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Perovskia Blue Steel
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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
(3 ppp)
Sow week
Plug ready week
Plug transplant week
Perovskia Bluesette is recommended for early Spring/Spring. Blue Steel will require high light and 68F ADT or higher for a Spring finish. More suitable for Southern growers.
Spring/Summer
Week color desired
Quart
(1 ppp)
Gallon
(3 ppp)
Sow week
Plug ready week
Plug transplant week
Late-Summer/Fall
Week color desired
Quart
(1 ppp)
Gallon
(3 ppp)
Sow week
Plug ready week
Plug transplant week
Notes/Pitfall Management
Seedlings may be susceptible to damping off. Treat as necessary. Pinch at transplant is beneficial. Use B9/Cycocel as necessary. Grow 'on the dry side'.
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