertilizer at a rate of 125 to 150 ppm N. Use a balanced fertilizer at a rate of 125 to 150 ppm.
Summer Eclipse 5.8-6.2 Nights: 56 to 64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C)
HELIOPSIS Heliopsis helianthoides
55
Long day obligate
Beneficial; aids in bulking.
5,000 to 8,000
Allow media to dry slightly
'Sunstruck'
5.8-6.2 Nights: 55 to 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)
HELIOPSIS Heliopsis helianthoides
55
between watering.
Day length neutral
No
1,500 to 2,500
Allow media to dry slightly
Carnival Series 5.8-6.2 Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C) Big Top Series 5.8-6.2 Nights: 55 to 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)
HEUCHERA Heuchera x hybrida
61
between watering. Moderate
Day length neutral
No
1,500 to 2,500
HEUCHERA Heuchera x villosa
62
3,000 to 5,000
Allow media to dry regularly
Day length neutral
Cuttings supplied from Darwin Colombia receive enough cold to induce into flower, so growers will not need to vernalize.
'Summer Snowdrift'
5.8-6.2 Nights: 45 to 55°F (7 to 13°C) Days: 55 to 65°F (13 to 18°C)
IBERIS Iberis hybrid
between watering.
63
'Snowsation'
5.8-6.2 45 to 60°F (7 to 16°C)
Day length neutral
Yes
3,000 to 5,000
Low to moderate Use a balanced
IBERIS Iberis sempervirens KNIPHOFIA Kniphofia uvaria
64
fertilizer at a rate of 150 to 175 ppm N. Use a balanced fertilizer at a rate of 150 to 175 ppm
Glowstick
5.8-6.2 68 to 72°F (20 to 22°C)
Long day obligate
No
5,000 to 8,000
Allow media to dry slightly between watering. Overwatering will result in slow bulk. Allow media to dry slightly
66
N. Generally a heavier feeder.
Use a balanced fertilizer at a rate of 125 to 150 ppm.
Long day facultative
No
5,000 to 8,000
'Annet'
5.8-6.2 Nights: 55 to 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C) 5.9-6.2 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: 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)
LAVANDULA Lavandula angustifolia
between watering.
68
Use a balanced fertilizer at a rate of 125 to 150 ppm.
Long day facultative
No
5,000 to 8,000
Allow media to dry slightly
‘SuperBlue’
LAVANDULA Lavandula angustifolia
between watering.
68
Use a balanced fertilizer at a rate of 100 to 125 ppm.
5,000 to 8,000
Allow media to dry slightly
Beneficial for earlier flowering and more blooms.
Lavender Frost™ Series
LAVANDULA Lavandula pedunculata
between watering.
72
Use a balanced fertilizer at a rate of 100 to 125 ppm.
5,000 to 8,000
Allow media to dry slightly
Day length neutral
Beneficial for earlier flowering and more blooms.
Anouk Series, Luxurious
LAVANDULA Lavandula stoechas
between watering.
70
Use a balanced fertilizer at a rate of 100 to 125 ppm.
Day length neutral
No
5,000 to 8,000
Allow media to dry slightly
Primavera
LAVANDULA Lavandula stoechas
between watering.
71
Make My Daisy™ Series
5.8-6.2 Nights: 55°F (13°C) Days: 68°F (20°C)
Long day facultative
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. Use a balanced fertilizer at a rate of 150 to 175 ppm N.
LEUCANTHEMUM Leucanthemum superbum LEUCANTHEMUM Leucanthemum x superbum
73
'Whitecap'
5.8-6.2 Nights: 55°F (13°C) Days: 68°F (20°C)
Long day facultative
No
5,000 to 8,000
Moderate
74
Day length neutral
No
1,500 to 2,500
Moderate
'Night Light'
5.8-6.2 Nights: 55 to 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)
LYSIMACHIA Lysimachia alfredii
77
Product information and culture charts at darwinperennials.com
152 | FINISHING GUIDE
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