We are in Morningside. The plant is many years old. It is near a basil bush and a letsia which I have removed. Is it possibly rot in the roots? Any way of reviving it? If so, what do I do?
Overwatering is usually a quick death of a Rosemary plant.
Since your plant is very old and established, you may want to try a prune and see if the roots can recover.
Here is a link with more information.
https://www.gardeningknowhow.com/edible/herbs/rosemary/growing-rosemary-plants-rosemary-plant-care.htm
https://www.gardeningknowhow.com/edible/herbs/rosemary/rejuvenation-of-rosemary.htm
Very high humidity and wet conditions in NJ. Rosemary has brown/yellow leaves on it and some of the sage leaves are turning yellow and not growing big sage leaves. Plants are not crowded and are outdoors in 4" high containers. I have a greenhouse but it is too hot in there and holds the humidity. I have compost. Should I use that? Appreciate any help you may be able to give me.
It sounds as if the soil is too wet, which would be the cause of the yellowing. If possible, allow the pots to dry out some before adding any more water (or getting more rain).
My plant is Neighbor says it is lavender with no flowers. Bush is about 16 inches high with about 15-20 vertical limbs. The "leaves" feel oily to the touch and have a very pungent odor. Rosemary or lavender? What do I have?
Both plants have a similar appearance, growing pattern and both plant would have a oily pungent smell and feel.
Here are links with information about both plants.
You can send us an image if you still can not identify the plant.
Can you tell me when I can transplant my rosemary seedlings to their final resting place? Only two leaves per sprout currently.
These articles may help: https://www.gardeningknowhow.com/garden-how-to/seeds/when-to-transplant-a-seedling-plant-into-the-garden.htm
https://www.gardeningknowhow.com/edible/herbs/rosemary/growing-rosemary-plants-rosemary-plant-care.htm
My rosemary was potted and I overwatered a while back. Now it's in the ground, from 4-5 months, and is doing really well.. but the old leaves are still curled. Any ideas why?
Once the leaves curl downward from the stress of overwatering, they will not return to a normal shape.
The new growth looks healthy.
Here is a link to refresh you on the care requirements.
https://www.gardeningknowhow.com/edible/herbs/rosemary/watering-rosemary.htm
I have a 40 year old Rosemary, which is about a foot high. It hasn't been doing very well, and it's dry and woody. It's the end of winter here. Should I cut it right back and hope for the best? Does it need fertilising? Thanks Melanie
I would do a soil test to determine if the plant needs any help or fertilizer.
They do prefer a soil with a ph of 6.o to 7.0
Here are some pruning articles that should help shape of your plant.
https://www.gardeningknowhow.com/edible/herbs/rosemary/pruning-rosemary.htm
https://www.gardeningknowhow.com/edible/herbs/rosemary/rejuvenation-of-rosemary.htm
How to get rid of tiny white balls (looks like minature cotton balls) on my rosemary bushes. When cut open, there is a tiny bug!
It sounds like you have either mealybugs or possibly scales, which are closely related to mealybugs. These insects form a cottony mass on the lower sides of branches. Both are usually controlled with horticultural oil sprays. Neem oil is also effective. Here is more information: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
https://www.gardeningknowhow.com/plant-problems/pests/scale-bug-how-to-control-plant-scale.htm