Plant Doctor Pty Ltd
Shopping Cart 0
  • Grow Zone

      Lawns

      Gardens

      Agriculture

      Indoor Plants
  • Fertilisers

      Granular

      Liquid

      High in Iron
  • Soil Health

      Soil Conditioners

      Soil Amendments

      Soil Wetters
  • Weed & Pest
  • Bundles
  • More

      Equipment

      Health

      Animals

      Vouchers
  • Wholesale

      Register for Wholesale Pricing

      Buy in Bulk - Pallets, 200L, 1000L
  • Resources

      Application Rates Calculator

      Product Usage Guide

      SDS

      FAQ
  • Learn

      Blog

      Gallery

      News

      About Us
  • My Account
  • Home
  • Our Blog
  • 5 Most Common Symptoms of Vitamin Deficiency On Your Lawn

5 Most Common Symptoms of Vitamin Deficiency On Your Lawn

Plant Doctor 27 February 2023

Are you noticing your once lush green lawn turning yellow or brown?

Well, it's the last day of summer and what an unusual summer we've had!

Over the previous three months, the east coast of Australia has experienced extreme variances from well below average temperatures to days where most Queenslanders sweltered, with some days reaching 100% humidity followed by torrential rain and damaging storms.

You're not alone if you've struggled to keep your lawn and garden maintenance looking great, and it might not be a lack of water or mowing causing the issue but rather a vitamin deficiency.

That's right; just like humans, plants also need specific vitamins and minerals to thrive.

In this blog post, we'll discuss the five most common symptoms of a vitamin deficiency in your lawn, so you can identify the problem and take steps to fix it.

Before we dive in, let's first understand why vitamins are essential for the health of your lawn.

They act as catalysts for various biochemical reactions that occur in the plant's cells.

Each vitamin has a specific function, and any deficiency can affect the plant's health.

Let's look at the five most common symptoms of a vitamin deficiency in your lawn.


1: Yellowing Leaves

 

Yellow Lawn From Vitamin Deficiency


One of the most common symptoms of a vitamin deficiency in your lawn is yellowing leaves.

If your lawn is not getting enough vitamin B, the leaves will start turning yellow, starting from the tips and gradually spreading towards the base of the blade. This is known as chlorosis, and a lack of chlorophyll, the pigment responsible for the green colour in plants, causes it.

Chlorophyll requires vitamin B to synthesise, so a deficiency in this vitamin can lead to a lack of chlorophyll and, in turn, yellowing leaves.

If you notice yellowing leaves on your lawn, it's essential to treat your lawn quickly.

Failing to address the problem can result in stunted growth, reduced photosynthesis, and a struggling lawn.


2: Stunted Growth


Another common symptom of a vitamin deficiency in your lawn is stunted growth.

If your lawn is not getting enough vitamin C, it can slow its growth rate.

Vitamin C is a vital nutrient for plant growth as it helps form new cells and tissues.

It also helps absorb iron, another essential nutrient for plants.

A deficiency in vitamin C can lead to stunted growth, as the plant will struggle to produce new cells and tissues.

This can result in a thin, patchy lawn and reduced resistance to pests and diseases.


Weak Roots


Vitamin D is essential for root development, as it helps the plant absorb the calcium necessary for forming solid roots.

A deficiency in vitamin D can lead to weak and shallow roots, which can cause the plant to become unstable and more susceptible to damage.


Brittle Stems


If the stems of your lawn are brittle and easily breakable, it could be a sign of vitamin deficiency.

Vitamin E is essential for plant cell membranes, as it helps protect them from oxidative damage.

Without vitamin E, the plant's cell membranes weaken, leading to brittle stems and reduced structural integrity.

This can make the plant susceptible to wind, rain, and other environmental damage.


Discoloured or Spotted Leaves


Lastly, noticing discoloured or spotted leaves in your lawn could indicate a vitamin A deficiency.

Vitamin A is essential for photosynthesis, as it helps absorb light energy.

It also plays a crucial role in the plant's immune system, helping it to fight off pests and diseases.

A deficiency in vitamin A can lead to discoloured or spotted leaves, as the plant will struggle to absorb light energy efficiently.

This can lead to reduced photosynthesis and a weakened immune system, making the plant more susceptible to damage from pests and diseases.

To fix this issue, apply a fertiliser high in vitamin A or add organic matter to your soil.

Additionally, it's essential to ensure that your lawn is not exposed to excessive shade or water, as these conditions can also lead to a deficiency in vitamin A.

By identifying the symptoms of a vitamin deficiency, you can take steps to fix the problem and prevent further damage to your lawn.


How do you prevent and fix these issues with your lawn?


Seaweed Secrets from Plant Doctor is a natural, organic soil conditioner and fertiliser made from dried and ground kelp and is one of Australia's favourite lawn supplements.

Made here in Australia, Seaweed Secrets (Kelp) attributes include 77 minerals, 17 amino acids, chelating agents, and complex sugars with added Humic and Fulvic Acid (high quality)
benefits.

Kelp is, without a doubt, an indispensable soil enrichment product. It is a rich source of vitamins, minerals, and other beneficial plant nutrients to help your lawn overcome various deficiencies.


Here's how a concentrated kelp fertiliser can help with each of the symptoms of a vitamin deficiency in your lawn:

 


Yellowing Leaves


Kelp fertiliser is an excellent nitrogen source, one of the essential plant nutrients.

Nitrogen is necessary for forming chlorophyll, the green pigment in plants responsible for photosynthesis.

