Last year had great success with sowing rosemary. I used a cactus soil mix and started them under lights in early Feb. As soon as I receive my seed order, I will seed some this year.

Joanna;
How big did your plants get? I know rosemary is a notoriously slow starter, and we always struggle to grow it from seed here. Even starting under lights, it seems as if they stay small forever. Do you grow any special variety?

Linda

It was very bushy and about 1-1/2 feet tall. It's after the peppers in the picture. The seeds were from a seed swap and they were about 3 years old. Almost all of them germinated. I did keep it in the GH most of the summer and cut off pieces to use in cooking, so it was trimmed a lot.. The package did not have any variety listed, was just called Rosemary

So how long did it take for the plant to grow to that size? Even starting from seed in early February, we've not been able to grow plants large enough to sell at our Master Gardener's plant sale in May. I've tried starting some every which way from cuttings (in potting mix, in water, with rooting hormone, without rooting hormone) and can't get a single one to root. Either you have the magic touch, or we are just not working under the right conditions. Your green house is beautiful! GH envy going on here

That picture in the previous post was taken July 26th. I seeded them January 26
Here's a pic on Feb 28

Here's Mar 20 on the shelf to the right

Here's April 20 bottom shelf

Wow--that is some significant growth in 6 months. Perhaps I need to try seeding in November for our May plant sale (everyone asks for rosemary, which we never have

Saw you photo that came up while I was posting. We definitely need to start earlier. Thank you so much for sharing this info!

Last year was the 1st time I grew it from seed and it grew slow. I guess is you want them really big for May, 6 months is what it will take.

Your greenhouse is beautiful. How many plants do you start from seed each year? Is it heated? (Sorry for off-topic here).

Lots, never really counted. I do heat it with propane 5000/9000btu heater and a 3000 btu electric heater with fan. This year I'm going to put a fan up high to circulate the heat. I will start a another forum in this cubit on greenhouses. I start a lot stuff in there that is a low temp germinater.

Wow--amazing. Unfortunately, we are not allowed to have any yard structures (greenhouses, sheds, etc) where we live. I have 2 shelving units in my basement for seed starting. Trying winter sowing for the first time this year. I'll look for your new cubit--there is always more to learn. Thank you.

Linda

guess I should start my seeds huh??

thought they were slow from the cold wet summer last year.. guess they are that slow

I have a large bush rosemary...every year I have to cut it back!

Having rosemary as a perennial plant must be awesome, Linda. How big is your plant?

It's about 5 foot tall. Would be more if I didn't prune it back every year. When I planted it, I didn't know it would get that big.