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  • The Parasene Cable is ideal for making your own heated bench
  • Simply bury it among sand or your garden soil
  • This is the head of the soil warming cable
  • Perfect for raising seedlings and keeping your soil an even temperature.

Soil Warming Cable - Biogreen - 6m, 10m 25m


In a nutshell....

Soil warming cable in a variety of lengths. Perfect for raised beds, cold frames and for propagating seeds and cuttings on a heated propagation bench. Can be used with our Soil Warming Cable Thermostat


Soil Warming Cables For Better Seed Propagation

Parasene range replaced by us for the Bio-Green due to quality issues we were experiencing with the Parasene units.

A soil warming cable is the ideal way to propagate seeds and cuttings on a greenhouse bench or in a cold frame. The soil in the greenhouse takes time to warm up naturally: with a soil warming cable you are able to plant earlier and raise better specimens. Can be used in conjunction with our Soil Warming Cable Thermostat.

A simple frame can be constructed from wood to form the propagating area required, which is them lined with polythene. The cable is laid onto a 5cm of sharp sand (horticultural) and covered with a further 5cm of sand.
We use these cables and fleece to start our seedlings in February. You don't need expensive greenhouse heaters, we don't use anything else.

We stock these soil warming cables in 3 different sizes, please use the 'Size' tab above to select the required one.

Lengths: 6m (50watt), 10m(100watt) and 25m(320w)

Soil Warming Cable Sizes:

