Schedule Crop - Delphinium Diamonds Blue

Delphinium Diamonds Blue

Data is gathered from our Elburn, Ill., trials (Zone 5a) for a North American audience. Warm-climate growers: expect 1-2 weeks earlier finishing. Cool-climate growers: expect 1 week slower. Dates based on standard 288 plug size.

Notes/Pitfall Management
B9 tones nicely if needed. Sumagic can be a bit strong.

Week color desired

Sow week

Plug transplant week

Early Spring

Quart
(1 ppp)

Gallon
(3 ppp)

Spring/Summer

Quart
(1 ppp)

Gallon
(3 ppp)

Late-Summer/Fall

Quart
(1 ppp)

Gallon
(3 ppp)

Delphinium Diamonds Blue

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Germination
Seed Form:	RAW
PlugSize:	288
Seeds/Cell:	1
Plug Crop Weeks:	6-7
Days from 50% to maximum germination:	5-7
Cover Seed:	Yes

Plug Production
Stage 1
Moisture:	Level 4
Temperature:	65-70°F (18-21°C)
Light:	Optional

Stage 2
Moisture:	Level 3
Temperature:	65-68°F (18-20°C)
Light:	2,000-2,500 fc (21,500-26,900 Lux)
Fertilizer:	Less than 100 ppm N (Less than 0.7 EC)

Stage 3
Moisture:	Level 2
Temperature:	65-68°F (18-20°C)
Light:	2,000-2,500 fc (21,500-26,900 Lux)
Fertilizer:	100 to 175 ppm N (0.7 to 1.2 EC)

Stage 4
Moisture:	Level 2
Temperature:	60-65°F (16-18°C)
Light:	4,000-5,000 fc (43,100-53,800 Lux)
Fertilizer:	100 to 175 ppm N (0.7 to 1.2 EC)

Vernalization:	No
Propagation Key Tips:	For forcing info: See Perennials Forcing Guide. Avoid low light conditions.

Growing on to Finish
Growing on Temperature:	(day) 65-70°F (18-21°C) (night) 55-63°F (13-17°C)
Target Media pH/EC (1:2):	5.6-6.2 pH 1.5-2.0 mmhos/cm
Fertilizer:	225 to 300 ppm N (1.5 to 2.0 EC)
Daylength:	Facultative Long Day
Fertilizer Notation:	Starting 1 week after transplant, apply fertiliser at rate 4 (225 to 300 ppm N/1.5 to 2.0 mS/cm) once a week using a predominately nitrate-based fertiliser with low phosphorus and high potassium. Maintain the media EC at 1.5 to 2.0 mS/cm and pH at 5.8 to 6.2. For a constant fertiliser program, fertiliser at rate 3 (175 to 225 ppm N/1.2 to 1.5 mS/cm) can be applied, while maintaining the above recommended EC and pH ranges.
Finishing Key Tips:	Avoid planting plugs too deep. Maintain good fertilisation, especially at flower initiation. Monitor for Aphids, Botrytis, Powdery Mildew.