Crowded crowns
By:
Garden Gate staff
Help perennials bloom their best every year with this simple check.
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Keep it blooming
Not many blooms on your perennial or — even worse — none at all?
Some plants grow so quickly they become crowded in only a few years. When this happens, the plant won’t produce lots of flowers. If you’re disappointed with the way a perennial’s been blooming, take a look at its crown in spring and divide, if necessary. Click ahead to find out what happens to this Siberian iris when it gets too crowded and see a list of other plants that benefit from dividing.
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Crowded crowns
Does it have a dead center like the Siberian iris at left? That’s another sure sign it’s time to divide.
Here’s a list of plants that need dividing every 3 to 4 years to keep them healthy and blooming.
• Bearded iris Iris hybrids
• Helenium Helenium hybrids
• Maiden grass Miscanthus sinensis
• Siberian iris Iris sibirica
• Veronica Veronica spp. and hybrids
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