10 Best Companion Plants for Zinnias

In this guide, I’ll introduce you to some of the best companion plants for zinnias so you can produce a healthy and vibrant garden display.

What Are Companion Plants?

Companion plants are plants that provide benefits to those around them. They may help attract pollinators, improve the soil structure, or draw in predatory insects that feed on plant pests.

Tips on Choosing Companion Plants for Zinnias

When choosing companion plants for zinnias, it’s helpful to think about a zinnia plant’s needs. These plants like full sun, well-drained soil, and moderate moisture.

Now let’s get into answering the main question. 

10 Best Companion Plants for Zinnias

1. Celosia

Since zinnias are annual crops, it makes sense to plant them with other annual flowers. Both spiked and cockscomb celosia provides a nice contrast to the round zinnia flowers.

2. Sunflower

Sunflowers and zinnias both thrive in summer, making them good companions. Sunflowers’ large flowers also attract many insects that help keep zinnia pests down.

3. Sweet Alyssum

Aphids are one of the most common zinnia pests and can quickly weaken plants. However, pesticides aren’t the only way to remove aphids.

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