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dahlianut

Progressive delayed blooming

20 years ago

I have been planting 200-300 tubers per year for the past 8 years. Initially, my tubers, planted in early May, would bloom in July and continue thru October. During the past 3 years my plants have progressivly delayed their growth and blooms until this year, 2006, when 1/3 died out, the other 2/3's delayed blooming until September and October. The surviving plants are very healthy and heavy with large blooms, but, so late in the season. What have I been doing wrong? I have been adding a heavy supply of

5-20-20 granules to my garden beds, when I rototill my flower beds before planting. Could this be the cause? Am I meddling too much? Help!

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