What Does "Give It a Good Feed" Actually Mean? A Simple Guide to Feeding Garden Plants

If you've spent any time reading gardening books, browsing plant labels or asking for advice online, you've probably come across the phrase:

"Give it a good feed."

It sounds simple enough.

But what does it actually mean?

Do you use more fertiliser?

Do you make the solution stronger?

Do you feed more often?

How much is too much?

Over the years, I've realised that plant feeding is one of those gardening subjects that many people quietly find confusing. Yet it's often talked about as though everyone instinctively understands it.

The truth is, feeding plants isn't complicated once you understand a few basic principles.

So let's unravel what gardeners actually mean when they suggest giving a plant "a good feed."

What Is Plant Food?

Plants make most of their own food through photosynthesis, using sunlight, water and carbon dioxide.

However, they also require essential nutrients from the soil to grow properly.

The three main nutrients you'll see listed on fertiliser packets are:

Nitrogen (N)

Nitrogen promotes leafy green growth.

It helps plants produce healthy stems and foliage.

Too much nitrogen can result in lots of leaves but fewer flowers.

Phosphorus (P)

Phosphorus supports root development, flowering and fruit production.

It's particularly important for young plants establishing roots and flowering plants producing blooms.

Potassium (K)

Potassium contributes to overall plant health.

It improves disease resistance, supports flowering and fruit quality, and helps plants cope with stress.

This combination is often shown as an NPK ratio on fertiliser packaging.

For example:

10-10-10 means equal amounts of all three nutrients.

Tomato feed often has a higher potassium content to encourage flowers and fruits.

So What Does "Give It a Good Feed" Mean?

In most cases, gardeners mean:

Apply the recommended amount of fertiliser at the correct strength and time of year to support healthy growth.

Importantly, it does not mean:

• Using double the recommended strength

• Applying fertiliser every few days

• Assuming more feed equals better plants

Plants are surprisingly similar to people.

Too little food leads to poor growth.

Too much can cause problems.

Balance is usually the key.

Should I Make Liquid Feed Stronger?

This is probably one of the most common misconceptions.

The answer is usually:

No.

Always follow the dilution instructions on the product label.

Manufacturers spend considerable time determining appropriate concentrations.

Making a liquid fertiliser stronger can:

• Damage roots

• Scorch foliage

• Lead to excessive soft growth

• Cause nutrient imbalances

When gardeners suggest "giving it a good feed," they generally mean feeding regularly according to the instructions, not increasing concentration.

Which Plants Need Feeding?

Not every plant has the same nutritional requirements.

Hungry Plants

These plants benefit from regular feeding:

• Roses

• Dahlias

• Tomatoes

• Cucumbers

• Hanging baskets

• Containers and pots

• Annual bedding plants

• Sweet peas

These plants either flower heavily, fruit extensively or grow rapidly.

Moderate Feeders

Many shrubs and perennials require less attention:

• Hardy geraniums

• Lavender

• Peonies

• Hydrangeas

• Herbaceous perennials

A spring mulch or occasional balanced feed is often sufficient.

Plants That Prefer Lean Conditions

Some plants actually perform poorly if overfed:

• Mediterranean herbs

• Lavender

• Many alpines

• Wildflowers

Excess feeding can lead to floppy growth and reduced flowering.

Why Containers Need More Feeding

One area where feeding becomes particularly important is containers.

Plants growing in pots have access to only a limited amount of compost.

Once nutrients are used up, there is nowhere else for roots to find them.

This is why hanging baskets often need weekly feeding during summer.

Garden plants growing in borders can explore a much larger volume of soil.

Organic Versus Chemical Fertilisers

This is an area where gardeners often have strong opinions.

Organic Feeds

Examples include:

• Well-rotted manure

• Garden compost

• Blood, fish and bone

• Seaweed products

Advantages:

• Improve soil structure

• Release nutrients gradually

• Support soil biology

Disadvantages:

• Slower acting

• Nutrient levels can vary

Synthetic Fertilisers

Examples include:

• Granular fertilisers

• Soluble feeds

• Specific plant feeds

Advantages:

• Fast acting

• Precise nutrient ratios

• Easy to measure

Disadvantages:

• Do not improve soil structure

• Easier to overapply

In reality, many gardeners successfully use a combination of both approaches.

Signs Your Plants Might Need Feeding

Plants sometimes tell us when they're struggling.

Possible signs include:

• Pale or yellowing leaves

• Poor flowering

• Slow growth

• Small leaves

• Weak stems

• Reduced fruit production

However, these symptoms can also indicate watering problems, pests or diseases.

Fertiliser isn't always the answer.

Can You Overfeed Plants?

Absolutely.

In fact, overfeeding is often more problematic than underfeeding.

Too much fertiliser can cause:

• Root damage

• Excessive leafy growth

• Poor flowering

• Increased susceptibility to pests

• Fertiliser scorch

• Nutrient imbalances

More is rarely better.

Feeding Through the Seasons

Spring

The main feeding period.

Plants begin active growth and benefit from additional nutrients.

Summer

Continue feeding hungry plants and containers regularly.

Monitor watering closely during hot weather.

Autumn

Reduce feeding as growth slows.

High nitrogen feeds are generally avoided.

Winter

Most outdoor plants require little or no feeding.

Focus instead on improving soil with compost or organic matter.

The Most Important Rule

After more than twenty years of gardening, I've found that feeding is often simpler than many people imagine.

The most important rule is this:

Feed the right plant, with the right product, at the right time and at the recommended rate.

Not every plant needs constant feeding.

Not every problem requires fertiliser.

And "giving it a good feed" doesn't mean emptying half the packet around the plant.

It simply means providing the nutrients a plant needs to thrive.

Gardening is rarely about doing more.

It's usually about doing the right thing at the right time.

Professional Garden Maintenance in Cheltenham

If you'd like help understanding your garden's needs, improving plant health or maintaining your borders throughout the seasons, Marcus Bergin Gardening provides professional garden maintenance services throughout Cheltenham, Bishops Cleeve, Prestbury, Winchcombe, Gotherington, Charlton Kings and the surrounding Gloucestershire villages.

For advice or to arrange a visit, please get in touch.