PERENNIALS / FINISHING GUIDE
CLASS/SERIES
HARDINESS ZONE
RECOMMENDED PLUG SIZE
GROWING ON TEMPERATURE (DAYS/NIGHTS) (day) 59-70°F (15-21°C) (night) 50-64°F (10-18°C)
TARGET MEDIA PH/EC (1:2)
DAYLENGTH
GAURA Gaura lindheimeri Sparkle White
5-9
288
5.5-6.2 pH 1.5-2.0 mmhos/cm
Quantitative long day plant with critical daylength of 13 hours.
HEUCHERA Heuchera sanguinea Heucherette ™ Series
(day) 55-65°F (13-18°C) (night) 50-55°F (10-13°C)
128 72
6.0-6.8 pH 1.4-1.8 mmhos/cm
Day Neutral
HEUCHERA Heuchera x hybrida Melting Fire
(day) 60-68°F (16-20°C) (night) 58-60°F (14-16°C)
4-8
288 128
5.8-6.2 pH 1.2-1.4 mmhos/cm
Day Neutral
HEUCHERA Heuchera micrantha Palace Purple
(day) 65-68°F (18-20°C) (night) 60-65°F (16-18°C)
4-8
288 128
5.8-6.2 pH 1.2-1.4 mmhos/cm
Day Neutral
HIBISCUS Hibiscus moscheutos Luna ™ F 1 Series
(day) 70-85°F (21-29°C) (night) 65-70°F (18-21°C)
5-9
288 128
6.0-6.5 pH 1.5-2.0 mmhos/cm
Facultative Long Day Long day min. 12 hours; optimum 14 hours or longer.
IBERIS Iberis sempervirens Whiteout F 1
(day) 60-72°F (16-22°C) (night) 41-50°F (5-10°C)
3-8
288
5.5-6.2 pH 1.2-1.4 mmhos/cm
Day Neutral
LAVANDULA Lavandula angustifolia Avignon Early Blue
(day) 60-72°F (16-22°C) (night) 46-54°F (8-12°C)
6-8
288 128
5.8-6.5 pH 1.1-1.4 mmhos/cm
Day Neutral See Lavender Scheduling Tool at panamseed.com for finishing schedules per region.
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FINISHING GUIDE / Additional culture info online • panamseed.com/culture
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