Will Roundup Kill Star Jasmine? The Effects and Alternatives

Hey there, gardening enthusiasts! If you’re like me, you probably love spending time in your garden, nurturing your plants, and battling pesky weeds that threaten your precious greenery.

Roundup is one of the most popular weed killers on the market, and you might be wondering whether it’s safe to use around your star jasmine – a popular and fragrant ornamental plant.

In this blog post, we’ll explore the effects of Roundup on star jasmine and discuss some alternative weed control methods to keep your garden looking fantastic. So, let’s dive in!

Will Roundup Kill Star Jasmine

Will Roundup Kill Star Jasmine?

To answer this burning question, we first need to understand what Roundup is made of and how it works. The active ingredient in Roundup is glyphosate, a non-selective herbicide that kills plants by inhibiting a crucial enzyme called EPSP synthase, which is essential for the production of certain amino acids. Essentially, this stops the plant from growing and eventually leads to its death.

Now, back to our main concern – will Roundup kill star jasmine? The short answer is: it can. Because glyphosate is a non-selective herbicide, it doesn’t discriminate between weeds and desirable plants like star jasmine. If you accidentally spray Roundup on your star jasmine or the herbicide drifts onto the plant, it can cause damage or even death.

It’s crucial to follow the label instructions on Roundup carefully and use caution when applying it around your star jasmine or other desired plants. And if you’re still not sure, consider some of the alternative weed control methods we’ll discuss later in this post.

The Impact of Roundup on Other Plants and the Environment

While we’re on the topic of Roundup, it’s essential to consider its impact on other plants and the environment. As a non-selective herbicide, Roundup can harm other plants in your garden, including flowers, shrubs, and even trees if they come into contact with the chemical. Additionally, Roundup can have unintended consequences, such as harming pollinators like bees and butterflies that visit your garden.

Recent studies have also raised concerns about the environmental impact of glyphosate. For example, it has been found that glyphosate can persist in soil and water, potentially affecting non-target plants and aquatic life. It’s worth considering these potential impacts before deciding whether to use Roundup in your garden.

Alternative Methods for Controlling Weeds Around Star Jasmine

If you’re hesitant to use Roundup around your star jasmine or are looking for more eco-friendly options, fear not! There are several alternative weed control methods that can help you maintain a healthy and beautiful garden.

Manual Weeding

Sometimes, the old-fashioned way is the best way. Manual weeding may be labor-intensive, but it offers precision and control that chemicals can’t match. Plus, you’ll be getting some exercise and fresh air, which is always a bonus! When pulling weeds by hand, make sure to remove the entire root system to prevent regrowth.


Mulching is a fantastic way to suppress weed growth while also benefiting your star jasmine. By spreading a layer of organic material (like wood chips, straw, or compost) around your plants, you’ll block sunlight from reaching the soil, making it more difficult for weeds to grow.

Mulching also helps retain soil moisture, regulate temperature, and add nutrients to the soil as the material breaks down. It’s a win-win for both you and your plants!

Organic Weed Control Methods

If you’re looking for an alternative to chemical herbicides like Roundup, there are several organic options available. Here are a couple of popular choices:

  • Vinegar: Household vinegar, which contains acetic acid, can be an effective natural weed killer. However, be cautious when using vinegar, as it can also harm desired plants if it comes into contact with them. Apply vinegar directly to weeds on a sunny day for the best results.
  • Corn Gluten Meal: This byproduct of corn processing acts as a pre-emergent herbicide, preventing weed seeds from germinating. Apply corn gluten meal in early spring to keep weeds at bay throughout the growing season. Keep in mind that this method is not effective on existing weeds.

How to Protect Star Jasmine from Accidental Roundup Exposure

If you choose to use Roundup in your garden, it’s essential to take precautions to protect your star jasmine and other desired plants from accidental exposure. Here are a few tips to help minimize the risk:

  • Use a shield: A homemade shield, like a piece of cardboard or a large plastic container with the bottom removed, can help protect your plants while you spray Roundup. Place the shield between the weeds and your star jasmine to prevent the herbicide from drifting onto your plant.
  • Apply on calm days: Wind can cause Roundup to drift onto desired plants, so it’s best to apply the herbicide on calm, windless days. Additionally, avoid spraying Roundup during extreme temperatures or when rain is expected, as this can reduce the effectiveness of the herbicide and increase the risk of damage to your plants.
  • Be precise: When applying Roundup, aim for precision. Use a narrow spray nozzle or a paintbrush to apply the herbicide directly to the weeds, avoiding contact with your star jasmine and other desired plants.


How long does it take for Roundup to work on weeds?

Roundup usually starts to work within hours of application, and you may notice the weeds starting to wilt and turn yellow. Complete weed death typically occurs within 1-2 weeks, depending on the type and size of the weed.

Can Roundup harm pets or humans?

Roundup has been classified as a potential human carcinogen by the International Agency for Research on Cancer (IARC). It’s essential to follow label instructions and take precautions when using Roundup, such as wearing protective clothing and keeping pets and children away from treated areas until the herbicide has dried.

Are there any glyphosate-resistant weeds?

Yes, some weeds have developed resistance to glyphosate due to its widespread use. Rotating herbicides and using other weed control methods, like those mentioned earlier in this post, can help slow the development of herbicide-resistant weeds.

How do I know if my star jasmine has been affected by Roundup?

Signs of Roundup damage on star jasmine may include yellowing, wilting, and curling of the leaves, as well as stunted growth. In severe cases, the plant may die.

Can star jasmine recover from Roundup exposure?

The ability of star jasmine to recover from Roundup exposure depends on the extent of the damage and the overall health of the plant. If your star jasmine shows signs of damage, it’s essential to provide proper care and attention to help it recover. Ensure it receives adequate water, nutrients, and sunlight, and consider pruning damaged areas to encourage new growth.


So, there you have it, folks! Roundup can indeed harm or even kill your beloved star jasmine, but there are steps you can take to protect your plants and alternative weed control methods that are safer and more environmentally friendly.

Remember, it’s always crucial to follow label instructions and use caution when using any herbicide in your garden. By doing so, you’ll help ensure the health and beauty of your star jasmine and other cherished plants. Happy gardening!

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