Sydney's Local Hardware Store Since 1923

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Garden growing products including Seasol fertiliser, potting mix, seaweed concentrate, plant food, bamboo stakes and plant ties for Australian gardens at Double Bay Hardware

Grow

(33 products)

Double Bay Hardware stocks a comprehensive range of garden growing products from trusted brands including Seasol, Osmocote, Yates, Multicrop, and Brunnings. Whether you're feeding a vegetable patch, conditioning native garden soil, or supporting potted plants and orchids, our range covers the essential nutrients, soil improvers, and plant supports for healthy growth in Australian gardens.

 

Categories Include

  • Fertilisers & Plant Food – Liquid and granular fertilisers including Seasol, Nitrosol, lawn food, orchid food, and general-purpose plant food for vegetables, flowers, and lawns
  • Seaweed & Soil Conditioners – Seaweed concentrate and organic soil conditioners to improve soil structure, promote root development, and boost plant resilience
  • Potting Mix & Growing Media – Premium potting mixes suitable for indoor plants, vegetables, natives, and orchids
  • pH Testing & Moisture Meters – Soil pH test kits and moisture testers to monitor growing conditions and optimise plant health
  • Plant Stakes & Supports – Bamboo stakes in a range of heights for supporting seedlings, climbing plants, and vegetables
  • Plant Ties & Clips – Soft plant ties, flex ties, jute twine, and plant clips for training and securing plants without damaging stems

All products are suitable for Australian soil conditions and climate. Our team can help you select the right fertiliser, soil conditioner, or plant support for your garden.

Frequently Asked Questions

What fertilisers do you stock?

We stock a range of liquid and granular fertilisers including Seasol, Nitrosol, lawn food, orchid food, and general-purpose plant food suitable for vegetables, flowers, natives, and lawns.

What is the difference between Seasol and a standard fertiliser?

Seasol is a seaweed-based soil conditioner and plant tonic that improves root development, soil health, and plant resilience — it is not a fertiliser. Standard fertilisers like Nitrosol provide nitrogen, phosphorus, and potassium to directly feed and promote plant growth. Both can be used together for best results.

Do you stock potting mix for specific plant types?

Yes. We stock premium potting mixes formulated for general use, indoor plants, native plants, vegetables, and orchids. Using the right potting mix for your plant type improves drainage, aeration, and nutrient availability.

How do I test my soil pH?

We stock soil pH test kits that allow you to test your garden soil at home. Most vegetables and flowers prefer a slightly acidic to neutral pH (6.0–7.0). If your soil is too acidic or alkaline, you can adjust it with lime (to raise pH) or sulphur (to lower pH).

What plant ties and supports do you stock?

We stock bamboo stakes in a range of heights, soft plant ties, flex ties, jute twine, and plant clips for training and supporting seedlings, climbing plants, tomatoes, and other vegetables without damaging stems.

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Let customers speak for us

from 1240 reviews
Anonymous
I was thrilled to finda pedometer so close to

I was thrilled to find a pedometer so close to home! And to have double bay hardware deliver it to me 2 days later! Thank you very much.

Mini Portable Pedometer LCD Step Counter
Mini Portable Pedometer LCD Step Counter
Anonymous
DBH Delivered

Order, delivery and notifications were good.

RAVEN Rubber Window Squeegee 400mm H225
RAVEN Rubber Window Squeegee 400mm H225
LG
Exactly what I needed, fast and safe shipping

Exactly what I needed, fast and safe shipping.

OSRAM DULUX D/E Compact Fluorescent Light Bulb G24q-2 18W/840
OSRAM DULUX D/E Compact Fluorescent Light Bulb G24q-2 18W/840
sailing0530 hotmail
so

so good

SANSAI Night Light Replacement Light Bulb E12 240V 7W GL-AE1207
SANSAI Night Light Replacement Light Bulb E12 240V 7W GL-AE1207
Sue Morey

i have used it for many years

Antiquax Original Wax Polish Aerosol 250ml ANTQWA
Antiquax Original Wax Polish Aerosol 250ml ANTQWA
Evelin Hegyesi
Goldair 1200W radiant heater

This is an excellent heater. It’s practical, lightweight, easy to use and gives instant warmth as well as being affordable. The level of heat can be adjusted to one, two or all three bars. I highly recommended it. Fan from Double Bay Hardware was incredibly helpful and accomodating. Wonderful customer service. Cheers, Evelin.

