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The Ultimate Guide to Growing Alyssum Companion Vegetables

alyssum companion vegetables

Alyssum Companion Vegetables: What Are They?

If you're a vegetable gardener, you may have heard of the term "companion planting." This is the practice of planting certain plants together in a way that benefits both plants. One popular companion plant for vegetables is alyssum.

Alyssum is a small flowering plant that belongs to the mustard family. It's often grown as an ornamental plant, but it can also be used as a companion plant for vegetables. When grown with vegetables, alyssum attracts beneficial insects and repels harmful ones. It also helps improve soil quality by adding nutrients and suppressing weeds.

In this article, we'll take a closer look at alyssum companion vegetables and how you can use them to improve your garden.

Section 1: The Benefits of Alyssum Companion Vegetables

Alyssum has several benefits when used as a companion plant for vegetables. Here are some of the most significant benefits:

Insect Attraction and Repuon

Alyssum is known for attracting beneficial insects like bees, hoverflies, and parasitic wasps. These insects help pollinate your vegetables and control pests naturally. Alyssum also repels harmful insects like aphids and whiteflies, helping to protect your vegetables from damage.

Soil Improvement

Alyssum has a shallow root system that helps break up compacted soil and add organic matter to it. This improves the overall health of your soil and makes it easier for your vegetables to grow.

Weed Suppression

Alyssum acts as a natural weed suppressant by releasing chemicals that inhibit the growth of weeds. This reduces the need for manual weeding, which can be time-consuming and labor-intensive.

Section 2: Choosing Alyssum Companion Vegetables

Not all vegetables are suitable for companion planting with alyssum. Some vegetables may benefit more from other companion plants, while others may not benefit at all. Here are some of the best vegetables to grow with alyssum:


Tomatoes are one of the best vegetables to grow with alyssum. Alyssum attracts beneficial insects that help pollinate tomatoes, leading to better yields. It also repels aphids, which are a common pest for tomato plants.


Cucumbers can also benefit from growing with alyssum. Alyssum attracts bees that help pollinate cucumber flowers, leading to better fruit production. It also repels whiteflies, which are a common pest for cucumber plants.


Squash is another vegetable that benefits from growing with alyssum. Alyssum attracts hoverflies that help control squash bugs, which are a common pest for squash plants. It also repels aphids and whiteflies.

Section 3: How to Plant Alyssum Companion Vegetables

Planting alyssum companion vegetables is relatively easy. Here's how you can do it:

Step 1: Choose Your Alyssum Variety

There are several varieties of alyssum to choose from, but the most popular ones for companion planting are sweet alyssum (Lobularia maritima) and basket-of-gold alyssum (Aurinia saxatilis). Both varieties have small, fragrant flowers that attract beneficial insects.

Step 2: Choose Your Vegetable Variety

As we discussed earlier, not all vegetables are suitable for companion planting with alyssum. Choose the vegetables you want to grow and research which ones benefit from growing with alyssum.

Step 3: Prepare Your Soil

Before planting, prepare your soil by removing any weeds and adding organic matter like compost or aged manure. Make sure the soil is well-draining and has a pH between 6.0 and 7.5.

Step 4: Plant Your Alyssum and Vegetables

Plant your alyssum seedlings around the perimeter of your vegetable bed, spacing them about 6 inches apart. Then, plant your vegetables in the center of the bed, leaving enough space between each plant for them to grow.

Step 5: Water and Maintain

Water your plants regularly and keep an eye out for pests and diseases. Remove any dead or diseased plant material promptly to prevent the spread of disease.

Section 4: Tips for Growing Alyssum Companion Vegetables

Here are some tips to help you get the most out of your alyssum companion vegetables:

Tip 1: Small

If you're new to companion planting, with a small bed to experiment with. This will give you a chance to see how well alyssum does as a companion plant for your specific vegetables.

Tip 2: Choose the Right Variety

As we mentioned earlier, not all alyssum varieties are suitable for companion planting. Choose sweet alyssum or basket-of-gold alyssum for best results.

Tip 3: Don't Overwater

Alyssum prefers well-draining soil and doesn't need a lot of water. Overwatering can lead to root rot and other problems.

Tip 4: Don't Use Chemical Pesticides

Chemical pesticides can harm the beneficial insects that alyssum attracts. Instead, use natural pest control methods like handpicking or using insecticidal soap.

Section 5: FAQs

Q1: Can I plant alyssum with any vegetable?

No, not all vegetables benefit from growing with alyssum. Do your research before planting to make sure you're pairing alyssum with the right vegetables.

Q2: Do I need to my alyssum seedlings indoors?

No, you can plant alyssum seedlings directly in the garden. However, ing them indoors can give them a head and lead to earlier blooms.

Q3: How often should I water my alyssum companion vegetables?

Water your plants regularly, but don't overwater. Alyssum prefers well-draining soil and doesn't need a lot of water.

Q4: What other companion plants can I use with alyssum?

Other popular companion plants for vegetables include basil, marigold, and nasturtium.

Q5: Can I use alyssum as a border plant?

Yes, alyssum makes an excellent border plant for vegetable beds. Its small, fragrant flowers add color and attract beneficial insects.

Alyssum companion vegetables are an excellent way to improve the health and productivity of your vegetable garden. By attracting beneficial insects, improving soil quality, and suppressing weeds, alyssum can help you grow healthier, more abundant crops. Remember to choose the right vegetables and alyssum variety, plant them correctly, and maintain your garden regularly for best results.

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