Seaweed Secrets can help to provide your lawn with the nitrogen it needs to produce healthy and vibrant green leaves.


Stunted Growth


Phosphorus is essential for developing roots, stems, and flowers in plants.

Seaweed Secrets is an excellent source of phosphorus and other micronutrients essential for plant growth.

By providing your lawn with Plant Doctor's Seaweed Secrets kelp soil conditioner and fertiliser, you can help to promote healthy root development, leading to more robust plants.


Weak Roots

 

Dying Grass Roots

 

Along with a Vitamin A deficiency, weak roots are often a sign of a potassium deficiency.

Potassium is essential for plant growth and development and helps regulate water movement in the plant.

Seaweed Secrets is a rich source of potassium, which can help strengthen your lawn's roots.

Stronger roots will make healthier plants more resistant to drought and other environmental stressors.


Brittle Stems


Vitamin E is essential for developing healthy cell walls, which help to provide structure and support to the plant.

Seaweed fertiliser is a natural source of vitamin E, which can help to promote the development of strong and healthy cell walls in your lawn.


Discoloured or Spotted Leaves


Kelp fertiliser is a rich source of vitamin A, which can help to promote healthy photosynthesis and strengthen the plant's immune system.

Using a concentrated kelp fertiliser and soil conditioner can help prevent discoloured or spotted leaves and keep your lawn looking healthy and vibrant.

Overall, Seaweed Secrets is an excellent solution for addressing the symptoms of a vitamin deficiency in your lawn.

You can promote healthy plant growth and prevent further damage by providing your lawn with the essential nutrients it needs to grow and thrive.

Whether it's yellowing leaves, stunted growth, weak roots, brittle stems, or discoloured leaves, Plant Doctor's Seaweed Secrets can help to address the underlying issue and
promote healthy and vibrant plant growth.

So, to keep your lawn looking its best, consider using a concentrated kelp fertiliser as a natural and organic solution to your lawn's nutrient needs.


How To Apply It?


Here's a step-by-step guide on how to apply Seaweed Secrets concentrate to your lawn.

One of the significant advantages of the Seaweed Secrets concentrate is it can be applied to all lawn types throughout the year. Many lawn and garden professionals recommend using
it monthly in the cooler months and each fortnight as the weather warms up across late Spring to early Autumn. It's the ideal stressbuster for lawns and gardens.

 

Step 1: Calculate the Required Amount

You need to calculate the required amount of concentrate to apply to your lawn.

For lawns and gardens, the recommended rate is 100 ml per 100 sqm (1 ml per 1 sqm) mixed with enough water to provide adequate coverage.

 


Step 2: Dilute the Concentrate

Our liquid kelp soil conditioner and fertiliser concentrate is highly concentrated and must be diluted before application.

Add the required amount of concentrate to a watering can or sprayer and add the appropriate amount of water according to the recommended rate mentioned above.

Mix the solution thoroughly to ensure an even distribution of the fertiliser.

 


Step 3: Apply the Fertiliser

Once you've diluted and mixed the Seaweed Secrets concentrate, it's time to apply it to your lawn.

The most effective way to apply Seaweed Secrets is by using a watering can or sprayer.

Start at one end of your lawn and slowly pour the fertiliser solution onto the grass, working your way to the other end.

If using a sprayer, apply an even and consistent coat across the entire lawn.

 


Step 4: Water Your Lawn

After applying Seaweed Secrets to your lawn, it's essential to give it light water to help provide nutrients to the soil.

 


Step 5: Repeat the Process


It's also essential to repeat the process of applying the Seaweed Secrets regularly to help maintain a healthy and vibrant lawn.

For established lawns, apply the fertiliser every 2-4 weeks, while for new lawns, it's recommended to use it at half the normal strength weekly. Consistency ensures your lawn receives the essential nutrients it needs to grow and thrive.

Following these instructions, you can apply the fertiliser safely and effectively, ensuring your lawn and gardens stay healthy and vibrant all year. Remember to measure accurately, dilute the concentrate, and give your lawn a light water after application.

With regular application, your lawn will look its best, and you'll enjoy a lush and green outdoor space that you can be proud of and be the envy of your neighbours.

 

The Countdown is on! Don't miss out, Click here to order your Seaweed Secrets at 15% off before the timer runs out!

 

countdownmail.com

 

 

 

 

Back to blog

Share:

Leave a comment

Comments have to be approved before showing up

Customer Reviews

First time owning lawn. Gave the team at plant doctor a ring and they supplied me with a wealth of information. Products turned up quickly.

Billy Green

Will definitely be getting more 8 weeks difference been using stimulizer, activ8mate, soil wetter, seaweed secrets and champion fertiliser. Was super fast delivery.

Michael Preddy

Only have great things to say about Plant Doctor. Organic products and a competitive price, fast shipping and easy to contact with questions. Have had great results with the special mix for lawns, and my plants (indoor and outdoor) love the seaweed secrets. I am excited to test out some of the animal products soon!

Tim McAuliffe

Plant Doctor

Sign-up for exclusive deals and the latest news.

Website

  • Fertilisers
  • Soil Health
  • Bundles
  • Wholesale
  • Health

Service

  • My Account
  • Track Order
  • Resolution Centre
  • Become A Trade Partner

About Us

  • About Us
  • Our Blog
  • Contact Us

Information

  • Terms of Use
  • Privacy Policy
  • Returns Policy
  • Security Policy
  • Shipping Policy
© 2026 Plant Doctor. All Rights Reserved.
Apply Filters