Goldair 1200W 3 Bar Radiant Heater GIR180
Goldair 1200W 3 Bar Radiant Heater GIR180
Jody

Have only used 1, the other is spare as it is difficult to find these globes & the other one will probably blow any day now as they are connected to the same switch. Works as expected.

OSRAM Smartlux T5 Fluorescent Tube 21W/840 SL 850mm
OSRAM Smartlux T5 Fluorescent Tube 21W/840 SL 850mm
Peter Davis
Hard to Get Part

These tubes are hard to find. Double bay had them in stock and despatched quickly. Item was as decribed and fitted and worked fine.

nls T5 Circular Fluorescent G10q 240V 55W/865 296mm
nls T5 Circular Fluorescent G10q 240V 55W/865 296mm
Arthur Carr
SIGHT

DELIVERY ON TIME, CAREFULL ATTENTION GIVEN TO PACKAGEING!

Philips PL-S 2Pins Compact Fluorescent Light Bulb G23 11W/840/2P
Philips PL-S 2Pins Compact Fluorescent Light Bulb G23 11W/840/2P
James
Very Handy Lightweight Rails

These rails are great for camper vans or light duties. Can handle a towel with no problems. Easy to install and nice and sturdy. Delivered fast too.

L T Williams Towel Rail Chrome Plated Steel 38cm 1242
L T Williams Towel Rail Chrome Plated Steel 38cm 1242
Yvonne Davies
Great bags

Fits kitchen bin well and drawstrings allow rubbish to be well contained.

Household Kitchen Tidy Bags With Draw-Tape Small 12L 45x54cm 25Pcs
Household Kitchen Tidy Bags With Draw-Tape Small 12L 45x54cm 25Pcs
Kerry Hawking
Prompt and efficient service

Great Service

Philips Double Ended Tubular Strip Light S15 60W Clear 284mm
Philips Double Ended Tubular Strip Light S15 60W Clear 284mm
Suzi
Silver polish cloth

Helpful cloth to keep your silverware from oxidising too much.

Goddards Long Term Silver Polish Cloth
Goddards Long Term Silver Polish Cloth
Mic Millist

I ordered two small light bulbs on line as nobody seemed to stock the ones I needed..
They arrived in a day!
It is so gratifying to find a hardware store that genuinely cares about its customers.
I am also glad to see so many positive reviews.
I live in Crows Nest but I will now make a trip to Double Bay just to check these guys out.
I noticed a review by a customer saying that the prices are too high and to go to Rose Bay Bunnings.
O.K. go to Bunnings and try and get some really knowledgeable advice.
Chances are YOU WON'T!
I would rather deal with genuine people in this world who KNOW what they are talking about and that goes for ALL businesses..

Double Bay Hardware
marie pepper
EXCELLENT

I AM OVER JOYED WITH THIS PORDUCT IT IS OUTSTANDING AN MEETS MY EVERY NEED = I WILL DEFINATLY PURCHASE FROM THIS SELLER AGAIN WHEN THE NEED ARISES === T HANK YOU

PHILIPS PAR38E Infrared Light Bulb for Healthcare E27 230V 150W
PHILIPS PAR38E Infrared Light Bulb for Healthcare E27 230V 150W

What customers think about the store

Double Bay Hardware excels in stocking hard-to-find specialty items, particularly light bulbs and cleaning products. Customers appreciate fast delivery, helpful staff, and knowledgeable service. The store successfully fills niche market needs with quality prod...

AI-generated from customer reviews.

Bulbs Delivery Product Service
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