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Oxalis Weed Control: How to Keep Your Garden Free from This Pesky Weed

oxalis weed control

Oxalis: What Is It and Why Is It a Problem?

Oxalis is a common weed found in gardens all over the world. Also known as wood sorrel, this weed has clover-like leaves and small yellow or white flowers. While it may look pretty, oxalis is actually a big problem for gardeners. Here are some reasons why:

  • Oxalis spreads quickly and can take over large areas of your garden if left unchecked.
  • Its roots go deep into the soil, making it difficult to remove by hand.
  • Oxalis produces lots of seeds, so even if you manage to remove the existing plants, new ones will soon sprout up in their place.
  • It's resistant to many types of herbicides, making it tough to kill.

Preventing Oxalis from Taking Hold

The best way to deal with oxalis is to prevent it from taking hold in the first place. Here are some steps you can take to keep this pesky weed from getting a foothold in your garden:

1. Keep Your Garden Well-Maintained

One of the easiest ways to prevent weeds from taking over your garden is to keep it well-maintained. This means pulling weeds as soon as you spot them, watering regularly, and fertilizing when necessary. By keeping your garden healthy, you'll make it much harder for oxalis to grow.

2. Use Mulch

Mulch is a great way to suppress weeds and keep your garden looking neat and tidy. Apply a layer of mulch around your plants, being careful not to cover the stems or leaves. This will help prevent weeds from taking hold and make it easier for you to pull them out if they do.

3. Choose Your Plants Carefully

Some plants are more prone to attracting oxalis than others. If you're trying to keep this weed at bay, choose plants that are less susceptible to its charms. Good choices include lavender, rosemary, and thyme.

Removing Oxalis Once It's Taken Hold

If oxalis has already taken hold in your garden, don't despair. There are steps you can take to remove it and keep it from coming back:

1. Dig It Out

The most effective way to remove oxalis is to dig it out by hand. Use a trowel or fork to loosen the soil around the plants, then gently pull them out, being careful to get all of the roots. This can be time-consuming, but it's the best way to ensure that the weed is gone for good.

2. Use Herbicides

If you have a large infestation of oxalis, you may need to resort to herbicides. Look for a product that's specifically designed to target oxalis, and follow the instructions carefully. Be aware that many types of herbicides are toxic to other plants as well, so use with caution.

3. Solarize the Soil

Solarizing the soil is a technique that involves covering the affected area with clear plastic and allowing the sun to heat up the soil. This can kill off oxalis and other weeds, as well as any seeds that may be lurking in the soil. However, it's important to note that this method can also kill beneficial microorganisms in the soil, so use with caution.


1. Is oxalis harmful to humans or pets?

No, oxalis is not harmful to humans or pets. However, it can be a nuisance in gardens and can take over large areas if left unchecked.

2. Can I compost oxalis?

Yes, you can compost oxalis. However, be sure to remove all of the roots before adding it to your compost pile, as the roots can sprout new plants.

3. What's the best time of year to remove oxalis?

The best time to remove oxalis is in the spring, before it has a chance to spread. However, you can also remove it at any time during the growing season.

4. Will oxalis grow back after I remove it?

It's possible that oxalis will grow back after you remove it, especially if you don't get all of the roots. However, by following the prevention and removal steps outlined above, you can keep this weed at bay.

5. Are there any natural remedies for oxalis control?

Some gardeners swear by natural remedies such as vinegar, boiling water, or salt. While these methods may kill off the existing plants, they can also harm beneficial microorganisms in the soil and make it difficult for other plants to grow. Use with caution.

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