Updated: May 16, 2022

Dahlias are beautiful and vibrant flowers that add color to any garden. However, despite their beauty, they can be prone to diseases and pests which can cause them to die. If you have a dying dahlia plant, don’t worry, there are ways to save it. In this article, we will discuss how to save a dying dahlia plant.

Signs of a Dying Dahlia Plant

Before we discuss how to save a dying dahlia plant, it is important to know the signs of a dying dahlia plant. Here are some common signs:

  • Yellowing leaves
  • Wilting leaves
  • Black or brown spots on leaves or stems
  • Stunted growth
  • Drooping stems
  • Lack of blooms or buds

If you notice any of these signs in your dahlia plant, it is important to take action immediately to save it.

Causes of a Dying Dahlia Plant

There are several reasons why a dahlia plant may be dying. Some of the most common causes include:

  • Overwatering or underwatering
  • Soil that is too compacted
  • Pests or diseases
  • Lack of nutrients
  • Exposure to extreme heat or cold

How to Save a Dying Dahlia Plant

Now that you know the signs and causes of a dying dahlia plant, let’s discuss how to save it. Here are some steps you can take to revive your dahlia plant:

Step 1: Identify the Problem

The first step in saving a dying dahlia plant is identifying the problem. Check for pests, diseases, or signs of overwatering or underwatering. Once you have identified the problem, you can move on to the next step.

Step 2: Remove Dead Leaves and Stems

Remove any dead or diseased leaves and stems from the plant. This will help prevent the spread of disease and allow the plant to focus its energy on healthy growth.

Step 3: Water Properly

Make sure you are watering your dahlia plant properly. Dahlia plants need well-draining soil, so make sure the soil is not too compacted. Water deeply once a week, and make sure the soil is dry before watering again.

Step 4: Fertilize

Fertilize your dahlia plant with a balanced fertilizer every four to six weeks during the growing season. This will provide essential nutrients for healthy growth.

Step 5: Provide Shade

If your dahlia plant is exposed to extreme heat or direct sunlight, provide some shade. This will help prevent wilting and sunburn.


How often should I water my dahlia plant?

Dahlia plants need to be watered deeply once a week, and the soil should be allowed to dry before watering again.

What type of fertilizer should I use for my dahlia plant?

Use a balanced fertilizer that contains equal amounts of nitrogen, phosphorus, and potassium.

Can I save a dahlia plant that has been affected by powdery mildew?

Yes, you can save a dahlia plant that has been affected by powdery mildew. Remove any affected leaves and treat the plant with a fungicide.

Should I prune my dahlia plant?

Yes, you should prune your dahlia plant regularly to promote healthy growth and prevent disease. Remove any dead or diseased leaves and stems.

How do I prevent pests from attacking my dahlia plant?

To prevent pests from attacking your dahlia plant, keep the area around the plant clean and free of debris. Use organic pest control methods such as neem oil or insecticidal soap.