Schedule Crop - Delphinium Red Lark

Delphinium Red Lark

Data is gathered from our West Grove, Pa., trials (Zone 6a). Southern growers: expect 1-2 weeks earlier finishing. Northern growers: 1 week slower. Consider summertime scheduling accurate. Dates based on a standard 72 liner size.

Week color desired

TC stick week

Liner transplant week

Spring/Summer

Gallon
(1 ppp)

Long day facultative. Will flower faster early in the season using long day lighting. Southern growers and high light regions can finish Red Lark in 12-14 weeks. 50 plug or larger liners will finish a little faster.

Late-Summer/Fall

Gallon
(1 ppp)

Delphinium Red Lark

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Propagation Guide
Media EC/pH:	5.8-6.2
Soil Temperature:	68-72°F (21-22°C)
Rooting Hormone:	None
Mist:	Low mist or tenting
Fertilization:	Balanced fertilizer 75-100 ppm
Pinching:	None
Transplanting:	42-49 days
Comments:	This is a tissue culture raised item. Please see our detailed tissue culture propagation guide at darwinperennials.com.

Finishing Guide
Media pH:	5.8-6.2
Temperature:	Nights: 55 to 60°F (13 to 16°C) Days: 60 to 70°F (16 to 21°C)
Light Level (fc):	5,000 to 8,000
Vernalization:	No
Daylength:	Long day facultative
Watering:	Allow media to dry moderately between watering.
Fertilization:	Use a balanced fertilizer at a rate of 150 to 175 ppm N.
Pinch After Transplant:	None
Plant Growth Regulators:	PGRs generally not needed
Pests and Fungal Diseases:	Watch for typical pests, such as thrips, white fly, spider mites and aphids.