In your climate you need to heat the GH. Snip off the tips of the branches of your plants just above a leaf node. Give them a rounded look if possible. The snipping can be rooted and you'll have even more plants. I think you need a real GH if you want to grow plants to sell.

Thanks for your response. What about the plants that have huge leaves. Some are very full plants. Should I just cut the leaf stem off to reveal more of the stem? When you speak of 'branches' do you mean the main stem of the plant that everything grows off of? If I snip when the plant is as well established as it is, will it delay flowering, or speed it up? I'm sorry to seem so ignorant. I'm just learning. All of the plants I have are about 8 inches tall and have a good amount of leaves but some are on long, spindly stems and I'm not sure if there is any benefit in snipping off the leaf stem instead of snipping off the entire top of the plant.

Help. I posted under a different subject and got valuable help....but I need to know if I should snip off the really big leaves on my geranium plants (they are huge disks)...the plants don't yet have flower buds. And what about the really long spindly ones? I don't want to end up with bare stalks in May! I did what greenhouser2 said on some of the plants but I don't know if I did it right, that's why I didn't do it on all of them. I'm getting stressed!

why don't you take one or two plants to nearest nursery and ask them. They do not have to know you are becoming their competition. There are few professional tricks how to get lots of bloom and how to sheer. Or you might want to pay someone to help you out first time so you know in the future if you want to make a business out of it.

It sounds like your Pelargoniums are growing along a single main stem and putting off leaves only along this main stem. (I am going to call it the "trunk" like a tree trunk, although this is not its technical term). What you want to do, is get them to branch out, just like a bush. This is done by pinching them back. A lot of flowers will grow up like this and not put off any off shoots (branches) unless they are pinched.

The leaf stems are not branches, they are only leaf stems that support one single leaf. If you cut off the leaf stem, most likely a new leaf and a new stem will grow from the base of the leaf stem, where it joins the "trunk" or main stem of the plant.

So, you can very safely pinch off or cut off the large leaves you don't like the look of on your plants. I am not sure if it will put them back from flowering, but I really don't think so. However, you will likely see in a few days that a new leaf is forming.

To get the plant to branch out though, you will need to cut off the growth node on the top of the plant. This is done by pinching the top off. The best place to do it so that it does not look odd, is right above the next set of leaves. Then you are not going to get an odd looking stump. The plant will then be forced to branch off to the sides if it wishes to continue growing, which it will. Because there are two growth nodes now (or meristems,) you will get two branches. Let them grow a bit more, and pinch back the branches again. After a few pinches, you will get a fairly bushy plant.

Even if they are not flowering, I would still suggest selling them. Undercut the local nursery prices, and you should find buyers!