How to Balance pH for Blanket Flower (Gaillardia)

Blanket flower (Gaillardia) is a beautiful and hardy perennial that adds vibrant colors to any garden. To ensure healthy growth and abundant blooms, it’s essential to maintain the proper soil pH balance for these plants. In this article, we’ll guide you through the process of balancing pH for blanket flowers, including identifying pH issues, using chemical treatments, and applying home remedies.

What Is the Ideal pH Range for Blanket Flower (Gaillardia)?

Blanket flowers thrive in slightly acidic soil with a pH between 5.5 and 7.0. This range allows the plants to absorb nutrients efficiently, promoting healthy growth and vibrant blooms. If the soil pH is too alkaline or acidic, it can lead to nutrient deficiencies and other growth issues.

How to Test Soil pH for Blanket Flower (Gaillardia)

Blanket Flower (Gaillardia)

To determine if your soil’s pH is suitable for blanket flowers, you can use a soil pH test kit, available at most garden centers or online. Follow these steps:

  1. Collect soil samples from various locations in your garden where you plan to grow blanket flowers.
  2. Mix the samples together to create a representative sample.
  3. Follow the instructions provided with your soil pH test kit to measure the pH level.

If the pH is outside the ideal range of 5.5 to 7.0, you’ll need to take steps to adjust it.

How to Adjust Soil pH for Blanket Flower (Gaillardia) Using Chemical Treatments

If your soil pH is too alkaline (above 7.0), you can lower it by adding sulfur. The amount of sulfur needed depends on your soil type and the current pH level. As a general guide:

  • Sandy soil: Use 1 pound of sulfur per 100 square feet to lower pH by 1 point.
  • Loamy soil: Use 1.5 to 2 pounds of sulfur per 100 square feet to lower pH by 1 point.
  • Clay soil: Use 2 pounds of sulfur per 100 square feet to lower pH by 1 point.
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Apply the sulfur evenly over the soil surface and work it into the top 6 inches of soil. Water the area thoroughly after application. It may take several months for the sulfur to take full effect, so be patient and retest the soil pH after 3-4 months.

Home Remedies for Balancing pH in Blanket Flower (Gaillardia) Gardens

Blanket Flower (Gaillardia) 2

In addition to chemical treatments, there are several home remedies you can use to balance soil pH for blanket flowers:

  1. Coffee grounds: Sprinkle used coffee grounds around the base of your blanket flowers to gradually lower soil pH. Use about 1 cup of coffee grounds per plant, and repeat every 4-6 weeks.

  2. Pine needles: Apply a 2-inch layer of pine needles as mulch around your blanket flowers. As the needles decompose, they’ll release acids that lower soil pH.

  3. Compost: Incorporate well-decomposed compost into the soil before planting blanket flowers. Compost helps buffer soil pH and improves overall soil health.

How Long Does It Take to Balance pH for Blanket Flower (Gaillardia)?

The time required to balance soil pH for blanket flowers depends on the method you use and the initial pH level. Chemical treatments like sulfur may take 3-4 months to fully adjust the pH, while home remedies like coffee grounds and pine needles may take longer to show results. Regularly monitor your soil pH and the health of your blanket flowers to determine if additional treatments are needed.

Watering and Temperature Requirements for Blanket Flower (Gaillardia)

In addition to maintaining the proper soil pH, blanket flowers require well-draining soil and moderate watering. Water deeply once or twice a week, depending on rainfall and soil moisture. Avoid overwatering, as this can lead to root rot and other issues.

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Blanket flowers are heat-tolerant and thrive in full sun, making them an excellent choice for hot, dry locations. They can withstand temperatures up to 90°F (32°C) and are drought-tolerant once established.

Fertilizing Blanket Flower (Gaillardia)

Blanket flowers are not heavy feeders and can thrive in poor soil. However, a light application of a balanced, slow-release fertilizer in spring can help promote healthy growth and blooming. Avoid high-nitrogen fertilizers, as they can lead to leggy growth and reduced flowering.

When applying fertilizer, always follow the label instructions carefully. Water the plants thoroughly before and after fertilizing, and apply the fertilizer to the root zone, avoiding contact with the foliage. If you’re unsure about which fertilizer to use, consider performing a soil test to identify any nutrient deficiencies and choose a fertilizer accordingly.


Balancing pH for blanket flowers (Gaillardia) is essential for ensuring healthy growth and abundant blooms. By maintaining a slightly acidic soil pH between 5.5 and 7.0, you can create the ideal growing conditions for these vibrant perennials. Use a soil pH test kit to determine your soil’s current pH level, and apply chemical treatments like sulfur or home remedies like coffee grounds and pine needles to adjust the pH as needed. With proper care and attention to soil pH, your blanket flowers will thrive and provide stunning color to your garden for years to come.

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