Native Plants
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Wednesday - June 10, 2015
From: Pflugerville, TX
Region: Southwest
Topic: Invasive Plants, Herbs/Forbs
Title: Is Canna glauca invasive?
Answered by: Anne Van Nest
QUESTION:
How aggressive is Canna glauca? I'm interested in planting one near a gutter downspout, but I'm afraid it will crowd out groundcovers (heartleaf skullcap and fall obedient plant) in the two locations I'm considering. Can it be controlled?ANSWER:
Canna glauca (water canna) is not overly invasive and can be controllled by keeping it in a pot and plunging it into the soil. The pot will keep the roots confined and which will restrict the growth and spread.
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