How do I set up .. Self Watering System for Tomato Plants

Although it is still a few weeks before I'll be putting my tomato plants in the greenhouse, on my new allotment I would like some advice please.

Previously I have grown tomatoes at home, so watering is pretty easy, I can do it every day if required. At the allotment, this won't be so easy.

I want to set something up, so I can perhaps miss a couple of days, without having to worry about the plants drying out.

Would grow bag trays, filled with water be OK, if I stand the pots on something and dangle some capillary matting into the water ?

What other options are there please ?

I did see in Aldi a few weeks ago a self watering trough, which was basically a small trough inside a large trough. It seemed a bit small though for tomato plants.

Any advice would be appreciated.

 

How about this......

http://www.amazon.co.uk/Garland-GF676-BIG-DRIPPA-WATERING/dp/B000TAU7SQ

I've been given two of these and will be trying them for the first time this year in my greenhouse.

 

I have used Autopots for several years. The plants are fed from the large reservoir through tubing. A simple float device in their trays allows water to flow when the level gets low.

 

I use a similar setup - greenhouse sensations quadgrow - cant really fault it, they have a holiday watering kit option that Im trying this year otherwise you need to refill every couple of days when its hot.

 

I have just purchased two packs of these for my toms and cucumbers this year
www.amazon.co.uk/plant+halos
Reading the blurb on the side they appear to be just what I need for when the OH and I are away on our (well earned) holidays.
If the link doesn't work (I'm never sure about these things) just google Garland Plant Halos.

 

Thanks for the info.

As you suggested, the link you kindly provided doesn't work, so here it is below
http://www.amazon.co.uk/Garland-Green-Plant-Halos-Pack/dp/B005X8D2Q8/ref=pd_sxp_f_pt

 

Forgot to mention, the info on the website says that the water drains away within 6 hours however info on the product tells you how to make it last for up to a week.

 

That's what I do at home, but the greenhouse base / foundation I was left at the allotment already had a concrete inner too, which is filled with pea gravel. No doubt the previous plot holder used the ring culture method of growing. I have also used this at home, but with the pots simply sitting on the border soil.