How do Canna Lilies spread?

tlbean2004August 6, 2014

I have canna lillies that grow on the side of my house.
There was a 10 ft oak tree next to them that i cut down about 6 weeks ago. Now that the tree is gone, canna lillies are popping up all over the space.

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esh_ga

They multiply.

    Bookmark   August 6, 2014 at 12:50PM
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ken_adrian Adrian MI cold Z5

i see no relation to the oak removal ...

and i wonder if you dont have lily of the valley ... as canna do NOT spread over much distance... in a given season ... let alone 6 weeks ...

are you sure on the ID???

ken

    Bookmark   August 6, 2014 at 12:57PM
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hairmetal4ever(Z7 MD)

I'd post this in the bulb forum...

As far as your question...the rhizomes branch off in all directions. You can cut the rhizomes to be seperate plants.

    Bookmark   August 6, 2014 at 1:22PM
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Dave in NoVA • 7a • Northern VA

They also self seed if you let them flowers go to seed. But most commonly they spread by underground rhizomes.

It could be they are getting more sun, more moisture and less root competition after your having removed the oak.

Is this a problem or just an observation?

    Bookmark   August 7, 2014 at 10:58AM
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tlbean2004

dave_in_nova

It is just an observation.

Only 2 of the canna have flowers. The rest are just the tall pretty leaves.

    Bookmark   August 7, 2014 at 12:20PM
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ken_adrian Adrian MI cold Z5

canna are 4 to 6 feet tall ...

i dont understand how they start popping up ... weeks after a tree is cut down ...

ken

    Bookmark   August 7, 2014 at 12:20PM
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poaky1

Cannas are annuals here in zone 6, but cutting the tree down lets in FULL SUN. With the tree there it was either FULL SHADE or Partial shade. Cannas love FULL SUN. Also the already mentioned more available moisture once the tree is gone.

    Bookmark   August 8, 2014 at 11:42PM
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ken_adrian Adrian MI cold Z5

how much shade does a 10 foot tree give???

i am having fun speculating.. would love to see a pic... dont think .. in any way ... that i have any intent ... other than curiosity ... or wanting to solve the mystery ...

forgive me.. if you read anything contrary

ken

    Bookmark   August 9, 2014 at 7:22AM
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