Hello
It is likely that you are being too kind to your plants. What might help is that you reduce the amount of nitrogen you give your plants and increase the amount the amount of potassium. This is best done by using Tomato fertiliser. Do not overfeed your plants.

Thank you mel. That bloom builder stuff is 10-52-10. It should do the trick then, right? I'll have to go look at some tomato fertilizer, see what the numbers are.

I too have a very large leaf geranium and don't know what it is. The leaves must get 5" across and there is always a leaf turning yellow. Has never gotten a bud and I can tell you has never been fertilized with anything.

After two applications of bloom builder, each plant now has at least two buds! But, OMG, I thought japanese beetles didn't like geraniums. I've killed a dozen today and a dozen yesterday that I found on the geraniums! I guess they'll eat everything tho because I found one eating a marigold! And I have only two marigolds - tons of geraniums, bush and climbing morning glories, salvias, mums, alyssum, gloriosa daisy, zinnia. I have found them on the basil too. And I even found one on an oriental lily. I'm afraid they'll eat anything and everything. Think I'll start a thread somewhere for what they don't like.

Do you know the parents of your seeds? Some hybrids (pelargoniums) do not bloom well and all the fertilizer in the world won't make them do so.

They have bloomed very well since my last post. I'm a little unhappy with how huge they've gotten. Like shrubs. We wanted to save them, bare rooted in boxes. But these are so huge! Just today I've cut a few back. I hope they have time to heal before we take them in. I might try to root the cuttings and grow them under lights all winter. Anyone else ever try this?

I root 20 or so cuttings every fall/ winter and grow them into saleable plants under lights. By spring they ready to harden off, and if the timing is right, in bloom.