(A simple, realistic guide for beginners)
⸻
🌱 Let’s start with the truth
Fertiliser is one of those things that feels more complicated than it needs to be.
You’ve probably wondered:
- Do I actually need it?
- How often should I use it?
- Which one should I buy?
The simple answer is:
👉 Most houseplants don’t need constant feeding
👉 But the right fertiliser, used properly, can make a noticeable difference
🧠 What fertiliser actually does
Over time, your plant uses up the nutrients in its soil.
Even if everything else is right:
- good light
- consistent watering
👉 growth can slow down once those nutrients are gone
Fertiliser helps by:
- replacing lost nutrients
- supporting new leaves and healthy growth
If your plant looks fine but isn’t growing much, this might be part of the reason.
👉 Related:
🌿 Do you always need fertiliser?
Not necessarily.
If you’ve:
- recently repotted your plant
- refreshed the soil
👉 your plant already has nutrients to work with
In that case, fertiliser isn’t urgent.
👉 Start here if you’re unsure:
💧 When should you fertilise houseplants?
This is where timing matters more than frequency.
🌸 Spring and summer (growing season)
This is when plants are actively growing.
👉 Feed every 2–4 weeks
👉 Use a diluted liquid fertiliser
🍂 Autumn and winter
Most houseplants slow down or pause growth.
👉 You usually don’t need to fertilise at all
👉 Feeding during this time can stress the plant
🪴 The best fertiliser for houseplants (simple options)
You don’t need anything complicated.
🌿 1. Liquid fertiliser (best for beginners)
This is the easiest and most reliable option.
- mix with water
- easy to control
- works for most plants
I recommend this one.
🌱 2. Slow-release fertiliser
- added directly to soil
- releases nutrients gradually
👉 Lower effort, but less flexible
👉 Option: slow release fertiliser pellets
🌿 3. Specialised fertilisers
These are made for specific plants like:
• orchids
• succulents
👉 Not essential for most beginners
👉 Related:
⚠️ The biggest fertiliser mistake
Overfeeding.
It’s very easy to assume:
👉 more fertiliser = faster growth
But in reality, too much can cause:
- brown tips
- leaf damage
- root stress
🌿 How to fertilise houseplants properly
Keep it simple:
- dilute the fertiliser according to instructions
- water your plant as normal
- apply fertiliser to slightly damp soil (not bone dry)
👉 That’s all you need to do
🧠 Signs your plant might need fertiliser
You might notice:
- slow or no growth
- smaller new leaves
- slightly pale colour
But before adding fertiliser, always check:
- light levels
- watering habits
- soil condition
👉 Because fertiliser won’t fix those problems
Try my previous blog posts for pointers:
🌱 A simple routine that works
If you want to keep things easy:
- spring/summer → feed lightly every few weeks
- autumn/winter → pause feeding
- refresh soil once a year
👉 No strict schedules needed
🌿 Final thought
Fertiliser isn’t essential for keeping plants alive.
But used simply and at the right time…
👉 it helps your plants grow stronger, healthier, and more consistently
And that’s usually all you need.