Skip to content
  • 💸 Save big on your favorite styles🛍️ 20% off all purchases 💰
  • 💸 Save big on your favorite styles🛍️ 20% off all purchases 💰
Garden Supply StoreGarden Supply Store
  • Menu
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Garden Centre Essentials
    • Charles Taylor Wooden Garden Furniture
    • Watering
    • Planters & Hanging Baskets
    • Plant Protection & Propagation
    • Christmas Decorations
    • Solar Lighting
    • Solar Water Features
    • Pest, Disease & Weed Control
    • Lawn Care Products
  • Grow Lights
    • Complete Grow Light Systems
    • LED Grow Lights
    • Grow Lamps
    • Reflectors
    • Timers & Controllers
    • Digital Ballasts
  • Fans – Filters & Environment
    • Heat & Humidity Control
    • Fan Controllers
    • Extractor Fans
    • Full Climate Control
    • Carbon Filters
    • Ducting & Accessories
    • Air Movement Fans
    • CO2 Enrichment
    • Air Fresheners and Odour Control
  • Grow Tents & Sheeting
    • Grow Tents
    • Reflective Sheeting
    • Grow Tent Accessories
  • Growing Systems
    • Drip Irrigation
    • Irrigation Pumps
    • Aeroponic Systems
Home / Garden Centre Essentials / Pest, Disease & Weed Control
  • Smart Garden Classic Majestic Stainless Steel Super Bright Solar LED Stake Light 5 Pack -Garden Supply Store smart garden classic majestic stainless steel super bright solar led stake light 5 pack 02
  • EarlyGrow Medium Electric Heated PVC Propagation Mat -Garden Supply Store earlygrow medium pvc heated mat 01 800x800
-30%
Roundup Lawn Ultra
Roundup Lawn Ultra - Image 2
Roundup Lawn Ultra - Image 3
Roundup Lawn Ultra -Garden Supply Store 119939 roundup rounduplawnweedkiller 5010272189490 1 1
Roundup Lawn Ultra -Garden Supply Store 119941 roundup rounduplawnweedkiller 5010272189551 4

Roundup Lawn Ultra

$19.99 Original price was: $19.99.$13.99Current price is: $13.99.

Buy Now
SKU: Roundup_Lawn_Ultra Categories: Garden Centre Essentials, Pest, Disease & Weed Control
  • Secure Shopping with Safe Payments
  • 100% High-Quality Guarantee
  • Quick responses, top-notch service.
  • Best price, safe shopping guarantee
Browse
  • Fans - Filters & Environment
    • Air Fresheners and Odour Control
    • Air Movement Fans
    • Carbon Filters
    • CO2 Enrichment
    • Ducting & Accessories
    • Extractor Fans
    • Fan Controllers
    • Full Climate Control
    • Heat & Humidity Control
  • Garden Centre Essentials
    • Charles Taylor Wooden Garden Furniture
    • Christmas Decorations
    • Lawn Care Products
    • Pest, Disease & Weed Control
    • Plant Protection & Propagation
    • Planters & Hanging Baskets
    • Solar Lighting
    • Solar Water Features
    • Watering
  • Grow Lights
    • Complete Grow Light Systems
    • Digital Ballasts
    • Grow Lamps
    • LED Grow Lights
    • Reflectors
    • Timers & Controllers
  • Grow Tents & Sheeting
    • Grow Tent Accessories
    • Grow Tents
    • Reflective Sheeting
  • Growing Systems
    • Aeroponic Systems
    • Drip Irrigation
    • Irrigation Pumps
  • Description
  • Reviews (0)

What Is Roundup Lawn Ultra?

Roundup® Lawn Ultra is a selective weed killer that helps you control most common broad-leaved lawn weeds, without harming the grass. This ready-to-use formula is suited for anyone wishing to use a glyphosate-free lawn care product. Created to be used on established lawns.

Do I Need Lawncare?

Lawncare is a matter of pride. A beautiful lawn can bring you calmness and happiness. Sitting outside, relaxing with a coffee and newspaper feels better when you’re looking over a thick, verdant, healthy looking lawn.

Unsightly weeds compete with your grass for light, moisture and food. They spread out in large ugly patches, acting to smother grass and kill it off. Put simply, your lawn looks better without weeds.

Use Roundup Lawn Ultra to selectively target and control weeds, such as:

  • Clover
  • Daisy
  • Dandelion
  • Plantain
  • Common Chickweed

When Do I Use Roundup Lawn Ultra?

Use between April to September, when the grass is actively growing. Repeat treatments may be required for well established and/or difficult to control weeds.

For the best results:

  • Do not use on newly-sown lawns for at least six months after they’re established
  • Do not cut the grass for at least one day
  • Avoid use during times of frost or drought
  • Avoid using in windy conditions
  • Allow at least 6 weeks between treatments
  • Use a maximum of twice per year

How Do I Use Roundup Lawn Ultra?

Use waterproof gloves and footwear to apply this product.

Using Roundup Lawn Ultra is simple, the liquid formula is easy to apply directly to weeds.

Before you use this product:

  • Follow the assembly instructions on the products rear label
  • Shake well before use

How Do I Treat Weeds with Roundup Lawn Ultra?

