Gardena AquaBloom Review: Solar Watering for Balconies
Gardena AquaBloom Review: Solar Watering for Balconies
Gardena AquaBloom verdict: the reference tapless watering kit for balconies, solar, scheduled and self-contained, matched to pots not thirsty grow bags.
The reference tapless watering kit for balconies: solar, scheduled and self-contained - just match it to pots, not thirsty grow bags.
- Ease of setup 4.3
- Watering performance 3.9
- Running costs 4.9
- Reliability 3.4
- Value 4.0
Strengths
- Completely tap-free and mains-free - genuinely balcony-native watering
- 14 sensible schedule presets cover holiday and everyday use
- Pressure-equalising drippers deliver evenly across pots and heights up to 4 m
Watch outs
- 0.5 l/h drippers suit modest drinkers - thirsty tomatoes and large veg outrun the flow
- Hose connections at the pump can pop off if not seated precisely
- A minority of owners report pump or charging failures, with intense sun exposure a suspected factor
- Best for Holiday watering and all-season drip irrigation on tapless balconies
- Running cost Zero electricity - solar-charged rechargeables (replace AAs every few seasons)
- Capacity 20 pots from one bucket or tub, up to 4 m of lift
- Consumables Standard 4.6 mm micro-drip fittings; generic AA NiMH cells fit
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- Plant capacity
- Up to 20 plants (drip heads included for all 20)
- Power
- Integrated solar panel charging 3x AA NiMH rechargeables (1.2 V, 2400 mAh) - no mains connection
- Water source
- Any open reservoir (bucket, tub); no tap connection required
- Watering programmes
- 14 presets: twice daily (10/15/20 min), daily (15/20/30/35 min), every other day (10/20/30 min), every third day (10/15/20 min)
- Dripper flow
- 0.5 l/h pressure-equalising inline drip heads
- Max delivery height
- 4 m of lift from reservoir to plants
- Included
- 3-in-1 main unit (pump + controller + solar panel), 20 drip heads, 20 m of 4.6 mm supply pipe, 8 T-pieces, 8 end plugs, filter, 15 pipe pegs, 3 rechargeable AAs
- Installation
- Tool-free; unit stands on a table, mounts to a wall or pushes into a pot
- Winter care
- Remove batteries and store the unit frost-free over winter
- Larger variants
- 13301-20 adds a water tank; AquaBloom L (13330-20) covers 30 plants with 2 l/h and 0.5 l/h drippers and a Li-Ion battery
Synthesised from https://www.testberichte.de/p/gardena-tests/solar-bewaesserungs-aquabloom-set-testbericht.html
- Consistently praised
Tap-free, tool-free concept
Two professional magazines awarded top marksTesters praise that a complete drip system runs from a bucket with no tap, mains or tools, installing flexibly anywhere on a balcony.
- https://www.testberichte.de/p/gardena-tests/solar-bewaesserungs-aquabloom-set-testbericht.html
- Mixed feedback
Flow too low for thirsty plants
The consistent professional criticism is that the 0.5 l/h drippers cannot keep up with high-demand vegetables, limiting it to pots of modest drinkers.
- https://www.testberichte.de/p/gardena-tests/solar-bewaesserungs-aquabloom-set-testbericht.html
- Consistent complaint
Durability of pump and connections
About 9% of ~2,000 user reviews are dissatisfiedThe main user complaints are hose connections working off the pump and a minority of pump or charging failures, possibly linked to intense sun on the unit.
- https://www.testberichte.de/p/gardena-tests/solar-bewaesserungs-aquabloom-set-testbericht.html
- Consistently praised
Even, quiet watering
User ratings average about 4.2/5Owners report quiet operation and even distribution across pots at different heights when set up correctly.
- https://www.testberichte.de/p/gardena-tests/solar-bewaesserungs-aquabloom-set-testbericht.html
The AquaBloom is built around the defining constraint of balcony growing: no outdoor tap and no outdoor socket. Its 3-in-1 head unit combines the pump, the scheduler and a solar panel, draws water from any bucket or trug, and pushes it through pressure-equalising drippers to as many as 20 pots, with up to 4 metres of lift for railing planters and shelving. Fourteen preset programmes run from twice-daily summer watering to an every-third-day maintenance cycle, so it works as everyday automation rather than only holiday cover. German product tests scored the concept highly, and a roughly four-star average across thousands of user reviews backs up the day-to-day experience.
The honest limit is flow. At around half a litre per hour per dripper, it is designed for pots of herbs, flowers and salad leaves, and testers are explicit that it is too little for water-hungry vegetables in large containers. The recurring complaints in that big review base cluster around occasional mechanical and pump niggles rather than the core idea, which is well proven.
How do you set it up so it doesn't leak?
