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Is Rosemary Invasive? (Let’s Find Out)

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Last updated on September 26th, 2022 at 08:54 am

Invasive plants can be annoying, many plants in existence today have that special ability to replant or propagate themselves beyond their given space. More often than not, this invasion proves to be detrimental to the well-being of your crops.

Plants such as lemon balm, oregano, sage, thyme, and comfrey have the ability to regenerate themselves. Therefore, if you grow rosemary, you may wonder whether it exhibits this character too.

So, is rosemary invasive? The rosemary plant is not invasive, this is due to the fact it is grown in a controlled geographical location where it receives an adequate supply of sunlight, sufficient amounts of water and nutrients, regular pruning and maintenance, and of course, good pollinators. 

Are Rosemary Roots Invasive?

The invasiveness of a plant root basically depends on the variety of plants you’re dealing with. You could have a species of plant that is draining your crop’s nutrients and water, leading to stunted growth.

Well, rosemary roots are not invasive, especially if they are grown in a container where you can observe them properly. Nevertheless, the roots can become invasive if it’s left without proper care and attention for a couple of years.

This could turn out to be a huge problem for you; that is when its roots spread out and adversely affects the growth of other plants. Notwithstanding, you can prevent the root of your rosemary plant from causing damage in your garden.

Therefore, you must take certain factors into due consideration. That said, below are some of the factors;

1. Space:

This is one of the key factors to avoid the invasiveness of the root of your rosemary plant. When planting, give enough space between the seeds.

It’s best to plant them 18-24 inches apart for the best results. This will prompt its growth and allow free passage of oxygen.

2. Soil:

Your plant prefers well-drained soil where it’ll be able to fully establish its roots. A soil with a high water retention capacity will not fare well for your plant’s roots, and this could lead to root rot.

So, it’s advisable to use well-drained soil for your rosemary plant.

3. Sunlight:

This factor can not simply be overemphasized as it plays a major role in the development of your plant. Expose your rosemary plant to at least five to six hours of sunlight daily.

This will strengthen its roots and prevent competition amongst the plants. Furthermore, your rosemary plant is drought tolerant and as such, it does not need much water for its survival and sustenance.

You can also do well by planting your rosemary in a confined area, and this will go a long way to prevent invasion.

Do Rosemary Plants Spread?

Most plants such as carpet grass, tend to circulate evenly on a field or any given ecological habitat. Your rosemary plant also spreads out once it is fully grown. It grows up to 4 feet in height and spreads evenly about 4 feet on the ground as well.

This growth is perfect for xeriscaping and landscape gardening, as your rosemary plant can supplement the décor of your environment.

And this spread turns out to be more advantageous than harmful, as you could have tourists all over the world trooping in. With that established, you can plant your rosemary specifically for its aesthetic value.

Does Rosemary Take Over a Garden?

Rosemary is just like any other plant that needs care and maintenance, especially in the early days of germination. It can grow healthily in the right conditions and can disperse widely if planted in an open area.

 Your garden for one is one of the best locations suitable for planting your rosemary plant. However, due to its rapid growth and its ability to proliferate, you may begin to ponder, if the plant will take over your garden.

Your rosemary plant will not take over your garden, provided you nurture and prune it regularly. That said, it’s safe to grow it near other plants like beans, sage, hot peppers, and cabbage.

 It serves as an excellent ground cover for your rock garden or herb garden. It also grows along the sidelines of the walkway, coastal areas which add beauty to the landscape.

Does Rosemary Have Deep Roots?

Generally, plants possess different root systems, some could have a fibrous root(shallow-rooted) while others could have a tap root(deep-rooted). Rosemary is an evergreen shrub that has deep roots which holds fast to the soil.

Its deep roots are why rosemary is propagated by stem cutting, as it is quite difficult to pull out its roots from the ground. Rosemary is always mistaken for a shallow-rooted plant due to its ability to spread, but this is definitely not the case.

Deep-rooted plants such as rosemary can also spread out despite growing deep into the soil. And this is another reason why this special plant is considered unique amongst other plants.

Many horticulturalists are advised to plant rosemary for its ornamental purposes, and it could also fetch them a handsome amount.


Rosemary is an egregious plant that serves culinary, herbal, and ornamental purposes. Its leaves and roots tend to extend in its environment, and this poses a threat to the survival of other beneficial plants.

However, this invasion can be controlled and reduced if the right amount of care is given. Although the plant spreads, it turns out to be more beneficial and doesn’t affect the growth of plants in your garden.

Also, they make excellent ground covers for your rock or herb garden, as it adds beauty to your environment. Its deep roots make it unique as it can regenerate itself and save you the stress of replanting.

So if you’re looking for a plant that can replant itself, rosemary is an excellent choice.


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