---
product_id: 47881002
title: "Fast Action Weedkiller, Ready to Use, Manual Spray, 3 Litre"
brand: "roundup"
price: "S$92"
currency: SGD
in_stock: true
reviews_count: 8
category: "Roundup"
url: https://www.desertcart.sg/products/47881002-fast-action-weedkiller-ready-to-use-manual-spray-3-litre
store_origin: SG
region: Singapore
---

# Kills roots to prevent regrowth Ready-to-use 3L manual spray Visible results in 48 hours Fast Action Weedkiller, Ready to Use, Manual Spray, 3 Litre

**Brand:** roundup
**Price:** S$92
**Availability:** ✅ In Stock

## Summary

> 🌿 Zap Weeds Fast, Live Garden-Ready Sooner!

## Quick Answers

- **What is this?** Fast Action Weedkiller, Ready to Use, Manual Spray, 3 Litre by roundup
- **How much does it cost?** S$92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/47881002-fast-action-weedkiller-ready-to-use-manual-spray-3-litre)

## Best For

- roundup enthusiasts

## Why This Product

- Trusted roundup brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Root-Level Defense:** Kills weeds down to the roots so they don’t come back to haunt your garden.
- • **Safe for Family Zones:** Once dry, treated areas are safe for kids and pets—peace of mind included.
- • **Effortless Application:** Ready-to-use spray with up to 3 minutes continuous spray time—no mixing, no mess.
- • **Fast-Track Weed Eradication:** See stubborn weeds vanish within 1-2 days—no more waiting around!
- • **Eco-Friendly & Replant Ready:** Breaks down naturally in soil within 7 days, letting you replant without delay.

## Overview

Roundup Fast Action Weedkiller is a powerful, ready-to-use 3L manual spray that delivers visible weed elimination in just 48 hours. Its advanced formula penetrates leaves to kill weeds right to the roots, preventing regrowth. Safe for use around children and pets once dry, it naturally degrades in soil within 7 days, allowing quick replanting. Ideal for all garden surfaces, it offers up to 3 minutes of continuous spray for efficient coverage, making weed control effortless and eco-conscious.

## Description

From the manufacturer hero-video Results in 48 hours Our fast acting formula means visible results in just 48 hours, working right in front of your eyes! Results in 48 hours Our fast acting formula means visible results in just 48 hours, working right in front of your eyes! Kills right to the roots Travels through the leaves straight to the root to prevent weeds from growing back or regenerating. Kills right to the roots Travels through the leaves straight to the root to prevent weeds from growing back or regenerating. Perfect for paths, drives, patios and flower beds Use all over the garden on paths, drives, patios and flowerbeds to keep them free from pesky weeds. Perfect for paths, drives, patios and flower beds Use all over the garden on paths, drives, patios and flowerbeds to keep them free from pesky weeds. Degrades naturally in soil to allow replanting Degrades naturally in soil leaving no residue, meaning you can start replanting in just 7 days. Degrades naturally in soil to allow replanting Degrades naturally in soil leaving no residue, meaning you can start replanting in just 7 days. Fast and effective weed control that gets to work within hours of application Ready to use straight from the bottle, this premixed glyphosate formula moves through weeds all the way to the roots and is naturally broken down within a week by micro-organisms in the soil, so you can get planting again. Our Pump 'N Go sprayer offers a one touch trigger system and an extendable wand - it gets you closer to weeds without bending, so you can remove weeds faster and easier than ever - 3 mins of continuous spray with the 2.5 litre pack, and 10 mins in the 5 litre pack. Why should I use ROUNDUP Fast Action Ready To Use Weedkiller? A multi-purpose weedkiller, ROUNDUP Fast Action Ready To Use Weedkiller kills annual and deep rooted perennial weeds, including grasses, dandelions, docks, nettles, ground elder, bindweed and thistles. It is inactivated on contact with soil. Why should I use ROUNDUP Fast Action Ready To Use Weedkiller? A multi-purpose weedkiller, ROUNDUP Fast Action Ready To Use Weedkiller kills annual and deep rooted perennial weeds, including grasses, dandelions, docks, nettles, ground elder, bindweed and thistles. It is inactivated on contact with soil. Where can I use ROUNDUP Fast Action Ready To Use Weedkiller? Approved for use all around the garden, on gravel areas, paths, drives and along fences. ROUNDUP Fast Action Ready to Use Weedkiller can be used to clean up weedy areas before planting vegetables, flowers, shrubs and to renovate overgrown areas. Where can I use ROUNDUP Fast Action Ready To Use Weedkiller? Approved for use all around the garden, on gravel areas, paths, drives and along fences. ROUNDUP Fast Action Ready to Use Weedkiller can be used to clean up weedy areas before planting vegetables, flowers, shrubs and to renovate overgrown areas. When should I use ROUNDUP Fast Action Ready To Use Weedkiller? Spray any time when weeds are actively growing and have adequate leaf area to absorb spray. Apply in calm conditions to avoid drift onto cultivated plants. Rain within 6 hours of spraying reduces effectiveness and repeat treatments may be necessary. When should I use ROUNDUP Fast Action Ready To Use Weedkiller? Spray any time when weeds are actively growing and have adequate leaf area to absorb spray. Apply in calm conditions to avoid drift onto cultivated plants. Rain within 6 hours of spraying reduces effectiveness and repeat treatments may be necessary. How do I use ROUNDUP Fast Action Ready To Use Weedkiller? Apply spray evenly to wet the leaves of the weeds, avoiding run-off. Leave weeds 7 days before digging or soil cultivation, for the weedkiller to move to the roots. Repeat application may be necessary, should new growth occur. How do I use ROUNDUP Fast Action Ready To Use Weedkiller? Apply spray evenly to wet the leaves of the weeds, avoiding run-off. Leave weeds 7 days before digging or soil cultivation, for the weedkiller to move to the roots. Repeat application may be necessary, should new growth occur. Is ROUNDUP Fast Action Ready To Use Weedkiller safe to use on areas used by children and pets? Keep children and pets away from treated areas until spray has dried. Keep out of the reach of children. Is ROUNDUP Fast Action Ready To Use Weedkiller safe to use on areas used by children and pets? Keep children and pets away from treated areas until spray has dried. Keep out of the reach of children. Compare our range of weed control products Fast Action Total Optima+ Conc. Speed Ultra Fast Action Path & Drive Fast Action Tough Tree Stump Killer Conc.

