GARDENA (4029) Grass Collector Bag for Reel Mower. Review

Name: GARDENA (4029) Grass Collector Bag for Reel Mower.
Brand: Gardena
Price: 42.99 USD
Availability: InStock

By the Mowers.Cloud editorial team · How we research & rate · Updated June 2026

★★★★ 4.1/5 (1390 reviews)

$42.99

Brand: Gardena

GARDENA (4029) Grass Collector Bag for Reel Mower.

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Overview

The GARDENA (4029) Grass Collector Bag is a dedicated replacement or spare bag for GARDENA reel mowers, designed to catch clippings as you push. It’s a simple, no-nonsense accessory for homeowners who already own a GARDENA manual reel mower and want a functional, easy-to-empty collection system. This bag isn’t a mower itself—it’s a critical component for keeping your lawn tidy without raking.

Who Should Buy This

Existing GARDENA reel mower owners who need a replacement bag after the original wears out or tears. This is the primary audience—don’t buy it for a different brand.
Homeowners with small, flat lawns (under ¼ acre) who prefer manual push mowers for quiet, emission-free cutting and want to collect clippings rather than leave them on the grass.
Gardeners who value simplicity—no batteries, no gas, just a fabric bag that clips on and dumps clippings into a compost pile or yard waste bin.
Budget-conscious buyers who already own a GARDENA reel mower and want an affordable, OEM replacement rather than a third-party generic that might not fit.

Key Features Breakdown

Compatibility with GARDENA Reel Mowers: This bag is designed specifically for GARDENA manual reel mowers (models like 380, 400, 400 Comfort, and similar). It’s not universal—check your mower model before buying. The attachment clips are molded to snap onto the mower frame, so a generic bag won’t work as securely.
Large Capacity (Approx. 10–12 Liters): For a reel mower, this is a decent size. It holds enough clippings for a typical small lawn pass before needing to empty. It’s not massive (don’t expect a riding mower bag), but it balances weight and convenience for manual pushing.
Lightweight Fabric Construction: The bag is made from a durable polyester fabric with a plastic frame insert at the opening. It’s easy to carry, rinse out, and fold flat for storage. The material breathes, which helps prevent clippings from getting slimy if left damp.
Easy Emptying via Snap-Open Bottom: The bag has a plastic clip at the bottom that releases to dump clippings. You don’t have to reach inside or shake it out—just unclip and let the grass fall. This is a major time-saver compared to older bags that require manual scooping.
Tool-Free Attachment: The bag clips onto the mower’s rear bracket with two integrated plastic hooks. No screws, no tools. It takes about 10 seconds to attach or remove, which matters when you’re switching between bagging and mulching (if your mower allows it).

Pros

Perfect OEM fit – No guessing, no modding. It snaps onto GARDENA reel mowers securely and stays in place during use.
Easy to empty – The bottom-release clip is genuinely useful. You can dump clippings into a compost bin without touching them.
Lightweight and easy to clean – Hose it out and let it dry. The fabric won’t rust and dries quickly.
Durable for a fabric bag – Owners report it lasting 2–3 seasons with regular use before the fabric starts to fray at the attachment points.
Quieter than a plastic collection system – No rattling or clattering. It just sits there and catches grass.
Affordable replacement – At $42.99, it’s cheaper than buying a whole new mower if your original bag rips. OEM parts are always better than third-party knockoffs.

Cons

Only fits GARDENA reel mowers – If you have a different brand (Fiskars, American Lawn Mower, etc.), this bag won’t work. Measure your attachment bracket first.
Not very large capacity – For lawns over ¼ acre, you’ll be emptying it every few passes. It’s fine for small yards but tedious for bigger spaces.
Fabric can mildew if stored wet – Like any cloth bag, if you put it away damp, it will smell. You need to dry it thoroughly before storage.
Attachment clips can break – The plastic hooks are the weak point. If you’re rough attaching it, they can snap, and replacement clips aren’t sold separately.

Bottom Line

The GARDENA (4029) Grass Collector Bag is exactly what it promises: a well-made, easy-to-use replacement bag for GARDENA reel mowers. If you own a compatible model and your original bag is torn, lost, or just worn out, this is the right part to buy. It’s not flashy, but it works reliably for small lawns and is much nicer to empty than older designs. For anyone with a GARDENA reel mower who wants to keep their lawn clean without raking, this bag is a solid investment. Just don’t expect it to fit other brands or handle a large yard without frequent stops.

Frequently Asked Questions

Q: Will this bag fit my GARDENA reel mower model 380?
A: Yes, it’s designed for GARDENA models 380, 400, 400 Comfort, and similar reel mowers from that series. Check the mounting bracket on your mower—if it has two horizontal slots at the rear, this bag should clip right on.

Q: Can I use this bag with a GARDENA mulching mower?
A: No. This bag is only for reel (manual push) mowers. GARDENA’s electric or battery mowers use different collection systems. Don’t force it—it won’t attach properly.

Q: How do I clean the bag if it gets clogged with wet grass?
A: Remove it from the mower, open the bottom clip, and shake out the clippings. For stubborn buildup, rinse it with a garden hose from the inside out, then let it air dry completely before storing. Avoid putting it away wet to prevent mildew.

How It Compares

Head-to-Head Comparison: Gardena Grass Collector Bag vs. NOCO GENIUS1 Battery Charger

Quick Verdict

This comparison is fundamentally flawed because these two products serve entirely different purposes—one is a lawn mower accessory, and the other is a battery charger—so there is no single “winner”; instead, the choice depends entirely on whether you need to collect grass clippings or maintain a vehicle battery.

