How to Keep Rosemary Alive During the Winter
I have a rosemary plant since 2 years and it was ovewintered once with success. This summer, it gave me some tiny flowers !
I'm living in Quebec city in zone 4 ! You can't imagine how it's very cold here for rosemary...
It will come back "in" home this week-end. Recently, I bought a humidifier and I'll keep it under grow light. I cross my fingers :-)
Now’s not the time to cut it back. Do a hard pruning in the winter when it’s not actively growing.
I'm in zone 6, Cincinnati. I have had a rosemary plant in the ground for 3 years now. It is in a river rock bed. In the winter I cut it back by a third and then stack stone around it, about 5" tall. Then I put leaf mulch in and around the rosemary. I've had very good success.
I have a rosemary plant that is about 20 years old. I live in zone 6 in Vernon British Columbia. I bring it in when the nights get to 0C 32F. I leave it by the basement sliding door with a south exposure. It blooms 2 or 3 times a year and has not been repotted for over 7 years. It reseeds itself on top of the compost that I add every year. It is outside now and just starting to bloom again. I plan in repotting it next spring by cutting some of the roots and pruning it.
I live in Prescott Valley, AZ. The winter can get pretty cold, and we get snow regularly. The previous homeowner made some raised garden beds out of steel livestock water troughs, and earlier this year, I planted a small Rosemary bush in one of them. It grew all summer, and is now a significant bush. Is there anything I can do to prevent this magnificent bush from dying in the freezes this winter?
Rosemary is hardy to 15-20 degrees. If it regularly gets colder than that in Prescott Valley, you need to bring your plant inside or take some cuttings and start hew plants. If temps that cold are rare, you can wrap the plant with burlap or plastic (leave the top open so the plant doesn't cook) and mulch the soil around the plant to keep the roots from freezing. Since it is in a metal tub, you could pile hay around the outside of the tub to insulate the roots. Sitting in wet cold soil could also kill the plant but it will be hard to prevent that in a container left outside over the winter unless you build some kind of structure over it.
I have had a potted rosemary plant for many years, bringing it out onto the porch in the summer, and back in to the south-facing floor-to-ceiling windows in the fall, through early spring. It is in a warm room with the sun shining on it in the winter, and is thriving!! It is in a pot over a foot in diameter at the top, and 11 inches tall. The plant itself is 2 feet tall, with many lush branches! Guess it doesn't need cool weather.
I live in SE Michigan and have had good success bringing my rosemary plant inside each winter. It sits by a glass, southern facing door where it gets plenty of sun and even a little chill. But, other than getting lanky, it will also develop a ‘fuzz’ on its leaves. I am careful to avoid over-watering and am wondering how to avoid this…?