Bio Green HC-4 Hydro Classic Recycle A Bottle Terracotta Stake Set with Adapters - Orange (4 Pieces)

Best watering device for larger plants by a long mile but don't bother with the green plastic adapter or using plastic bottles ( there are two large puddles on my floor that tell you how well that went) use the terracotta spike with a wine bottle which has a screw cap not a cork ( the grooves on the neck of the screw cap bottle help it lock in to the spike when you twist it in to place and stop the water from just gushing out). Once I figured that out I watered my plants set up the device then left for my chilli plants on 15 day holiday... on return my plants were fine and well watered and a few had fruited!

These are quite big so fantastic for larger house plants, a little too large for smaller window pots though. They do work though and I'm really pleased with them, can you do a smaller version as well please? :)

after years of searching - I finally have something that works for the bigger plants. I was surprised that there was no hole at the point of the terra cotta - I checked it in the sink - and the terra cotta outside gets wet quickly - so no bottle emptying overnight. In fact - I put it in a pot where the (drooping) plant needed watering - and overnight it didn't pull more than 250 ml of water - and my plant was all perked up. So with the normal watering routine - and this a back-up (in Greece and with temps lately at 42-43C - and water sometimes in short supply - this will save the day. I did post a note on one comment - if you don't be careful about a white washer - the water can then come up from the terra cotta. the other hint is the terra cotta has to be completely covered by dirt (otherwise it will dry out with the air). But it is so easy to just lift the bottle and leave the terra cotta in the dirt. And - the 1 1/2 liter soda bottles actually screw on very snug - for years I have had some spikes that one bottle would work on one - but not on another spike - and the problem of the thin plastic bottlechanging shape is gone. But someone else mentioned - PLEASE A SMALLER VERSION FOR SMALLER POTS OF FLOWERS!

There's a nack to them, and it ain't easy. Like another reviewer, when I tried, the bottle just emptied all over the patio. My partner worked it out, though: he said you should fill the terracotta spike with water first? Bit fiddly for me, but he's worked it out, so he's in charge of them now!

These do not work. The adapter fits on to the bottle and then just sits inside the terracotta... The water simply floods through the gap. I have the ones that fit wine bottles, and they are great and work fine. These are a complete waste of money.

Ingenious and very useful! Keeps the soil in my balcony planters moist between watering and particularly useful when I'm away for a few days in preventing everything from wilting. You do need to ensure the terracotta stake is buried fully in recently watered soil and is full of water itself before inserting the bottle. Good enough product that I have recommended it to friends and family,

Works well and kept my plants ticking over when I couldn't be there to water them. Doesn't work well with all plastic bottles but now I have found which screw on nicely it works well for me.

It can be tricky to set them up, as the bottle has to be angled just right. When we went away for a week, we returned to dry half-dead plants.