How to Balance pH for Lilium Plants

Maintaining the proper pH level in the soil is crucial for the healthy growth and development of Lilium plants. The ideal soil pH range for most Lilium varieties is between 5.5 to 6.5. By following a few simple steps, you can effectively balance the pH and create the perfect growing environment for your Lilium plants.

Soil Testing

The first step in balancing the pH for Lilium plants is to test the soil. You can purchase a soil testing kit from a garden center or send a soil sample to a local extension service for analysis. This will provide you with the current pH level of your soil, which is essential for determining the necessary amendments.

Adjusting the Soil pH

liliumImage source: Pixabay

Lowering the pH

If the soil pH is too high, you can lower it by adding elemental sulfur or a sulfur-containing product to the soil. Sulfur flakes are a popular choice, as they can lower the pH by one point in approximately six weeks. When using sulfur, be sure to follow the manufacturer’s instructions carefully and apply the correct amount based on the size of your planting area.

Raising the pH

If the soil pH is too low, you can raise it by adding lime or a product containing calcium carbonate. However, it’s important to be cautious and not raise the pH too much, as most Lilium varieties prefer slightly acidic to neutral soil.

Organic Matter Addition

Incorporating organic matter, such as peat moss, into the soil can help to balance the pH and improve the soil’s structure and fertility. Peat moss has a pH of around 4.0, which can help to lower the soil pH if it is too high.

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lilium 2Image source: Pixabay

Fertilizing Lilium plants with a balanced fertilizer can help to maintain the soil pH and provide the necessary nutrients for healthy growth. Burpee recommends a soil pH of 6.5-7.0 for Lilies and suggests incorporating a moderate amount of a balanced fertilizer into the soil at planting time.

Monitoring the Soil pH

After balancing the soil pH, it’s essential to monitor it regularly to ensure it remains within the ideal range. You can use a soil testing kit to check the pH level every few months or after significant rainfall events.

Home Remedies

In addition to the above methods, you can also use home remedies to balance the soil pH for Lilium plants. One such remedy is Epsom salts, which can be used to boost the magnesium levels in the soil and improve the plant’s ability to absorb nutrients. To use Epsom salts, mix one tablespoon of Epsom salts with one gallon of water and spray the solution on the plant’s leaves.

Considerations for Specific Lilium Varieties

When balancing the soil pH for Lilium plants, it’s important to consider the specific needs and preferences of the Lilium variety you are growing. For example, Orientals do best in slightly acidic soil, while Asiatics, Lilium martagon, L. henryi, L. regale, L. pumilum (and their hybrids) perform well in neutral to slightly alkaline soils. Be sure to choose the right Lilium variety for your soil pH and amend the soil accordingly.


Balancing the soil pH for Lilium plants is a crucial step in ensuring their healthy growth and development. By testing the soil, amending it with sulfur or lime, adding organic matter, fertilizing appropriately, and monitoring the pH regularly, you can create the ideal growing conditions for your Lilium plants. Additionally, using home remedies, such as Epsom salts, can provide an extra boost to the plant’s nutrient absorption. By following these steps, you can enjoy the beautiful blooms of your Lilium plants for years to come.

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