Top Questions About Rosemary Plants

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Questions About Rosemary Plants

Asked by
Anonymous on
August 23, 2019

Q. How to get rid of ants under rosemary bush in the ground?

I have a large rosemary bush planted in the ground. The past few months I have noticed it is not as full and green as it has always been; some sections are turning brown and dying off. I noticed today there is an ant hill in the roots. Are the ants the cause of my rosemary plant’s declining?

Answered by
GKH_Susan on
August 23, 2019
Certified Expert
A.

Normally ants are after honeydew, which is secreted by pests such as aphids. Here is more information and how to control them, as well as diseases of rosemary.

https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-aphids-and-ants.htm

https://plantvillage.psu.edu/topics/rosemary/infos

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Asked by
Nickavens on
August 25, 2019
201308

Q. What is happening to my rosemary plant?

The leaves are turning brown and black please help.I am from India.

Answered by
BushDoctor on
August 26, 2019
Certified Expert
A.

I'm afraid that the clay soil the plant is in will not be very suitable for a container application. It has a tendency to stay, either, too moist or too dry. This can lead to fungal infections resembling what you are seeing on your plant.

You will need to change the soil to a suitable potting soil, or at least add compost to the clay. I do not recommend the latter, as using clay soils in containers is quite a chore.

Once you get it into a suitable soil, then you can begin treatment. This will be a fungicide.

These articles will help: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

https://www.gardeningknowhow.com/edible/herbs/rosemary/rosemary-grown-in-containers.htm

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Asked by
Carnall001 on
September 3, 2019
Roker, SR6 0PH

Q. Rosemary cuttings

I’ve potted some Rosemary cuttings from a well matured bush.
I followed the online directions but have two questions; (1) How often do the cuttings require watering? (2) What temperatures will they tolerate?

Answered by
BushDoctor on
September 4, 2019
Certified Expert
A.

They require water when they start to dry out down to an inch or so. There is no set time, since this depends on the conditions around them. Overwatering will lead to rot, and underwatering will lead to a failed cutting. In this case, though, underwatering is better. USUALLY, you will not need to water them at all until after you remove them from where they are rooting, as the humidity should remain high enough to prevent severe evaporation.

They will want to remain in temperatures that don't exceed the 80's during the day, and does not fall below 50 at night for proper rooting. A seedling heat mat can help if the temperatures cannot remain as warm as you need them.

This article will offer more information: https://www.gardeningknowhow.com/edible/herbs/rosemary/how-to-propagate-a-rosemary-plant.htm

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Asked by
Carnall001 on
September 5, 2019
Roker, SR6 0PH

Q. Rosemary cuttings 2

Hi
Sorry to trouble you again with this, but you were kind enough to answer the two questions I asked. However, there should have been a third; What is the ‘typical’ time before the cuttings root and I can site them permanently?

Answered by
BushDoctor on
September 5, 2019
Certified Expert
A.

Usually, this can take anywhere from 1 week to 3, depending on proper conditions around the cutting. Using rooting hormone will make this faster. Any nutrients in the soil will hinder the process, so a soiless mix like Peat moss or seedling mixes will be best.

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Asked by
beylom on
September 26, 2019
Waxhaw, NC zone: 7b/8

Q. I saw a beautiful weeping rosemary bush. How would I prune a rosemary plant to look like this?

My rosemary plants are new and still small (4″). I read that they are good for making a topiary. I know they have to grow before I begin.

Note: would you please post my question on site and send me a private email. Many thanks,

Answered by
BushDoctor on
September 26, 2019
Certified Expert
A.

You will have to have a weeping variety for it to look like this. You will not be able to prune an upright rosemary like this.

You can create a topiary with them, though. This article will help: https://www.gardeningknowhow.com/edible/herbs/rosemary/rosemary-topiary-tips.htm

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