How to Care for Zinnias in the Cut Flower Garden

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Keep your zinnia cut flowers in top shape with these essential care tips. Follow along to learn how to grow healthy and thriving zinnias in your cut flower garden.


Water deeply to make sure the soil is evenly moist but not waterlogged. Avoid overhead watering, as wet foliage can lead to fungal diseases.

Water Your Zinnias


Once planted in the ground, zinnias grow quickly, so be sure to stake them early while they are still young. Keep them protected from the wind and rain.

Support Zinnias Early

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Pinch Young Zinnia Plants

For longer stems, pinch the plants once they're 12" tall and have at least 3 sets of leaves on each stalk. Snip 3-4 inches off the top, just above the leaf joint, with clean, sharp pruners.

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Zinnias are considered a “dirty flower,” which means the water in the vase will discolor faster than other flowers. Add a drop or two of bleach to the water to help it stay clean.

Harvest Zinnias for More Blooms


Deadhead spent flowers to help focus the plant’s energy on producing new flowers without going to seed.

Deadhead Spent Flower Heads

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Add a Layer of Mulch

Apply a 2-3” layer of organic mulch around the base of your plant to conserve moisture, suppress weed growth, and regulate soil temperature.

Use organic pest control methods like insecticidal soap or neem oil to manage pest infestations. Proper spacing and air circulation can help prevent fungal diseases.


Protect from Pests & Diseases

By following these care tips, you’re on your way to growing a gorgeous garden of cut flower zinnias.  For more info on growing zinnias, be sure to visit the blog.

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