PERENNIALS / FINISHING GUIDE
CLASS/SERIES
HARDINESS ZONE
RECOMMENDED PLUG SIZE
GROWING ON TEMPERATURE (DAYS/NIGHTS) (day) 65-72°F (18-22°C) (night) 57-60°F (14-16°C)
TARGET MEDIA PH/EC (1:2)
DAYLENGTH
LEUCANTHEMUM Leucanthemum x superbum Madonna F 1
3-9
288 72
5.5-6.2 pH 0.9-1.1 mmhos/cm
Obligate Long Day Plant needs a minimum of 14.5 hrs. daylength to initiate flowering. Responds very well to night interruption (4 hrs. between 10 p.m. and 2 a.m.) for Spring Forcing. Juvenility ends at 10 leaves.
LEUCANTHEMUM Leucanthemum x superbum White Lion F 1
(day) 65-72°F (18-22°C) (night) 57-60°F (14-16°C)
3-9
288 72
5.5-6.2 pH 0.9-1.1 mmhos/cm
Facultative Long Day Facultative Long Day Plant but very low sensitivity to daylength, with critical daylength at 10 hours. To finish in early Spring, plant development does require sufficient temperature (ADT 44-50°F), meaning a southern Winter climate, to grow and finish in that early Spring. Long Day Plants. Scarlet is a Facultative Long Day plant that flowers faster at 13 hours or longer. See Perennials Forcing Guide for more info on scheduling and plug size and treatments. Forcing for Summer and Autumn sales target Weeks 35 or later. Sow Week 15 to 17, using 288 trays. Grow plugs under 10-hour short-day conditions using black cloth until ready to transplant. Allow about 8 to 9 weeks during Summer production. After short-day treatment, transplant to final container and grow under natural long days. Outdoor production is recommended. Total crop time is approximately 19 to 20 weeks.
LOBELIA Lobelia x speciosa Starship ™ F 1 Series
(day) 65-70°F (18-21°C) (night) 60-65°F (16-18°C)
6-10
288 105
5.8-6.6 pH 1.1-1.3 mmhos/cm
MYOSOTIS Myosotis sylvatica Mon Amie Series PAPAVER Papaver nudicaule Champagne Bubbles F 1 Series PENSTEMON Penstemon heterophyllus Electric Blue
(day) 60-70°F (16-21°C) (night) 50-55°F (10-13°C)
6-8
288
5.6-5.8 pH 1.3-1.5 mmhos/cm
Day Neutral
(day) 50-55°F (10-13°C) (night) 40-45°F (4-7°C)
4-8
288
5.5-6.0 pH 1.2-1.4 mmhos/cm
Day Neutral
(day) 66-70°F (19-21°C) (night) 62-66°F (17-19°C)
6-8
288
5.8-6.5 pH 1.0-1.5 mmhos/cm
Day Neutral Needs high light intensity for complete, rapid and uniform flowering.
96
FINISHING GUIDE / Additional culture info online • panamseed.com/culture
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