Geraniums are one of my favourite summer annuals. They’re easy to grow, are drought resistant, come in a multitude of colours and over winter very well. They’re happy wherever I put them, either in full sun or part shade, plus they also like to grow in pots which is important here on the Prairies. We get hail storms every summer, so my husband and I regularly engage in “The Running of the Pots” ie When a storm threatens, we bring all our potted annuals under cover to avoid the damage from hail stones.
What we call geraniums were brought from South Africa to Europe by
Dutch traders in the early 18th century. Although originally
classified as geraniums due to their similarity to hardy wild geraniums growing
in Europe, they were eventually reclassified as Pelargonium due to differences
in the petal shape and number of stamens from the wild variety. Pelargonium
means stork’s bill, a reference to the long, sharply pointed shape of their
seedpod. True geraniums are a hardy flowering perennial also know as
“cranesbill”. I have a patch of cranesbill in my side garden and yes, I can
attest to the fact they’re very hardy! In the picture below you can see one of my overwintered geraniums. The flowering plant behind it is cranesbill.
The name stuck however, so when we say geranium, we actually mean pelargonium. There are two common varieties, Zonal Geraniums and Ivy Leaf Geraniums which are a trailing variety. I’ve grown both successfully although I’ve never been able to overwinter the ivy variety despite repeated attempts. Those are ivy geraniums in the wall pots in the picture below.
To overwinter, bring your geraniums inside before the first frost.
I must admit, however, that I’ve been caught flat footed a couple of times over
the years and my geraniums were hit by frost. It didn’t kill them as the roots
didn’t freeze but I made sure I had new growth before I let them go dormant.
They do best when given a dormant period through the winter months
so use less water and don’t fertilize. I water every two weeks so the roots don’t
dry out completely. By the end of the winter, they’re looking pretty sad but
that’s when I shape them and remove all the dead growth. I’ll start watering
them in April. After a few waterings, I’ll start to fertilize. Of course, I
harden them off before leaving them out for the summer. They can be repotted in
the spring to encourage new growth although I usually don’t bother. This is how they look when I bring them out in the spring:
Some interesting geranium facts:
Keep the plants out of reach from pets and young children as they
may cause indigestion and vomiting. They’re toxic to Japanese beetles so that’s
one pest you don’t have to worry about although in my experience, geraniums are
resistant to pretty much anything.
Apply crushed geranium leaves to stop the bleeding of minor cuts. In
some aromatic varieties, both the flowers and leaves are edible and fresh
leaves of all types can be used for flavouring jelly, iced drinks, pastries,
pound cake and salads. Dried leaves can be used in potpourri and sachets.
In the language of flowers, scarlet geranium means silliness. Ha,
I’ve had quite a few silly geraniums over the years!