Whether you’re growing cherry tomatoes in containers on your patio or cultivating rows of courgettes and beans in an allotment, one thing is certain: your plants need the right fertiliser to thrive. Feeding with a quality tomato and vegetable fertiliser is key to strong growth, abundant yields, and flavour-packed produce.

At Devonia London, we understand that gardeners want a fertiliser that’s effective, convenient, and tailored to the needs of fruiting crops. That’s why our Tomato & Vegetable Fertiliser Sticks are a must-have for anyone looking to boost the productivity of their vegetable patch or greenhouse.

In this blog, we explore why fertilising is so important, when and how to do it, and why fertiliser sticks are one of the easiest solutions for home growers.

Why Use Fertiliser for Tomatoes and Vegetables?

Vegetable plants are heavy feeders. They require a steady supply of nutrients to fuel leaf production, flower formation, fruit set, and overall plant health. While compost and well-prepared soil provide a good base, they can’t always meet the ongoing nutritional demands, especially during peak growing season.

That’s where a targeted tomato and vegetable fertiliser comes in. Fertilisers provide essential nutrients like nitrogen (for leafy growth), phosphorus (for strong roots and flowering), and potassium (for fruit development and disease resistance). Without them, plants can suffer from stunted growth, yellowing leaves, and poor harvests.

Why We Recommend Our Tomato & Vegetable Fertiliser Sticks

Our Tomato & Vegetable Fertiliser Sticks are specially formulated to support the full growing cycle of fruiting crops. Whether you’re growing tomatoes, cucumbers, peppers, or beans, these slow-release sticks offer consistent feeding directly at the root zone where it’s needed most.

Key benefits include:

• Pre-measured and easy to use – No need to mix liquids or measure out powders. Simply insert the stick into the soil.
  
• Slow-release formula – Provides a steady supply of nutrients over time, reducing the risk of overfeeding or nutrient/fertiliser burn.
  
• Feeds for up to 60 days – Less time spent feeding, more time enjoying your garden!
  
• Suitable for both greenhouse and outdoor use – Versatile and adaptable for various growing environments.
  

Because they feed plants gradually and directly at the roots, fertiliser sticks are an excellent choice for beginner gardeners or busy growers who want low-maintenance but great results.

When Should You Fertilise Tomatoes and Vegetables?

Timing is everything when it comes to fertilising vegetables. Applying fertiliser too early can lead to leafy plants with no flowers, while feeding too late can limit fruit development. Here’s a general guide:

Planting Stage

When transplanting seedlings into the ground or containers, incorporate a balanced fertiliser into the soil. Devonia’s fertiliser sticks can be placed in the soil at this stage to give young plants a boost.

Flowering Stage

As soon as your plants begin to flower, they’ll need extra potassium to support fruit formation. This is the ideal time to apply another round of fertiliser sticks if needed, especially for heavy feeders like tomatoes.

Fruiting Stage

Continue feeding every 6–8 weeks, depending on the crop. Tomatoes, in particular, benefit from consistent feeding to keep the harvest coming and to avoid issues like blossom end rot.

How to Use Fertiliser Sticks: A Simple 3-Step Process

1. Insert the stick into the soil about 5–7cm (2–3 inches) from the base of the plant. Push it down so it’s covered by soil.
   
2. Water well to begin the slow-release process.
   
3. Repeat every 60 days during the growing season or as your plant shows signs of needing a boost.
   

Because the nutrients are released gradually, there’s no risk of washing them away with watering or rain—a common issue with liquid feeds.

The Benefits of Fertiliser Sticks Over Liquid or Granular Fertilisers

While all fertilisers serve a purpose, Devonia’s fertiliser sticks offer key advantages over traditional liquid or granular options:

• No mess or waste – No risk of overfeeding or splashing onto leaves.
  
• Root-targeted feeding – Delivers nutrients right where plants need them.
  
• Weather-resistant – Rain won’t wash them away, unlike granular feeds.
  
• Ideal for containers and raised beds – Especially useful in small or controlled environments.
  

They’re also a great eco-conscious choice, helping reduce run-off and allowing gardeners to fertilise more precisely.

Give Your Crops the Best Start This Season

A well-fed plant is a productive plant. By using a quality tomato and vegetable fertiliser, you are setting your crops up for success, whether it’s a juicy truss of cherry tomatoes or a bumper harvest of runner beans. With Devonia’s Tomato & Vegetable Fertiliser Sticks, feeding your garden has never been easier.

Are you ready to boost your vegetable garden? Head over to our website to view our full collection, as there’s more than one fertiliser stick. Have you seen our Border and Bedding Plants Fertiliser Sticks?