Almost every durability complaint in the review base traces back to installation rather than the electronics, and all of it is avoidable. Lay the full 20 m of supply pipe out along the planned run before you cut anything - re-joining an over-short section is where drips start. Cut the 4.6 mm pipe square with sharp scissors or a knife; ragged, angled cuts are the documented cause of weeping joints at the T-pieces. Seat both hose connections on the pump head firmly until they resist a tug - connections working loose at the pump is the single most common mechanical complaint from owners, and a half-seated fitting can pop off mid-cycle and quietly empty the reservoir.
Keep the intake filter fitted and rinse it when you refill - it is the only thing standing between compost dust and twenty blocked drippers. Stand or mount the unit where the panel gets good light, pin the line down with the supplied pegs so pots can't drag it, and always run a full programme with everything in place before you trust it with a holiday.
How big a reservoir do you need?
You can size the container straight from the published flow rate: each dripper delivers 0.5 litres per hour, so all 20 running together draw 10 litres per hour of pump time. That turns the 14 programmes into simple arithmetic:
- Daily, 20 minutes (the typical summer setting): about 3.3 litres a day for 20 pots - a 60 l trug lasts roughly two and a half weeks.
- Twice daily, 15 minutes (heatwave cover): about 5 litres a day - the same trug gives around 12 days.
- Every other day, 20 minutes (spring and autumn): under 2 litres a day on average - 60 l stretches past a month.
Running fewer drippers scales it down in proportion - 10 pots use half the water. Add a margin for evaporation from an open container, size for the longest trip you'll actually take, and confirm the sums with a test run: measure how far the level drops in two or three days before you leave for two or three weeks.
Which AquaBloom should you buy?
Gardena sells three versions of the same idea, and the differences that matter are dripper flow and battery type:
| AquaBloom Set (13300-20)Reviewed here | AquaBloom with tank (13301-20) | AquaBloom L (13330-20) | |
|---|---|---|---|
| Plants covered | Up to 20 | Up to 20 | Up to 30 |
| Drippers | 20 x 0.5 l/h | 20 x 0.5 l/h | Mixed 2 l/h and 0.5 l/h |
| Power | Solar + 3 AA NiMH | Solar + 3 AA NiMH | Solar + Li-Ion battery |
| What's different | The standard kit - pump unit, 20 m pipe, all fittings | Bundles a dedicated water tank as the reservoir | Bigger pump set with faster drippers |
| Best for | Most tapless balconies - herbs, salads, flowers | Neater installs with no spare bucket or trug | Larger terraces and thirstier plants |
| Buy | Buy now |
How does it compare to the alternatives?
The AquaBloom's real competition is not another Gardena kit but the other ways of watering a space with no tap. The closest rival is Irrigatia's SOL-C12, which trades fixed schedules for weather-responsive watering - it runs every three hours and delivers more on sunny days, is rated for twelve 20-litre pots including tomatoes, and adds a water-level alarm for the butt. Passive clay-cone systems such as Blumat sit at the no-electronics end, and a mains-fed micro-drip network on a tap timer remains the strongest option wherever a tap exists.
| Gardena AquaBloomReviewed here | Irrigatia SOL-C12 | Blumat clay-cone kit | Mains micro-drip + tap timer | |
|---|---|---|---|---|
| Water source | Any open container | Water butt or barrel | Raised reservoir, gravity-fed | Outdoor tap |
| Power | Solar + AA NiMH | Solar + AA NiMH | None - fully passive | Battery timer |
| Coverage | Up to 20 pots, 4 m lift | 12 drippers, up to 5 m lift | Per-pot cones, add as needed | Effectively unlimited |
| Thirsty veg? | No - 0.5 l/h drippers | Yes - rated for 12 tomato-sized pots | Depends on cones per pot | Yes |
| Weather-aware? | No - 14 fixed schedules | Yes - waters more in sun | Indirectly - cones release as soil dries | Only with a smart timer |
| Buy | Buy now |
Best for
Tapless balconies with pots of modest drinkers
Skip if
Grow bags of tomatoes or big thirsty containers
Verdict
For a balcony or terrace grower without a tap who wants automatic daily watering and worry-free holidays for up to 20 pots, the AquaBloom is the reference solution and the one to beat. If you are irrigating thirsty crops such as grow bags of tomatoes, it will not keep up, and a mains-fed micro-drip system or a larger reservoir setup is the better answer.
At around £120-130 at the time of writing it is not an impulse buy, but it replaces a summer of twice-daily hand-watering with a system that charges itself, and the consumables - standard AA rechargeables and generic 4.6 mm micro-drip fittings - cost pennies to replace. Get the pipe cuts and pump connections right on day one, size the reservoir with the arithmetic above, and it is the most self-contained watering a tapless balcony can currently have.