Quadgrow and Octogrow Tomato Pots
Large self-watering pots with integral reservoir

Holiday-proof pots – best seller
Upgrade your tomato planter
Why settle for an average tomato crop when you can have bigger, more beautiful harvests with our planters that keep plants perfectly watered for 2 weeks at a time?
Don’t just take our word for it though, the Quadgrow (with 4 pots) and Octogrow (with 8 pots) are out best-selling planters for good reason…
"The Quadgrow is genius" Julian at chileman.org
"The results exceed all expectations and we are highly delighted with this product. We have had great success with both Quad and Octogrows. The results are incredible." Mike and Sue Knight, July 2010
The Quadgrow and Octogrow produce bumper, holiday-proof crops thanks to the SmartMat controlled watering that provides the perfect balance of water, nutrients and oxygen at all times.
The water from the planter’s 34litre reservoir is gradually provided to the compost in the pots when the plants need it – but the plants never sit in water - so they grow more quickly, more healthily and produce bigger harvests. Your plants are perfectly fed and watered at all times, so no more overwatering or underwatering.



What's great about it?

Grow Bigger Harvests
Plants in the Quadgrow and Octogrow produce bumper harvests because they are provided with constant access to water and nutrients but they never sit in water.
Your plants are never over-watered or under-watered, great news when you consider that these are the two most common causes of many gardening problems. You won’t hear Quadgrow growers complaining of blossom end rot and yellow leaf drop.
The 11 litre pots provide each plant with plenty of space to grow the large, thick roots they need for nourishment. Well nourished plants are stress free so they can focus on producing fruit. We regularly harvest 10lbs of tomatoes from our Quadgrow.
Develop Greener Fingers
Whether you are completely new to gardening, or you have decades of growing under your belt, your fingers will quickly become greener.
Because you can see how much water has been taken from the reservoir each day you’ll develop a keen understanding how the amount of water plants need differs according to soil dampness, plant size, light levels and weather conditions. So you’ll soon be watering in-line with the plants’ needs and they’ll be no danger of you over-watering or under-watering plants – the causes of the most common gardening problems.
If you haven’t already got green fingers you’ll be relieved to hear that there’s no guesswork involved with the Quadgrow and Octogrow. The Quadgrow and Octogrow automatically control levels of water, nutrients and oxygen, so there’s no danger of under-watering or over-watering. The pots will care for your plants from spring planting to harvest.
Grow anywhere, no green space required
You can use your Quadgrow and Octogrow anywhere; in the garden, on the patio or indoors in your conservatory or kitchen. Just find a sunny spot.
Stress-free Holiday Watering
Our Quadgrow and Octogrow come complete with a Holiday Watering Kit which connects an external 25 litre reservoir (included) to the smaller integral reservoir and takes care of weekends and weeks away. Just top up the 25litre reservoir before you go and your plants will be watered for up to two weeks.
So, there’s no need to bribe your friends, neighbours and family and then cross your fingers that they don’t undo all your hard work with haphazard watering.

A head start – thanks to lids option
Add the optional lids and you’ll give tender plants the best start. They’ll be protected from frosts and nibbling pests.

How it Works
The automatic watering is powered by the Smart Mat Strips. These take water from the Reservoir up to the soil in the each of the pots. This ensures your plants always receive the perfect balance of water, nutrients and oxygen, putting an end to under-watering and over-watering.
The reservoir is continuously topped up by the Holiday Watering Kit thanks to a water regulator. Simply add water and our specially formulated plant food to the Holiday Watering Kit’s 25 litre bucket every two weeks and your plants will have constant access to nourishment.


What Can I Grow?

What people say
"Thank you for two wonderful items i have purchased from you, they have made me a happy gardener"
After having poor results for many years, Steve bought a Vitopod Propagator and Octogrow from us to see if he would fair any better. He planting his tomatoes on 16th February and even after 4 inches of snow they are going strong six weeks later and are already up to the third truss. Steve Renshaw, March 2010
"I got one of these last year and the results were very impressive - my tomato plants were much bigger than the plant in the photo.
I grew two pepper plants and two tomato plants in this and also grew the same varieties in ordinary pots for comparison. The difference in growth rate was so obvious even within a couple of weeks of the seedlings being planted. Not only were the Quadgrow plants taller, but each branch of the plant was thicker and healthier looking. My understanding is it is because the plant always gets exactly what it needs so it is always at maximum growth rate, whereas with the ordinary pots you are just guessing when it is thirsty, and how much water it wants. I got 44 big tomatoes off a single plant which hit the roof of my greenhouse and was still trying to flower in October. It doesn't need electricity or anything complicated, so I bought one for my parents too.
J. Livsey, December 2009
"Just wanted to say how great I have found your Quadgrow product this year.
I planted two peppers and two tomatoes. The pepper plants are much bigger than they would be in ordinary pots and the tomatoes turned into vines that were only slowed down by the size of my greenhouse, much more productive than the same varieties in ordinary pots too.
The best thing about the Quadgrow is not having to fiddle with water pumps which makes them great for people without electricity in their greenhouse. I have tried a few self-watering products over the last few years, this one is genius. I am already deciding what to grow in it next year."
Julian at thechileman.org, August 2009
Have Your Say:
If you are growing in our Quadgrow or Octogrow pots, why not let us know what you think of our growing kits by sending us a review?
To send in a review, simply click here

How much will I harvest?
Have a look at our customers' bumper harvests and our own...
Bumper harvest of 7.9kg of tomatoes!
In 2009, our Gardening Angel Victoria planted Scarlatto, San Marzano, Rosada and Sweet Million tomatoes in a Quadgrow in our Greenhouse . She harvested 7.9kg from just one Quadgrow. Marvelous!

Amazing difference in growth rate
Julian at thechileman.org reports on the great results he has had growing with a Quadgrow
Julian the Chileman sent in these photos, highlighting how well his tomatoes are growing in his Quadgrow.
He is growing a heritage tomato plant in this Quadgrow pot. Compare it to the plant in the pot alongside. The small blue pot is the same heritage tomato plant potted into a normal plant pot.
The automatic watering from the Quadgrow that is feeding the lucky heritage tomato is making a big difference in comparison to conventional growing.
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Quadgrow 'v'
Conventional
Growing |
Quadgrow's optimum automatic watering helps the plant grow
quicker |
Quite a difference! |
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The image above, on the right, is a comparison from Julian's Marianna's Peace tomatoes.
The plant on the left is growing in Julian's Quadgrow and it's receiving the Greenhouse Sensation balanced plant food, included in each Quadrow.
Both varieties were pricked out as seedlings at the same time and the difference in growth rate is amazing. The biggest leaves on the Quadgrow-grown plant are the length of the small plant.
Julian has had a great season growing in his quadgrow....
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Huge crop of
Marianas |
Banana Legs
doing well |
A bumper harvest! |
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What will I receive?
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Quadrow with 4 x 11litre pots or Octogrow with 8 x 11litre pots
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Holiday Watering Kit – 25litre bucket for keeping plants watered and fed for up to two weeks
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Plant food – one season supply
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Clear instructions
Free Gardening Angel Support
As a Greenhouse Sensation customer, you'll receive all the advice and support you need from our friendly Gardening Angels. From how to get started to tips on harvesting, our expert team will help you on your way to growing more successfully.
Quadgrow Options:
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Protective lids – Place these clear vented lids onto your self-watering pots for greenhouse protection.

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