Scotts Osmocote® Plus Organics Roses, Gardenias & Azaleas Plant Food & Soil Improver

A plant food and soil improver designed for Roses, Gardenias, Azaleas and other plants loving an acid soil which combines the best of both worlds. Scotts Osmocote® Plus Organics nurtures plant growth both above and below the ground and by creating a balanced and sustainable growing environment, plants are healthier, stronger and less susceptible to insect attacks and diseases, season after season.

  • No dig, long term solution for plant and soil health
  • Feeding the soil is key to having a great garden
  • Blends a full complement of quality organic fertilisers and soil conditioners with regular Scotts Osmocote®
  • Feeds continuously for 6 months
  • Specially formulated for plants that love an acid soil (pH under 7)
  • Organic matter rejuvenates the soil and encourages beneficial microbial and earthworm activity that improves soil structure
  • Active micro-organisms reduce the incidence of soil-borne diseases and assist in nutrient uptake by plants.
  • Includes a wetting agent that helps water and nutrients soak in to the soil

High iron and magnesium

Boosted levels of these two important elements help prevent the common leaf yellowing sometimes seen on these plants.


Breaks down clay soils and provides plants with the calcium they need to strengthen their structure.
Gypsum also boosts disease resistance

Organic fertilisers

The natural fertilisers blood & bone and composted manure boost growth and plant health and improve soil texture and moisture holding

Boosted potassium

Fish extract is a natural source of nitrogen, potassium and trace elements

Soil conditioner

Seaweed is a natural soil and plant conditioner and tonic that improves resistance to stress and trauma and helps plants recover faster

Sustainable & environment friendly

Scotts Osmocote® uses advanced prill technology that ensures even and controlled nutrient release with no wastage.
The organics are all derived from renewable resources


1.5kg and 3.5kg tubs

Suitable for

Designed specifically for roses, gardenias, azaleas, camellias, rhododendrons and other acid lovers

Can be used on most small shrubs and some natives apart from those preferring an alkaline soil

Flowering and leafy potted plants, including indoor plants

Safe to use on new plants - the controlled release of nutrients means it will not burn soft leaves or tender young roots

Not suitable for

Do not use in hydroponic growing systems, ponds or pots submerged in water

Do not use on lawns - use only specifically named fertilisers on grassed areas

How it works

This plant food and soil improver nurtures plant growth both above and below the ground - it feeds both the soil and the plant. It includes:

  • Original Scotts Osmocote® controlled release fertiliser granules that release nutrients when plants need them most for up to 6 months. It works in harmony with nature to give your plants the nutrients they need, just when they need them. Less in Winter and more in active growing periods
  • Added organic matter such as composted manure, blood and bone, seaweed and fish that organically enrich the soil and encourage beneficial microbial and earthworm activity
  • Natural gypsum, a clay breaker that improves the soil and adds calcium
  • An excellent wetting agent that enhances water absorption into the soil and helps plants take up more nutrients

As a result, plants are healthier and less susceptible to insect attacks and disease

How to use

The measuring scoop in the tub = 55grams = 3 tablespoons (TBL). Use the table below as a guide to how much to use

Where to apply


(flat level scoops)            

How to apply at planting Established plants
Roses & small-medium flowering shrubs 2 scoops per m2          
Mix into the backfill soil. Do not place in the bottom
of the planting hole
Dig in around the dripline
Potted plants 30cm pot - ¾ scoop
40cm pot - 1½ scoops
60cm pot - 2 scoops
90cm pot - 3 scoops
Mix through the potting mix

Apply evenly over the surface
of the potting mix or mix through when repotting


IMPORTANT: Water in thoroughly after each application and ensure the product is washed off leaves.

For a complete guide on how to use Scotts Osmocote® Plus Organics Roses, Gardenias & Azaleas, watch the video on this page and always check the packaging.

When to use

  • Apply every six months
  • For best results, apply in the early Spring when new growth appears, and repeat in late Summer or early Autumn

Safety Information

CAUTION: This product may cause staining of hard surfaces if wet. Avoid contact with hard surfaces and if contact does occur, sweep off immediately.

Technical details

  • NPK 12.2 : 2.2 : 3.4
  • Contains added organic materials, natural gypsum, wetting agent and a range of essential trace elements
  • Contains 2.2% phosphorus, which is acceptable for some native plants but not all. Check the plant label to see how tolerant your plant may be.
  • May be safely used on edibles
  • Scotts Osmocote® is a controlled release fertiliser that consists of prills (small beads) of high quality fertiliser encased in a permeable and biodegradable soy extract coating
  • Each prill contains a balanced micro dose of nutrients so a plant's response from an application is reliable and consistent

Where to buy it

Decided what product best suits your needs? Or would you prefer to go in-store to ask for more information?

Visit your local Bunnings Warehouse for our largest range.

You can also find Scotts products in a number of gardening, hardware, independent and supermarket retailers including Flower Power, Mitre10, Coles and Woolworths.

Note: Not all brands and products are stocked in all stores. For any additional questions please visit our contact us page.

In New Zealand, go to your local Bunnings warehouse

Tips, tricks & advice

Understanding fertilisers

Understanding fertilisers is easy with this simple guide

Read more

Healthy Soil = Healthy Plants

When it comes to gardening, the plants you grow will only be as good as the soils in which they are growing.  Poor soil quality results in under-nourished struggling plants.

Read more

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