I want to have some geraniums in my greenhouse this coming summer and from what I have read I know I must start them from seed about this time of year. Has anyone done this before, do you have any tips to share?

I have not from seed, I want too, so this is a great post;-) I do however keep me and cut them down and put in the basement and they come back again in spring;-)

I've never startd any Geraniums from seed, but I do have some started from cutting. They are doing quite well at the moment, but I will have to see what happens to them as time passes. I'm hoping they will be a decent size by the time spring arrives.

I just planted geranium seeds on the 20th in starter soil and they emerged already on the 23rd!

My geraniums are all up and growing well. Planted 20 seeds and all 20 are growing.
I started mine on the 14th and they too were up in 3 days.

I started a bunch from seed last year, it was pretty late in the year too...I think around April, and I was so proud of them because they were so easy to grow and I didn't spend a ton buying them. Trying to overwinter them in the basement!