Love them or hate them, canna lilies are
stunning, especially when in flower. If you are trying to achieve a tropical
feel in your landscape, the canna lily will give you the best of both worlds
with broad tropical looking foliage topped with brightly colored flowers.
Canna lilies seem to have a bad
reputation with words such as ‘messy’, ‘invasive’ and ‘bug magnets’ often the
reasons that customers are reluctant to add one to their landscape. While I
can’t argue with the bug magnet part of their reputation, I truly believe with a
little work canna lilies are worth the extra time and effort.
Canna lilies aren’t true lilies, in fact
their closest plant relations are the gingers (Zingiberaceae) and bananas (Musaceae).
Canna lilies are rhizomatous, will grow almost anywhere (okay, so maybe
invasive isn’t totally incorrect) and perform their best when regularly
divided.
While all canna lilies have a tropical
feel to them, there are so many variations in color that you might find it hard
to pick just one, especially when you consider canna lilies have leaf colors
ranging from green to red to variegated, and flowers ranging from pastel pinks
and yellows to fluorescent reds and oranges. If the varieties that regularly
hit 6’ are a little more than you can handle then there are verities that top
out at a more respectable 4’.
BUGS
Let’s address the ‘bug magnet’ issue. Yes, grasshoppers, slugs, snails and beetles are going to view your canna lily as an early Christmas present when they first sprout in early Spring. The grasshoppers will eat from the outside of the leaf towards the center, the beetles will chew enormous holes in the middle of your leaves and the slugs and snails will turn the leaves to mush and leave pretty little silver trails all over your plants. There is no way to sugar coat it, at this point your canna lily is going to look like it just went through a hurricane (are you rushing out to buy one yet?).
There are a few options available to you
to help combat the bugs. While I recommend an organic solution to a garden
problem more often than not, in this instance I cry chemical solution loud and
clear. My favorite product is Fertilome Tree and Shrub Drench. The active
chemical in this product is ‘imidacloprid’ and it basically works
as a poison. Following the directions carefully you mix the product with water
and then you spread the mix around the bottom of the plant, just like you would
if you were watering. The roots of the plant absorb the mixture and it spreads
throughout the entire plant over the course of about two weeks. From that point
on anything that bites or sucks at the leaves will die. The label tells you
that it will last for about 6-12 months however I have found that using it
first thing in the Spring and then towards the end of the Summer gives my
plants the best protection.
Of course, if you are a staunch
supporter of organic solutions then I would recommend a preventative program
using a mixture of organic sprays. You will need a contact spray for the
grasshoppers and beetles, an oil based product such as Neem to suffocate any
sap suckers and beer traps for the slugs and snails (note to self - post blog
about beer traps). Using organics won’t stop the damage occurring but if you
keep to a regular schedule you can minimize it.
MESSY
Are canna lilies a messy plant? Yup,
they most certainly are. Canna lilies can flower impressively and extensively
and as the flowers fade they will drop to the ground and require you to spend
some time picking them all up. Also, even with the use of chemical and/or
organic sprays you will still have to remove damaged leaves as wind and sun can
burn the leaf edges. Bottom line, even though it sounds like a lot of work, I
still consider canna lilies as only requiring moderate maintenance.
INVASIVE
I prefer the phrase ‘easy to grow’
(there is your first clue). Anyone can grow a canna lily (there is your second
clue) and be successful at it. Canna lilies do spread quickly (last and final
clue) and unless you are trying to fill a large garden bed with nothing but
canna lilies you will need to divide them every other year.
WHERE TO PLANT
Canna lilies will grow beautifully in a
full sun position however they are susceptible to burn along the leaf edges, so
if possible pick a spot that gets a little shade in the afternoon. This will
help cut down on the time spent removing damaged leaves.
Canna lilies are one of those plants
that both love water and are drought resistant. You can plant canna lilies in a
boggy area and they will thrive. You can plant them in an area that drains
easily and as long as you throw a little water their way every so often, they
will thrive. Of course, I recommend regular watering to establish a strong root
system but let’s be honest, I have been known to go three or four weeks between
watering and they still look fabulous.
I am the fertilizer Queen. I may forget
to water, weed, divide and spray but I never forget to fertilize. Well
fertilized plants grow faster, look healthier, flower better, and winter over
easier. Canna lilies will do fine without fertilizer but add a little
fertilizer in the Spring when they first emerge and then fertilize again in
mid-Summer (if fertilizing in Summer use an organic to prevent fertilizer burn)
and you will notice the difference.
Hopefully I have inspired at least one
person to try a canna lily, because let’s be honest, only one of you needs to
grow one, the rest of us can just wait until next Spring and take one of your fifty
canna lily babies.