6 Metres (20 Feet) - 50 watt

10 Metres (32.8 Feet) -100 watt

25 Metres (82 Feet) - 320 watt

Write a Review
Tim Manners
March 26th, 2021
I think Ive worked this out from the video, the questions and the description but how to work out the length of cable needed should be made easier. The instructions that come with the cable state a 10 m cable heats 1.6 sq metres. This just doesn't fit with the advice on the video and q/a's, which work out at nearer 0.8 sq m for a 10 m cable (with loops 7 cm apart). I will stick with your advice rather than the manufacturers instructions
Norman Steele
February 14th, 2019
The first metre of the cable is a non-heating lead in, so the 6 metres is only actually five useful metres, the ten is nine and so on. On the other hand the plug is, happily, a three-pin Irish one not the continental.
October 04th, 2018
This was easy to set up and is working a treat. Seedlings are popping up and there's nearly a 100% success rate. And my house has not been taken over by plants as it's all happening in the tunnel. Only downside: because I went for the biggest size, the propagator is huge and too heavy to be moved so it will have to be dismantled once I'm not using it during the summer. Pain!
Meath Gerdener
September 21st, 2018
Delighted with the product. We have it up and running very simple, came with Irish 3pin plug which we plugged into digital temperature controller. Many thanks for the prompt delivery
June 21st, 2018
To connect the soil warming cable simply remove the plug and attach the wires to connector box inside thermostat as shown in the diagram included.
March 15th, 2018
Everything was 100% to our satisfaction. We would be delighted to do business on a regular basis again in the future.
April 22nd, 2017
I am delighted with my new soil warming cable and have it all set up in my new propagator table now thanks to my creative husband and of course to Quickcrop for their super fast delivery!
September 06th, 2016
Quite fiddly to get the correct spacing as the cable had been packaged in such a way that it wouldn't lay flat. Maybe Quickcrop could design a cheap plastic grid that the cable could be laid into like underfloor heating?
May 15th, 2016
I am very happy with the soil warming cable . Will I can start my dailies and bedding plants. I can't fine things I don't like about it.
April 07th, 2016
Very good reliable product
Ask a Question
Asked By Ketan
on August 30th, 2021
Is the 10 Mtr. cable fitted with U.K. standard three pin plug please?. I am getting a Bio Green Thermo 2. Will it plug straight into that thermostat please?
Answered by Niall
on August 31st, 2021
Hi Ketan Yes they come with the standard UK plug and will go directly in to the thermostat Niall Quickcrop
Asked By Jean McLernon
on May 15th, 2021
My bench is 7 feet long x 18" wide I want to make a heated bench will the 6 mitre heated cable be sufficient and I would like a thermostat do you only have a digital. I dont know if I can get onto a digital device I hate the central heating digital clock I only start central heating for an hour I cannot get into it at all. If you can include a price please and a phone number I will give you a call as I want to set up this heated bench asap thanks.
Answered by Niall
on May 17th, 2021
Hi Jean For that size of bench i would be suggesting a 10m cable as the closer you run the cable the less energy it uses to get to the required temperature. The Thermostat are very very easy to use so don't worry about it being complicated. If you go to the products on the website and order the pricing will show up for you and they are in stock so would be with you very quick. Niall Quickcrop
Asked By Sue Bosson
on March 21st, 2021
I have just bought this cable to replace my old cable which I'd had a long time and it ran through a Parasene thermostat so needs to be wired in. The new cable says, you can't remove the plug. Is that really true?
Answered by Niall
on March 22nd, 2021
Hi Sue You can remove the plug however it is not covered by warranty if you do so. I am not sure however if you wire a Biogreen cable in to a Parasene thermostat will it work ok. I have not done it but i would be surprised if that will work Niall Quickcrop
Asked By Imelda
on March 17th, 2021
I got a soil warmer. Does it warm up by just plugging it into socket. Or do I have to have frames all set up for it.
Answered by Niall
on March 17th, 2021
Hi Imelda You just plug it in to the socket and it will warm up. Best to bury it in sand so that the heat conducts by the damp sand and spreads evenly Niall Quickcrop
Asked By Mark Simper
on March 11th, 2021
What length cable do i need for a 4ft x 2ft unit please
Answered by Niall
on March 11th, 2021
Hi Mark You might get away with the 6m one but you would probably better going with the 10m. The closer you put the cables running side by side the less work the cable has to do to get to the required temperature so it uses less electricity. So if it was me i would go with the 10 metre one Niall Quickcrop
Asked By Julie Nicolson
on March 09th, 2021
What size cable do we need for 8Ft x4Ft bench please?
Answered by Niall
on March 09th, 2021
Hi Julie The largest one if you want to set it up properly. You can get away with a 10m one but you are better to run the cable close together. If you do this it doesn't have to work as hard to get the the heat levels you require so the 25m cable is best for that sized bench to achieve this Niall Quickcrop
Asked By Stephen Knowles
on February 21st, 2021
I was going to line my propagation bench with 50mm Kingspan type insulation, 1800x800, will a space blanket type of insulation work as an alternative? Thanks
Answered by Niall
on February 22nd, 2021
Hi Stephen The 50mm Kingspan is perfect for the job. I am not sure what you mean by a space blanket type of insulation Niall Quickcrop
Asked By Jason Moore
on January 13th, 2021
If my table is slightly smaller than required for the cable meaning the cables have be installed closer together should the temp be lowered to compensate?
Answered by Niall
on January 13th, 2021
Hi Jason If you put the cables closer together then less power is required to bring the temperature on the table up to the required level. So in answer to your question you don't need to lower the temperature on the thermostat it will regulate itself. It just takes less power to reach the required level Niall Quickcrop
Asked By Connie Martin
on October 31st, 2020