To treat lawn weeds:

  • Rotate the nozzle to “spray” or “stream”
  • Hold the spray nozzle approximately 50 cm away from the target weed
  • Lightly dampen the foliage and avoid creating run off
  • Rotate the nozzle to “OFF” and store the sprayer
  • Wash hands immediately after use
  • Post Weed Killer Treatment Lawn Aftercare

    When you do decide to use a selective weed killer to control your lawn weeds, you’ll probably be left with bare patches. To repair these bare patches, you’ll need a patch-up lawn care product, like Miracle-Gro Patch Magic. Patching up will regrow your lawn to it’s former beauty.

    Repairing Pet Urine Brown Spots In Your Lawn

    Use Miracle-Gro Patch Magic Dog Spot Repair to fix any brown patches from where your pets regularly go to wee. The special formula contains a coir, seeds and added gypsum. Left untreated, high-levels of nitrogen in pet urine kills grass, leaving unsightly brown patches, and stops any newly introduced seeds from taking hold. The coir is perfect for the seeds to germinate in and the added gypsum neutralises the effects of pet wee in the soil.

    Safety Warning and Environmental Information

    Keep out of reach of children and pets. Always read instructions before use. Wash splashes off skin immediately. Keep off skin. Do not breathe spray. Wash hands and exposed skin after use. Keep pets and children off treated areas until it dries off. Only for outside use.

    Contains: fluroxypyr, clopyralid and MCPA.

    Only use on established lawns.

    Never use where the product could get on food or in drinks or animal feed/water.

    Use plant protection products safely. Always read the label and product information before use.

    • Kills weeds, not lawns
    • Glyphosate-free lawn care product
    • For established lawns of at least 6 months
    • Quick to assemble, easy-to-use

    Reviews

    There are no reviews yet.

    Be the first to review “Roundup Lawn Ultra” Cancel reply

    Related products

    -55%
    Charles Taylor Aidendack Style Chair
    Quick View

    Charles Taylor Aidendack Style Chair

    $219.95 Original price was: $219.95.$99.99Current price is: $99.99.
    -30%
    Gro-Sure Electric Heated Propagation Mat
    Quick View

    Gro-Sure Electric Heated Propagation Mat

    $23.20 Original price was: $23.20.$16.24Current price is: $16.24.
    -30%
    Premier Decorations 1.2m White Glitter Willow Tree - 140 LED Warm White
    Quick View

    Premier Decorations 1.2m White Glitter Willow Tree – 140 LED Warm White

    $69.95 Original price was: $69.95.$48.97Current price is: $48.97.
    -30%
    Grow It Wooden Cold Frame
    Quick View

    Grow It Wooden Cold Frame

    $55.95 Original price was: $55.95.$39.17Current price is: $39.17.
    -30%
    Smart Garden Genoa Cascade Fountain Solar Water Feature
    Quick View

    Smart Garden Genoa Cascade Fountain Solar Water Feature

    $85.72 Original price was: $85.72.$60.00Current price is: $60.00.
    -30%
    Hozelock Multi Spray Watering Hose Pro Gun
    Quick View

    Hozelock Multi Spray Watering Hose Pro Gun

    $26.40 Original price was: $26.40.$18.48Current price is: $18.48.
    -68%
    Charles Taylor Twin Companion Dining Set Straight
    Quick View

    Charles Taylor Twin Companion Dining Set Straight

    $310.95 Original price was: $310.95.$97.99Current price is: $97.99.
    -30%
    Gardman Weedstop Ultimate - Weed Control Fabric
    Quick View

    Gardman Weedstop Ultimate – Weed Control Fabric

    $12.00 Original price was: $12.00.$8.40Current price is: $8.40.
    MY ACCOUNT
    • Cart
    • Checkout
    • My account
    • Wishlist
    ABOUT US
    • About Us
    • FAQ
    • Returns & Exchanges
    • Delivery
    • Contact Us
    LEGAL
    • Privacy Policy
    • Payment Method
    • Shipping & Returns
    • Term and Conditions
    Signup for Newsletter

    Sign up for exclusive offers, original stories, events and more.

      Copyright 2025 © www.gardenessentialsshop.com
      • Garden Centre Essentials
        • Charles Taylor Wooden Garden Furniture
        • Watering
        • Planters & Hanging Baskets
        • Plant Protection & Propagation
        • Christmas Decorations
        • Solar Lighting
        • Solar Water Features
        • Pest, Disease & Weed Control
        • Lawn Care Products
      • Grow Lights
        • Complete Grow Light Systems
        • LED Grow Lights
        • Grow Lamps
        • Reflectors
        • Timers & Controllers
        • Digital Ballasts
      • Fans – Filters & Environment
        • Heat & Humidity Control
        • Fan Controllers
        • Extractor Fans
        • Full Climate Control
        • Carbon Filters
        • Ducting & Accessories
        • Air Movement Fans
        • CO2 Enrichment
        • Air Fresheners and Odour Control
      • Grow Tents & Sheeting
        • Grow Tents
        • Reflective Sheeting
        • Grow Tent Accessories
      • Growing Systems
        • Drip Irrigation
        • Irrigation Pumps
        • Aeroponic Systems
      • Login

      Login

      Lost your password?

      Register

      Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.