8 Best Tricks for Never Ending Zinnia Blooms in Your Garden

Raul Cornelius is a Senior Editor at BalconyGardenWeb and an expert in flower and herb cultivation based in Phoenix, Arizona. A frequent speaker at horticultural events, he is also an active contributor to Facebook flower groups. Holding an MBA and a BCom, Raul blends his gardening skills with strong leadership and analytical abilities. Passionate about writing and photography, he enjoys early mornings with coffee and books, and nature bike rides during weekends.
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We’ve got the best Tricks for Never Ending Zinnia Blooms in Your Garden! What are you waiting for? Try them today!

Zinnias are easy to grow and have a long bloom time. They also attract plenty of pollinators, making them the top choice for any garden. So, if you need never-ending zinnia blooms in your garden, here are the best tricks!


Best Tricks for Never Ending Zinnia Blooms in Your Garden

1. Grow High-Quality Seeds

The foundation of a great Zinnia flower begins with the seeds you choose. You should get high-quality ones from a trusted nursery or find them online.

Zinnia elegans ‘Queen Lime,’ Zinnia ‘Benary’s Giant,’ Zinnia ‘Profusion,’ Zinnia elegans ‘Zowie! Yellow Flame,’ and Zinnia ‘Thumbelina’ are some of the best options you have!

Just like the right ingredients are the core of a delicious recipe! Good seeds and varieties are a must if you want overflowing Zinnias. Plus, don’t make these mistakes.

2. Water From the Base

You already know that finding the sweet watering spot for any plant is key to its health. So, how can you get to it with zinnias? It’s simple—give it enough water at the base to soak the roots without spilling it on the leaves.

Misting or wetting the foliage will create a moist environment, which can promote the growth of fungi, such as powdery mildew, which can wreak havoc on the health of plants, resulting in fewer or no blooms at all.

3. As Much Sun as Possible

Sun is the secret weapon when it comes to never-ending flowers in any plant, and Zinnias are no different. These beauties thrive in spots that get 6-8 hours of direct sunlight daily, so the brighter the spot is, the brighter your Zinnias will be.

4. Pinching When Young

Here’s a little trick you can use to let it bloom to its full potential. Pinching! You shouldn’t be afraid to gently pinch off the topmost growth tip of your young Zinnia flowers.

Do it once they reach 4-6 inches tall, and it will lead to bushier growth. Don’t just take our word for it—do it and see the results with your eyes.

5. Keep the Soil Evenly Moist

Make sure to keep the water moist throughout. The key is to mimic a refreshing summer rain. If the soil grows dry completely, the plant will cease blooming.

During the hot or dry weather, you might need to water them a bit more, and when the weather turns cold, you’ll have to do it less.

A simple finger test can become your best friend: stick your finger into the soil up to the first knuckle. If it feels dry, it’s watering time!

6. Deadheading Is a Must

If you want never-ending Zinnia flowers in your garden, you can’t let spent flowers steal the show. They soak up all the plant’s energy, so you have to take matters into your own hands and make way for new ones.

Just deadhead any flowers, and the plant will focus its resources on producing new flowers.

7. Apply Fertilizer Rich in Phosphorus

You must be enjoying your Zinnias with the above tips, but we’ve still got a couple more up our sleeves. As the flowers mature and enter their prime blooming stage, give them a fertilizer that is rich in phosphorus.

Phosphorus plays a great role in seed and flower development and will boost bloom growth. A balanced one (like 10-15-10, after diluting to 1/2 of its strength) would be great for this. Once in 5-6 weeks is enough.

You can also go with these bloom-boosting fertilizers.

8. Use Fish Emulsion and Bone Meal

Why don’t you try something organic like fish emulsion or bone meal? Fish emulsion is abundant in nitrogen, which promotes healthy foliage, and bone meal is rich in phosphorus and calcium, which are necessary for stronger roots and plenty of flowers. That’s what you’re going for, right?

For fish emulsion, dilute one spoon in a gallon of water and use it to water your Zinnia. For bone meal, sprinkle 1/4 cup per pot, every once or two months.  

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