An extensive range of plant food and fertilisers
Here you'll find great deals on all-purpose feeds that can be used across the whole garden, as well as specialist combinations for the likes of orchids, roses, soft fruits and many more. We also stock lawn fertiliser for a lush, green centrepiece in your garden.
A 100% satisfaction guarantee on all our products gives you peace of mind, and you can stock up ahead of the growing season with our collection of garden tools and equipment from top brands.
Of course, there's more to a great harvest than just providing plant food, so check out our growing guides and gardening tips for more info.
Plant food FAQs
What is plant food?
Plant foods and fertilisers are organic and inorganic products that improve the vibrancy of plants by providing them with essential nutrients they need for growth.
Is plant food the same as fertiliser?
In essence, yes. Technically plants create their own 'food' via photosynthesis – like how we eat food to get the energy we need to fuel our growth. The terms plant 'food' and 'fertiliser' are often used interchangeably, while food is more commonly found on product names – perhaps as it better reflects how we use food for our health!
What is the best plant food?
Given there are so many feeds and fertilisers on the market, it can be head-spinning when trying to find the right plant food. Three elements are key for plants to grow and thrive: nitrogen, phosphorus and potassium. Generally, plant foods will contain an even mix of all three, but you might find that plant-specific foods will change levels depending on what you want from the plant. Nitrogen helps leaf and shoot growth, phosphorus aids healthier and stronger roots, and potassium is a crucial element in flower and fruit production. Tomato fertiliser, for example, is typically high in potassium.
Can I use ericaceous plant food on all plants?
Ericaceous plants favour acidic soil conditions. Examples include blueberries, azaleas and rhododendrons. Using ericaceous feed and compost on other plants shouldn't cause too much harm if other conditions are in their favour. Alkaline-favouring plants like lily of the valley and lavender likely won't benefit, and using acidic products with them could hamper growth.
Can too much plant food kill plants?
Yes, over-fertilising plants can be one way of spoiling your crop. Excessive nutrients can scar the roots of your plants, leading to discoloured leaves, an inability to flower or fruit and, ultimately, the death of your plants. All the seeds and plants we send to you come with easy-to-follow instructions that include guidance on feeding and fertilising.
Why choose Marshalls Garden for plant food and fertiliser?
- We've got 75 years of experience in helping gardeners get the most from small plots and vast acreages alike. And we've put that to good use, creating an online library packed with growing guides and gardening tips.
- If you need help with your order or you've got a puzzle to solve in your garden, our friendly support team is available six days a week – even on bank holidays.
- You'll get express delivery as standard with all our garden accessories like plant foods and fertilisers.
- We won silver at the 2022 Great British Growing Awards in the Best Online Retailer category.
- You'll love shopping with us, just like the thousands who have given us an 'Excellent' rating on Trustpilot.
