Sister Plants for Tomatoes: A Guide to Companion Planting

Table Of Content

1. Sister Plants for Tomatoes
   1. Basil
   2. Marigolds
   3. Nasturtiums
   4. Borage
   5. Garlic
2. Benefits of Companion Planting with Tomatoes
   1. Natural Pest Control
   2. Improved Flavor
   3. Increased Biodiversity
   4. Soil Improvement
3. Tips for Successful Companion Planting
   1. Choose the Right Plants
   2. Plant at the Right Time
   3. Spacing Matters
   4. Rotate Your Crops
4. FAQs
   1. Q: Can I grow any type of basil with my tomatoes?
   2. Q: How far apart should I plant my marigolds from my tomatoes?
   3. Q: Can I use garlic powder instead of planting garlic bulbs?
   4. Q: How many sister plants should I grow alongside my tomatoes?
   5. Q: Do I need to fertilize my sister plants separately from my tomatoes?
   6. Image sister plants for tomatoes

Tomatoes are a popular garden crop due to their versatility in the kitchen and ease of cultivation. However, they are also susceptible to pests and diseases that can devastate your crop. Luckily, companion planting with certain "sister plants" can help deter these issues and promote healthy growth.

Sister Plants for Tomatoes

Companion planting involves selecting specific plants to grow alongside your target crop. In the case of tomatoes, there are several sister plants that can benefit them, including:

Basil

Basil is a natural insect repellent that can keep pests like aphids and whiteflies away from your tomatoes. Additionally, its aroma can improve the flavor of your tomatoes when grown together.

How to Plant Basil with Tomatoes

To plant basil with tomatoes, simply sow the seeds around the base of the tomato plants. Be sure to space them out enough so they don't overcrowd each other.

Marigolds

Marigolds are another excellent insect repellent that can ward off nematodes and other soil-borne pests. They also add a pop of color to your garden!

How to Plant Marigolds with Tomatoes

Plant marigold seeds around your tomato plants or use pre-grown transplants. Make sure they are spaced out enough to avoid overcrowding.

Nasturtiums

Nasturtiums are another great option for repelling pests like aphids and whiteflies. They also attract beneficial insects like ladybugs and lacewings.

How to Plant Nasturtiums with Tomatoes

Plant nasturtium seeds around the base of your tomato plants. They can also be grown in pots alongside your tomatoes.

Borage

Borage is a great companion plant for tomatoes as it attracts beneficial insects like bees and parasitic wasps. It also has deep roots that can help break up compacted soil, making it easier for your tomatoes to grow.

How to Plant Borage with Tomatoes

Plant borage seeds around your tomato plants or use pre-grown transplants. Be sure to give them enough space to avoid overcrowding.

Garlic

Garlic is a natural insecticide that can repel pests like aphids and spider mites. It can also improve the flavor of your tomatoes when grown together.

How to Plant Garlic with Tomatoes

Plant garlic bulbs around the base of your tomato plants in the fall. This will give them time to establish before the growing season.

Benefits of Companion Planting with Tomatoes

Companion planting with sister plants can benefit your tomatoes in several ways, including:

Natural Pest Control

As mentioned, many sister plants are natural insect repellents that can keep pests at bay without harmful chemicals.

Improved Flavor

Certain sister plants, like basil and garlic, can improve the flavor of your tomatoes when grown together.

Increased Biodiversity

Growing a variety of plants together can promote biodiversity and create a healthier ecosystem in your garden.

Soil Improvement

Sister plants with deep roots, like borage, can help break up compacted soil and improve overall soil health.

Tips for Successful Companion Planting

To get the most out of companion planting with tomatoes, keep these tips in mind:

Choose the Right Plants

Be sure to choose sister plants that are compatible with your tomatoes and will provide the desired benefits.

Plant at the Right Time

Plant sister plants at the same time as your tomatoes or a few weeks after they have been planted.

Spacing Matters

Make sure to give each plant enough space to avoid overcrowding and competition for resources.

Rotate Your Crops

Rotating your crops every year can help prevent soil-borne diseases and pests from building up over time.

FAQs

Q: Can I grow any type of basil with my tomatoes?

A: Yes! Any variety of basil will work well as a sister plant for tomatoes.

Q: How far apart should I plant my marigolds from my tomatoes?

A: Aim for spacing of 6-12 inches between tomato plants and marigolds.

Q: Can I use garlic powder instead of planting garlic bulbs?

A: Unfortunately, no. Garlic powder will not have the same insect-repelling properties as fresh garlic plants.

Q: How many sister plants should I grow alongside my tomatoes?

A: It's generally recommended to plant one or two sister plants per tomato plant.

Q: Do I need to fertilize my sister plants separately from my tomatoes?

A: No, you can fertilize them all together as long as they have similar nutrient requirements.


Companion planting with sister plants is a great way to improve the health and productivity of your tomato crop. By selecting the right plants and following some basic tips, you can create a diverse and thriving garden ecosystem. Happy planting!

Image sister plants for tomatoes