Most of us are familiar with the geranium, which is formally named “Pelargonium”. These geraniums are considered a hardy perennial, biennial or sometimes an annual, medicinal herb. The herb is often used for aromatic oil. (I have a hard time believing that, as I find their odor slightly offensive.) But, that is not my purpose here today.
Today, I want to talk about the geranium with which most of us are familiar. It is a very popular potted plant, usually associated with bright red, white or pink flowers.
In northern climes, they are considered to be an annual, although they can easily be overwintered, out of the ground. Here in Seattle, our climate is temperate enough that they survive quite nicely in the garden. At Horizon House we can see them flowering happily, not just in garden beds, but on our balconies.
Audrey was having a few issues with yellowing leaves on her geraniums. The plants seemed healthy otherwise, and she just removed the leaves. That’s exactly what she should do. Remember however, that this is a very drought tolerant plant. It likes to be a bit dry, so over-watering can overwhelm it pretty quickly. If the leaves on your geranium are yellowing, hold off on the water a bit.
Also, it could be that it is needing a little fertilizer. Remember in your home-owner days when you fed your grass fertilizer high in nitrogen??? (The first number on the fertilizer bag.) That fertilizer (nitrogen) is what kept the grass GREEN! So, look for a fertilizer that has more nitrogen than other nutrients. Maybe 10-5-5 or something like that. The first number should be the highest. Do not get too rambunctious with that fertilizer. Less is probably better! Here’s a link from Clemson University that tells you more than you’d probably ever want to know about fertilizers. But you might find it interesting! And it might just help your geranium!