Kieft Seed Scheduling Tool

Delphinium Blue Donna

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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.

Early Spring

Week color desired

Quart
(1 ppp)

Gallon
(1 ppp)

Sow week

Plug transplant week

Spring/Summer

Week color desired

Quart
(1 ppp)

Gallon
(1 ppp)

Sow week

Plug transplant week

Notes/Pitfall Management
A light Sumagic spray when the flower spike is 4"-6" tall can reduce overall container height.

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