Review: The Best weedkiller on the market!!! - Brilliant 1st class destroys everything effectively and simple to use, yes it's a bit expensive but you can rely on this weed killer to do the job!, so for me I always buy what works.
Review: Effective weed destroyer - This product worked well,but opening it ready to use was impossible because my grip is very poor this meant that I had to seek help from a friend each time I wanted to use it!

## Features

- To avoid risks to human health and the environment, comply with the instructions for use.
- Fast action ready to use weed killer that kills the weeds and roots with visible results in 1-2 days
- Kills most garden weeds with a single application; up to 3 minutes of continuous spray when using 3 L option
- Kills the roots so weeds don't come back
- Children and pets need not be excluded from treated areas (once dry)
- Degraded in the soil by micro organisms
- Leaves no harmful residues to allow replanting within 7 days

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000TAT5WA |
| Best Sellers Rank | 1,685 in Garden ( See Top 100 in Garden ) 19 in Weed Killers |
| Customer Reviews | 4.3 4.3 out of 5 stars (8,844) |
| Date First Available | 9 July 2007 |
| Item display height | 26.1 centimetres |
| Item display length | 8.8 centimetres |
| Item display weight | 3.29 Kilograms |
| Item display width | 22 centimetres |
| Item model number | 19017 |
| Item volume | 3 Litres |
| Manufacturer | Evergreen Garden Care |
| Part number | 19017 |
| Product Dimensions | 8.8 x 22 x 26.1 cm; 3.29 kg |

## Product Details

- **Active ingredients:** Ferrous Sulphate
- **Brand:** Roundup
- **Item form:** Spray
- **Item weight:** 3.29 Kilograms
- **Liquid volume:** 3 Litres

## Images

![Fast Action Weedkiller, Ready to Use, Manual Spray, 3 Litre - Image 1](https://m.media-amazon.com/images/I/81WbbPjZU0L.jpg)

## Questions & Answers

**Q: Why should I use ROUNDUP Fast Action Ready To Use Weedkiller?**
A: A multi-purpose weedkiller, ROUNDUP Fast Action Ready To Use Weedkiller kills annual and deep rooted perennial weeds, including grasses, dandelions, docks, nettles, ground elder, bindweed and thistles. It is inactivated on contact with soil.

**Q: Where can I use ROUNDUP Fast Action Ready To Use Weedkiller?**
A: Approved for use all around the garden, on gravel areas, paths, drives and along fences. ROUNDUP Fast Action Ready to Use Weedkiller can be used to clean up weedy areas before planting vegetables, flowers, shrubs and to renovate overgrown areas.

**Q: When should I use ROUNDUP Fast Action Ready To Use Weedkiller?**
A: Spray any time when weeds are actively growing and have adequate leaf area to absorb spray. Apply in calm conditions to avoid drift onto cultivated plants. Rain within 6 hours of spraying reduces effectiveness and repeat treatments may be necessary.

**Q: How do I use ROUNDUP Fast Action Ready To Use Weedkiller?**
A: Apply spray evenly to wet the leaves of the weeds, avoiding run-off. Leave weeds 7 days before digging or soil cultivation, for the weedkiller to move to the roots. Repeat application may be necessary, should new growth occur.

**Q: Is ROUNDUP Fast Action Ready To Use Weedkiller safe to use on areas used by children and pets?**
A: Keep children and pets away from treated areas until spray has dried. Keep out of the reach of children.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Best weedkiller on the market!!!
*by W***Y on 2 December 2025*

Brilliant 1st class destroys everything effectively and simple to use, yes it's a bit expensive but you can rely on this weed killer to do the job!, so for me I always buy what works.

### ⭐⭐⭐⭐ Effective weed destroyer
*by M***. on 25 August 2025*

This product worked well,but opening it ready to use was impossible because my grip is very poor this meant that I had to seek help from a friend each time I wanted to use it!

### ⭐⭐⭐⭐⭐ Weeds no more.
*by J***V on 28 May 2025*

Easy to use and although it has an unnatural odour, it doesn’t smell bad. I accidentally sprayed some on my legs and it didn’t feel itchy afterwards. After a week of spraying the weeds, they started to wither and I haven’t seen any regrowth. Very good quality, quick result.

## Frequently Bought Together

- Roundup Fast Action Weedkiller, Ready to Use, Manual Spray, 3 Litre
- Pronto Seed Premium Grass Seed 1.4 kg - Fast Growing, Hard-Wearing - Covers 84m² for Lawns & Overseeding - DEFRA Approved & Tailored for UK Climate (1.4kg)
- Miracle-Gro 121187 EverGreen Complete 4-in-1 Spreader, Lawn Food, Weed & Moss Control, 80 m2, Yellow

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-16*