We've ordered an 8x6 greenhouse and intend to order the soil warming cable - having watched great video. My question is do I need a heated space after the germination phase in greenhouse? I'd love to have tomatoes, cucumber and peppers. Thanks, Connie Martin
Answered by Niall
on October 31st, 2020
Hi Connie The heat bench is great for bringing on all crops. Once they have germinated you can put them in an area off the ground without any heat but plenty of light. The exception to this is the warm weather crops like Tomatoes, Cucumbers, Peppers, Chillies etc. These need to be kept on the bench until temperatures have warmed up enough to plant them in the ground. Normally mid to late March Niall Quickcrop
Asked By Kevin r Steele
on August 24th, 2020
Hi do you sell to people in Tasmania
Answered by Niall
on August 24th, 2020
Hi Kevin We ship all over the world however our out of Europe shipping rate is expensive at present. If you Choose The Rest of the world in the drop down tab at the checkout that will help you out Niall Quickcrop
Asked By Susan
on August 10th, 2020
Hi, I have the 6m cable already, it works great; now I am building a new, larger bench of approx 219cm by 60cm. My questions are: if I buy an additional 10m cable, can it be joined up with my 6m, and if so do you think that would be enough coverage for the bench? Thanks!
Answered by Niall
on August 10th, 2020
Hi Susan I am afraid the cables can't be connected so you would be best to keep the bench you have and build a 2nd. The size you are looking at would be to big of a stretch for the 10m cable. You would be best to go with the 25m cable Niall Quickcrop
Asked By Tony Livingstone
on July 27th, 2020
Hi, what size warming cable would I need for a 16 square foot unit.
Answered by Andrew
on July 30th, 2020
Hi Tony. You will need the largest 25m cable for a 16 sq foot set up.
Asked By Ann Ryan
on June 12th, 2020
Hi how much is the 6 meter cable and what size propagator would it suit.
Answered by Niall
on June 14th, 2020
Hi Ann The pricing is all on the website for the different sizes but the cables are for heat benches not Propogators. We have plenty of propogators that have cables built in to them Niall Quickcrop
Asked By Brendan Dean
on January 23rd, 2020
I presume this cable will work fine with my 220v thermostat which i can plug it into?
Answered by Niall
on January 23rd, 2020
Hi Brendan Yes it should work fine however the manufacturer Biogreen only guarantee the product when used with their thermostat. That said we have had other customers run the Biogreen cables off other thermostats which worked fine Niall Quickcrop
Asked By Paul Winters
on January 15th, 2020
Hi there is it possible to have an 86m cable made up? (bench is 6.8m x 1.2m) If so how much would that be please? Many thanks Paul
Answered by Niall
on January 15th, 2020
Hi Paul I am afraid Biogreen don't do bespoke cables so the largest i can offer you is the 25m cable. They can be connected together however they won't stand over them once you do this. We have done it ourselves and they have worked but as i said they won't guarantee them once this is done. Regards Niall Quickcrop
Asked By Graham Ridler
on November 05th, 2019
is the full length of the cable heating or some of it not heating? can you put the cable closer together to fit into a certain sized bench?
Answered by Niall
on November 06th, 2019
Hi Graham The first half metre of the cables is non heating for safety reasons and also so you don't loose heat that you don't need to be producing. The closer you run the cables the better it works. We normally specify 2 to 3 inches apart Niall Quickcrop
Asked By Harvey
on June 08th, 2019
In your video you water the sand thoroughly once built. How often the bed need watering after that?
Answered by Niall
on June 10th, 2019
Hi Harvey We water the sand in our tunnel thoroughly once a week as it seems to help the heat conduct much better from the cables Niall Quickcrop
Asked By Sandra
on April 07th, 2019
Hi, What length of cable would I need for a 6’x2’ unit, spacing cable at 3” apart? It is my first attempt at building a propagating table so want to get it right! Your video is very clear and helpful.I notice on your website there is no 25mtr cable offered, do you not sell this length any more? How much would it cost for the cable I need plus a rod thermostat? I look for word to your reply. Sandra
Answered by Tony
on April 09th, 2019
Hi, with 3" spacing a 10m cable should fit your bed. We do still sell the 25m cable and will be back in stock later this week. The current price for a 1m cable with a thermostat will come to £107.00
Asked By Niamh Níi Dhúill
on February 24th, 2019
Hi Quickcrop - I just watched the video and it looks very do-able. My question is about the cable length. If I get the 25 m cable and it is too long, can I cut it to size? I will be connecting it to the thermostat . Go raibh maith agat Niamh
Answered by Megan
on February 25th, 2019
Hi Niamh - unfortunately you cannot cut the soil warming cables. Thanks, Meg - Quickcrop
Asked By Julie Newbould
on February 14th, 2019
I would like to include a porous pipe in my heated ssnd bed. Should it be below, above or at the same level as the heat cable?
Answered by Niall
on February 14th, 2019
Hi Julie Thats no problem. You are best to put the cable directly on to the insulation board then cover with the 2 inches of sand and put the piping on top of the sand. You can then put a light covering of sand over the water pipe but really only so it is easy to put your trays on the unit. Regards Niall Quickcrop
Asked By Zanna Hoskins
on February 11th, 2019
Hi, how long would a 10m cable take to warm a bench full of sand (following the instructions in your tutorial) that is 1m x 2m
Answered by Megan
on February 12th, 2019
Hi Zanna, normally it would take about 2 hours to get this area of sand up to the 22 degree mark. Thanks, Meg - Quickcrop
Asked By katarina
on January 08th, 2019
What temperatures are riched in the soil if I do not use a thermostat? Is it dangerous to overheat the system? Do you recomend the regulation of temperature with plug the cable in timer?
Answered by Niall
on January 08th, 2019
Hi Katarina It totally depends on where you have the cable set. If it is in a polytunnel or glasshouse the Thermostat will cut off once the temperatures get above 28 degrees however temperatures in tunnels can get up to 40. Use of the cables and thermostats is particularly important up to the end of March when temperatures are low in tunnels and glasshouses and thereafter to keep soil temperatures up overnight I hope this answers your question Regards Niall Quickcrop
Asked By William Gibson
