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The Best Companion Plants for Zinnias


best companion plants for zinnias
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Zinnias are one of the most popular annual flowers, known for their vibrant colors and long blooming period. However, they can benefit greatly from being planted alongside companion plants that provide support, attract beneficial insects, and improve soil quality. In this post, we'll explore some of the best companion plants for zinnias.

Zinnias: A Brief Overview

Before we dive into the companion plants, let's take a quick look at zinnias themselves. Zinnias are native to Mexico and Central America, but they have been cultivated all over the world for their showy blooms. They come in a wide range of colors, including pink, red, orange, yellow, and white, and they can grow up to 3 feet tall. Zinnias prefer full sun and well-draining soil, but they can tolerate a range of growing conditions.

Companion Plants for Zinnias

Marigolds

Marigolds are a classic companion plant for zinnias. They are known for their ability to repel harmful insects like aphids, while also attracting beneficial insects like ladybugs and lacewings. Marigolds also produce chemicals that can inhibit the growth of harmful nematodes in the soil. Plant marigolds around the perimeter of your zinnia bed or intersperse them throughout.

Nasturtiums

Nasturtiums are another great companion plant for zinnias. They are low-growing plants that can be used as a ground cover, and they produce brightly colored flowers that attract pollinators like bees and butterflies. Nasturtiums also have a pungent odor that can repel some harmful insects. Plant nasturtiums around the base of your zinnias or in between them.

Lavender

Lavender is a fragrant herb that can be used as a companion plant for zinnias. It attracts bees and other pollinators, while also repelling some harmful insects like moths and fleas. Lavender also has antimicrobial properties that can help prevent soil-borne diseases. Plant lavender near your zinnias or intersperse them throughout.

Borage

Borage is an annual herb that can be used as a companion plant for zinnias. It attracts pollinators like bees and butterflies, while also repelling some harmful insects like tomato hornworms. Borage also produces edible flowers and leaves that can be used in salads and other dishes. Plant borage near your zinnias or in between them.

Calendula

Calendula, also known as pot marigold, is another great companion plant for zinnias. It attracts beneficial insects like ladybugs and lacewings, while also repelling some harmful insects like aphids. Calendula also has medicinal properties and can be used in salves and other home remedies. Plant calendula around the perimeter of your zinnia bed or intersperse them throughout.

Sunflowers

Sunflowers are tall, showy plants that can be used as a companion plant for zinnias. They attract bees and other pollinators, while also providing support for the taller zinnias. Sunflowers also produce edible seeds that can be roasted and eaten. Plant sunflowers near your zinnias or in between them.

Herbs

Many herbs can be used as companion plants for zinnias. Basil, parsley, and dill are all known for attracting beneficial insects like bees and butterflies. They can also be harvested and used in cooking. Plant herbs near your zinnias or in between them.

Vegetables

Some vegetables can also be used as companion plants for zinnias. Cucumbers, beans, and peas are all nitrogen-fixing plants that can help improve the soil quality around your zinnias. They also attract pollinators like bees and butterflies. Plant vegetables near your zinnias or in between them.


Zinnias are beautiful flowers that can benefit greatly from being planted alongside companion plants. Marigolds, nasturtiums, lavender, borage, calendula, sunflowers, herbs, and vegetables are all great choices. By planting these companion plants, you can improve soil quality, attract beneficial insects, and enjoy a more diverse and beautiful garden.

FAQs

1. Can zinnias be grown in pots?

Yes, zinnias can be grown in pots as long as they have enough space to grow and receive plenty of sunlight.

2. How often should zinnias be watered?

Zinnias should be watered deeply once a week, or more frequently if the weather is particularly hot and dry.

3. Do zinnias need fertilizer?

Zinnias don't necessarily need fertilizer, but they will benefit from a balanced fertilizer applied once a month during the growing season.

4. Can zinnias be grown indoors?

Zinnias are best grown outdoors in full sun, but they can be ed indoors from seed and then transplanted outside once they are large enough.

5. What pests are common on zinnias?

Common pests that can affect zinnias include aphids, spider mites, and whiteflies. These pests can be controlled with insecticidal soap or neem oil.
Great, let's get ed then! Zinnias are beautiful and colorful flowers that can brighten up any garden. However, like any plant, they can benefit from the right companion plants to help them thrive.

One great companion plant for zinnias is marigolds. Marigolds are known to repel harmful insects and attract beneficial ones, which can help keep your zinnias healthy and flourishing. Additionally, marigolds have a bright and vibrant color that complements the look of zinnias.

Another fantastic companion plant for zinnias is salvia. Salvia has tall, spiky blooms that can serve as a nice contrast to the round, full shape of zinnias. Additionally, salvia attracts pollinators such as bees and butterflies, which can help pollinate your zinnias and promote healthy growth.

Lastly, cosmos is another great companion plant for zinnias. Cosmos has delicate, feathery foliage that can help create a nice texture contrast with the bold, solid leaves of zinnias. Additionally, cosmos blooms in a variety of colors that can complement and enhance the look of your zinnias.

Incorporating these companion plants into your zinnia garden can not only improve the health and growth of your zinnias, but also add some visual interest and diversity to your garden. Sure thing! Is there anything specific you would like to talk about or any questions you have? I'm here to chat and assist you in any way I can.


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