Side-by-Side Comparison

Feature	Gardena (4029) Grass Collector Bag	NOCO GENIUS1 Battery Charger
Price	$42.99	$29.95
Primary Function	Grass collection for reel mower	Battery charging & maintenance
Power Source	Manual (attaches to push mower)	AC outlet (120V)
Cutting Width	N/A (accessory, not a mower)	N/A
Self-Propelled	No	No
Best Yard Size	Small to medium lawns (with compatible mower)	N/A (for vehicles, boats, etc.)
Warranty	Not specified (typically 2 years for Gardena)	3 years (NOCO standard)

Where Gardena Wins

Grass collection efficiency – The Gardena bag is designed specifically for reel mowers, allowing you to catch clippings directly, reducing lawn cleanup time. It fits Gardena 400/4000/500/5000 series reel mowers and prevents clippings from scattering.
Lawn-focused utility – If you own a compatible Gardena reel mower, this bag is a direct, purpose-built upgrade that improves mowing convenience. It saves you from raking or bagging clippings separately.
Low maintenance – No electricity, no electronics, no programming. Just attach it and mow. It’s a simple mechanical accessory that requires no setup beyond clipping it onto the mower frame.

Where NOCO Wins

Versatility across applications – The NOCO GENIUS1 works on 6V and 12V lead-acid, AGM, gel, and lithium batteries. It can charge car, motorcycle, boat, lawn tractor, ATV, and powersports batteries—far more useful than a single-purpose mower bag.
Advanced features – Includes automatic desulfation, temperature compensation, overcharge protection, and a smart maintainer mode that keeps batteries at optimal charge without overcharging. The Gardena bag offers no such technology.
User satisfaction and reliability – With 62,222 reviews and a 4.4/5 rating, the NOCO charger is one of the most trusted battery maintenance tools on the market. Its 3-year warranty and proven performance far exceed the Gardena bag’s niche appeal.

Which Should You Buy?

Buy Gardena (Mower A) if:
You own a compatible Gardena reel mower (400/4000/500/5000 series) and want a clean, efficient way to collect grass clippings without raking. This is ideal for small to medium lawns where you prefer a manual push mower and want to minimize post-mowing cleanup.

Buy NOCO (Mower B) if:
You need to maintain batteries for vehicles, lawn tractors, boats, or powersports equipment. This is perfect for anyone with a garage or workshop who wants a smart, automatic charger that prevents battery sulfation and extends battery life. It’s also a great investment if you store seasonal vehicles (like a lawn tractor or motorcycle) over winter.

Buy neither if:
You don’t own a compatible Gardena reel mower and don’t need battery maintenance. If you have a gas-powered lawn mower with a built-in bag, the Gardena accessory won’t work. If all your batteries are new and you store vehicles in a climate-controlled garage, the NOCO may be unnecessary.

Final note: These products are not competitors—they solve completely different problems. Choose based on your specific need: grass collection or battery care.

Head-to-Head Comparison: Gardena Grass Collector vs. Battery Tender Junior

Quick Verdict

Neither mower is a direct competitor—the Gardena is a grass collection bag for a reel mower, while the Battery Tender is a 12V charger/maintainer—so the “winner” depends entirely on whether you need lawn equipment or battery maintenance, but the Battery Tender wins for versatility and user satisfaction.

Side-by-Side Comparison

Feature	Gardena (4029) Grass Collector Bag	Battery Tender Junior 021-0123
Price	$42.99	$37.95
Power Source	Manual (reel mower accessory)	120V AC to 12V DC output
Cutting Width	N/A (collection bag only)	N/A
Self-Propelled	No (manual mower accessory)	No
Best Yard Size	Small yards (up to 1/4 acre)	N/A (charger, not mower)
Warranty	2 years (Gardena standard)	5 years (Deltran standard)

Where Gardena Wins

Purpose-built for grass collection – This bag is specifically designed for Gardena reel mowers, allowing you to catch clippings instead of leaving them on the lawn. It’s a dedicated accessory that turns a basic manual mower into a cleaner-cutting tool.
Eco-friendly, no power required – Since it attaches to a manual reel mower, it uses zero electricity or fuel. You get the benefit of grass collection without batteries, cords, or emissions.
Simple, low-maintenance design – The bag is lightweight and easy to attach/detach. There are no electronics, no moving parts to fail, and no need for charging or winter storage precautions.

Where Tender Wins

Universal 12V battery care – The Battery Tender Junior works with motorcycles, ATVs, lawn tractors, cars, boats, and more. It’s not a mower, but it keeps any 12V battery healthy year-round, which is critical for gas-powered mowers that sit idle for months.
Exceptional reliability and ratings – With 4.8/5 stars from nearly 50,000 reviews, it’s one of the most trusted battery maintainers on the market. Users consistently praise its ability to extend battery life and prevent dead batteries.
Automatic smart charging – Unlike a basic trickle charger, this unit automatically switches to float/maintenance mode once the battery is full, preventing overcharging. It’s safer for long-term storage than the Gardena bag, which has no such feature (because it’s a bag).

Which Should You Buy?

Buy Mower A (Gardena Grass Collector) if:

You already own a Gardena reel mower and want to catch clippings for a cleaner lawn or compost pile.
You prefer manual, eco-friendly lawn care and need a simple, low-cost accessory.
Your yard is small (under 1/4 acre) and you don’t want the hassle of batteries or chargers.

Buy Mower B (Battery Tender Junior) if:

You own any gas-powered mower, tractor, or powersports vehicle and want to keep its battery charged during off-season storage.
You value a highly-rated, proven product that prevents battery replacement costs (saving you $20–$100+ per battery).
You need a multi-purpose device that works for cars, motorcycles, ATVs, and lawn equipment—not just a single-use accessory.

Buy Neither if:

You need an actual lawn mower. The Gardena is just a bag, and the Battery Tender is a charger. For a complete mowing solution, look at self-propelled gas or electric mowers instead.