on April 01st, 2018
Can I use this cable dry say around a big plant pot or leave it on top of the sand also can I return a 10-meter cable for a 6 meter
Answered by Niall
on April 02nd, 2018
Hi William You can use it on to of the soil or sand however you will end up heating the air more than anything and it will be expensive to run. That is why it is better put in soil or sand. You can of course return a 10m cable for a 6m one. Just phone us in the office and we will arrange which warehouse to send it back to. Regards Niall Quickcrop
Answered by Niall
on April 02nd, 2018
Hi William You can use it on to of the soil or sand however you will end up heating the air more than anything and it will be expensive to run. That is why it is better put in soil or sand. You can of course return a 10m cable for a 6m one. Just phone us in the office and we will arrange which warehouse to send it back to. Regards Niall Quickcrop
Asked By Bernie
on March 25th, 2018
Hi, We built a heated bench , 8ft X 4ft with a parasene cable and thermostat. I've used it once. This year it doesn't seem to be working - not heating up very much. You mentioned you had problems with parasene before. I work also on an organic farm growing veg and the seeds I've sown there have germinated quickly and successfully. You can feel the heat under the trays, but on my own bench, there's no heat when you lift the trays. Although, there is a little heat on the cable as it enters the bench. ? and If i get a bio green cable , will that be compatible with a parasene thermostat? thanks.
Answered by Niall
on March 26th, 2018
Hi Bernie The 6 metre cable will be sufficient however i am sorry to inform you that the Bio Green thermostat will not work with the Parasene cable as far as i know Regards Niall Quickcrop
Asked By Mick
on February 17th, 2018
Hi what sort of plug is on the cable and does it plug directly into the thermostat
Answered by Andrew
on February 19th, 2018
Hi Mick. The cable has a 2 pin plug on it which needs to plug into the 3 pin face on the thermostat but an adaptor is included for this purpose. The thermostat has a 3 pin plug for power supply into your domestic socket.
Asked By Ruben
on February 19th, 2017
Hi, What wattage is the 25 meter cable and what is the max temperature of it?
Answered by Andrew
on February 20th, 2017
Hi Ruben. The 25 metre cable is 320 watt. The 10m is 100 watt and the 6m cable is 50 watt.
Asked By Ian
on January 19th, 2016
Do you have a longer cable available I have a seed bed 4ft by 16ft with Dutch lights I'd like to get a 25m cable
Answered by Andrew
on January 20th, 2016
Hi Ian. Thank you for your question. The cables are available in 6m, 10m and 25m lengths. Once in the product section just select the product tab for variations available. If you are still struggling with this just phone us in the office and we will get you sorted.
Asked By Grainne
on December 16th, 2015
What area do your cables cover I read 3 " apart so the first cable is 1.5" from the side of the box and the last one is also 1.5" from the other side of the box. ???? What is the most efficient way to use them? I am wondering if a longer cable or two shorter cables are more energy efficient? How much electricity does each cable length require to run??
Answered by Andrew
on December 17th, 2015
Hi Grannie. The should be 3 inches apart so yes, the cable will be 1.5 in from the side of the box. The most efficient way to use them is with a thermostat as they only turn on when the temp falls below the required level. The length of the cable doesn't effect the power used so if you are building a single bench I would use one cable. I am not sure how much each cable costs to run but we have 6no. 8x4foot benches (a lot of cable) and it costs us about €200 a year for very extensive growing. I would suggest your bill will be nowhere near that. I hope this helps. If you need any more help please feel free to call the office on 01 524 0884. Andrew.
Asked By Govinda shrstha
on May 02nd, 2015
Do you more than 24 meter cable
Answered by Andrew
on May 11th, 2015
Hi Govinda. I'm afraid we don't have cables longer than 24m bit can get them made to size. What size do you require?
Asked By Vino
on April 03rd, 2015
what will be the size of the bench with the 6, 12 or 24 meter cable?
Answered by Andrew
on April 07th, 2015
The 24 meter cable will do an 6 x 4 foot bench, the 12m a 4 x 3 foot bench and the 6m a 3 x 2 foot bench.
Asked By Tom Daly, Armagh
on March 27th, 2015
Can I use this kit, but with a polythene cover over the damp sand-base(to prevent high humidity and condensation)& in conjunction with fluorescent light units, all covered by an insulated cover to bring on plants after germination?
Answered by Andrew
on March 31st, 2015
Hi Tom. Yes you could place a polythene cover over the sand and do what you suggest.
Asked By chloe
on March 16th, 2015
How many degrees does this heating cable raise the soil temperature?
Answered by Andrew
on March 16th, 2015
Hi Chloe The soil warming cable will raise temp to approx 22 degrees but this depends on the temperature in the tunnel and how close you place the elements. If you place the element closer you can get a higher temp. I hope this helps. Andrew
Asked By John Alldred
on March 06th, 2015
What wattage is your 6 metre cable and does this price £39.50 include thermostat? If not do you supply thermostats and price please.
Answered by Andrew
on March 09th, 2015
Hi John. The soil warming cable is 75 watts. The thermostat is not included in the price but we do supply them @ £54.95. I hope this helps.
Asked By marc Smalley
on February 20th, 2015
How do the deep roottrainers do on a heated bed using your cable. Do they warm up as well given that the rootrainer cells are suspended in the plastic frame?
Answered by Andrew
on February 25th, 2015
Rootrainers will not do so well on a heated bed as the modules aren't in contact with the soil. You would be better using the 84 cell plant trays. Rootrainers are best used indoors to germinate the seed which once sprouted can go into the tunnel or greenhouse.
Asked By john bowes
on February 05th, 2015
how deep do you put the cable from the surface of your raised bed
Answered by Andrew
on February 05th, 2015
Hi John. Are we talking about the heat cable to make a propagation bench?
Asked By macieq
on December 19th, 2014
What is the power output of that cable? Thanks
Answered by Andrew
on December 19th, 2014
The Ac mains supply is 220-240 Volts. It is a regular 3 pronged plug . Is that what you wanted to know?

