Native gardening in Ku-ring-gai

Welcome to your online guide to creating a thriving, colourful, bio-diverse native garden based on your soil type.

Start here

  • Enter your address into the map below
  • Double click on the property highlighted on the map to find out your soil type
  • Move onto the guide below to find a planting guide for your soil type

What can I plant for my soil type?

Discover some ideas for planting in your neighbourhood.

Grow native plant guide for heavy soil 

Grow native plant guide for light soil

Step-by-step guide

Build your garden with confidence: assess your site, choose the right plants and care for your garden through the seasons.

1. Site assessment

Before you plant, take a close look at your garden site. Your local conditions will help you decide which plants will grow best.

What to observe:

  • Sunlight: Do you get full sun, part shade or full shade? Morning or afternoon sun? Winter sun?
  • Water access: Will the garden be watered? Is irrigation available?
  • Soil type: Click here to enter your address and find your soil type. Does it need improving?
  • Drainage: Does water soak in well or pool on the surface?
  • Existing plants: What’s already growing well? Will it compete or complement new plantings?

Tip: Choose native plants that naturally thrive in your local environment for the best results with less effort.

2. Understanding soils

Click here to enter your address and find your soil type.

Healthy soil helps your plants grow strong. Sydney has mostly sandy or clayey soils.

Soil basics

  • Structure: Clay will crumble like cookie crumbs. Sandy soils may need structure support.
  • Depth: Ideal topsoil is ~300mm deep. Check by digging and noting colour and digging difficulty.
  • pH Level: Most plants prefer a pH of 6.5. Use a home test kit from a nursery or hardware store to check yours.

3. Soil improvement

You can’t easily change soil texture, but you can improve it by adding organic matter (OM) such as compost, aged manure or conditioners.

Benefits of organic matter

  • Improves structure and drainage
  • Holds water and nutrients better
  • Feeds soil microbes and plants

Common soil issues and fixes

Issue

Solution

Low pH

Add lime

High pH

Add sulphur or iron sulphate

Poor drainage

Add OM or install drainage

Compaction

Add OM, cultivate, and use gypsum (for clay)

Water repellent

Use a wetting agent

Shallow topsoil

Add garden soil and mound around plants

Nutrient deficiency

Adjust pH, use targeted fertilisers (e.g. iron chelates, Epsom salts)

4. Choosing plants

Now it’s time to plan your garden design!

Visit our soil type pages for recommended species.

Grow natives for heavy soil

Grow natives for light soil

Design tips

  • Layer plants: Tall at the back, mid-size at eye level, small/groundcover in front
  • Add variety: Mix shapes, textures and colours
  • Match your style: Many natives blend well with exotic plants
  • Start simple: Begin with easy natives and add others over time

Bird and bee garden

  • Bottlebrush, Hairpin Banksia, Golden Wattle, Silky Hakea

Cut flower garden

  • Flannel Flower, Rice Flower, NSW Christmas Bush

Exotic/native mix

  • Flax Wattle, Hop Goodenia, Blueberry Ash

Potted native garden

  • Ivy Goodenia, Wild Geranium, Rasp Fern

Shady garden

Flax Lily, Birds Nest Fern, Native Fuchsia, Australian Indigo

Shopping at the nursery

Nursery stock changes with the seasons—especially when plants are in bloom.

Always check for:

  • Healthy leaves and stems
  • Strong roots (gently remove from pot to inspect)
  • Avoid circling or kinked roots—these may struggle to grow.

5. Using fertilisers

Most native plants thrive in low-nutrient soils, but fertilisers can help.

When to use

  • To help new plants establish
  • To boost flowering or foliage growth
  • To fix nutrient deficiencies
  • For potted plants (potting mix needs extra nutrients)

⚠️ Caution: Many natives (especially Banksias, Grevilleas and Correas) are sensitive to high phosphorus. Avoid fertilisers with P > 4%.

Fertiliser types

Type

Description

Examples

Organic

Made from natural materials

Seasol®, Dynamic Lifter®

Organic-based

Organic + added nutrients

Powerfeed®

Inorganic

Synthetic and targeted

Osmocote®

Application methods

  • Liquid: Quick fix for pots and small areas
  • Slow-release granules: Great for larger gardens; apply 2–3x/year
  • Controlled-release: Good for planting holes and pots; lasts 3–12 months

6. Planting

Best times to plant: autumn (ideal) or spring (also great).

Planting steps

  1. Pre-water your plant while still in the pot
  2. Dig a hole as deep as the root ball, and twice as wide
  3. Prepare roots: Loosen or trim if circling
  4. Place and backfill: Don’t bury the top of the root ball
  5. Water in well

7. Aftercare

Watering guide

Until plants are established (self-sufficient), water them regularly. During hot weather (rainfall < 5mm), follow this guide every 2–3 days:

  • 140mm pot = 1.5L
  • 200mm pot = 4.5L
  • 300mm pot = 13.5L

Mulching tips

Mulch keeps roots cool, holds moisture and reduces weeds.

Benefits

  • Suppresses weeds
  • Retains moisture
  • Regulates soil temperature
  • Feeds soil as it breaks down
  • Looks great!

Mulch types

  • Organic: Bark chips, leaf litter – perfect for native gardens
  • Living mulch: Groundcovers like Kidney Weed or Native Violet
  • Inorganic: Gravel or pebbles for low maintenance

✅ Keep mulch away from stems to prevent rot.

Gardening on fire-prone land

In a serious bushfire, almost any plant can become fuel — there’s really no such thing as a truly fire-resistant garden. But with smart design and ongoing maintenance, you can reduce the risk to your home and garden.

The way you arrange plants matters more than the specific plants you choose. Aim to create separation between fine fuels like leaves, twigs, and bark. These light, flammable materials ignite easily and help fires move fast. Keep shrubs spaced well apart. Prune anything that might act as a “fuel ladder”, such as high growth on shrubs or low-hanging tree branches that allow fire to climb into taller vegetation.

Using non-flammable materials like pavers, gravel, or lawn between planting zones helps break up fuel loads. Opt for gravel or groundcovers instead of woodchip or straw mulch in garden beds. Keep areas near your house especially clear — remove all dead plant material and don’t allow plants to grow under decks, against walls, near windows, or overhanging the roof. 

When choosing plants, look for those with open branching, smooth bark, large fleshy leaves, and little to no strong aroma. Avoid species that retain dry or dead material, and steer clear of vines altogether. The Victorian Country Fire Authority’s interactive plant selection key is a helpful guide. 

Regular maintenance through the fire season is key — remove fallen leaves and dead growth often. Keep your garden and lawns well-watered (visit  Water Smart page for information on water tank rebates).

Stay in touch

If you would like to ask a question or talk to a member of the Environmental team, phone 9424 0000 or email bushcare@krg.nsw.gov.au