Important Delivery & Stock Information 


Delivery Times

Delivery times had been impacted earlier in the year with the increase in online shopping putting immense strain on all couriers. Thankfully we are almost back to normal. 

Please allow 2-3 working days for delivery.

We sincerely apologise for any inconvenience which may have been caused due to Covid-19 and very much appreciate your patience during this time. 

Standard Quickcrop deliveries only €3.95.

Standard delivery €3.95 - Our standard delivery rate is €3.95 and covers all goods except raised beds and some selected heavy items. €3.95 is the total delivery price irrespective of the number of items ordered.

Allotment raised beds €5.95 - Allotment style raised beds carry a delivery of €5.95 per complete order. €5.95 is the total delivery price irrespective of the number of allotment raised beds or additional items ordered.

Premier/Deluxe raised beds €9.95 - Premier or Deluxe raised beds carry a delivery of €9.95 per complete order. €9.95 is the total delivery price irrespective of the number of raised beds or additional items ordered.

Bulky Items €9.95 - Some large items (e.g. compost bins) carry a delivery charge of €9.95. Any items that carry the large item surcharge will be clearly marked on the product page.

Will there be any extra charges? There are no customs fees. Occasionally an additional delivery charge may be incurred when preorder items are ordered along with items for immediate delivery. Preorder items include  bulbs, seed potatoes, garlic, onions, bare root stock etc. 

European deliveries outside Ireland
We also deliver to the UK and other European countries, please see our delivery rates below. Our flat delivery rate is an absolute bargain and is far cheaper than any of our competitors, please take this into account when comparing product prices.

Where do we deliver to?
We deliver nationwide to the island of Ireland, the U.K., Austria, Benelux Countries, Czech Republic, Denmark, Finland, France, Germany, Hungary, Italy, Norway, Poland, Portugal, Spain, Slovakia, Slovenia, Sweden and Switzerland. Please see our delivery rates below:

€12.95 - The United Kingdom (Highlands and Islands may incur a surcharge, please contact us at support@quickcrop.com for details)

€14.95 - Austria, Belgium, The Netherlands, Luxembourg, Denmark, France, Germany, Switzerland.

How long does it take?
Stock permitting we aim to dispatch your goods within 2 working days of receiving your order. The average time taken from order to delivery is 2-3 days for Irish orders, 3-5 days for UK orders, and 8-10 working days for other European destinations.

What If I'm not in at time of delivery?
The driver will leave a note with the depot contact number. Delivery can be arranged for the next day or a later date.

I'm ordering several items, do they all arrive at the same time?
All items dispatched at the same time will normally be delivered in one delivery. The exceptions are bulk bags of soil or compost which comes in a separate delivery using a different delivery company. Seedlings will be dispatched directly from our tunnels.

What if my parcel is damaged or I wish to return the goods I have ordered?
Contact our office at support@quickcrop.com and we will arrange collection and refund or replacement of faulty or damaged goods.

If you wish to return goods for any reason other than damaged or faulty items please return the item to us at the following address and we will issue a refund minus the delivery charge. Goods must be undamaged and in their original packaging. Please take care when parceling returned goods to ensure it reaches us in good condition.

Our returns address is: Quickcrop ltd., Unit 4, Ballymote Industrial Estate, Ballymote, Co.Sligo.


If you are unsure about any aspect of our delivery service, feel free to email us at support@quickcrop.com. Messages are monitored between 8am and 4pm Monday to Friday

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Soil Warming Cable - Biogreen - 6m, 10m 25m
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