*Special Offer: Free Seed Collection
Perfect For Growing Tomatoes, aubergines, peppers, beans, cucumbers, courgettes and more...
Harvests are 2x bigger when grown in a Quadgrow planter compared with growbags or pots.
This is because the Quadgrow maintains perfect moisture levels for up to 14 days at a time. In a Quadgrow the soil is never too dry or waterlogged. The roots also have better access to oxygen which fuels faster growth.
Each of the pots in the Quadgrow has a FeederMat which pulls water up from the SmartReservoir to the roots when the plant needs it. Just top-up the SmartReservoir when it runs low.
Your plants will be stronger and healthier because there's no risk of any erratic watering which often causes root rot, split fruit and blossom end rot.
Nominated for best space-saving product and most innovative gardening product by Grow Your Own magazine readers. Ideal for greenhouses, polytunnels and on patios.
Featured on BBC’s Beechgrove Garden. Watch the full video review here.
Free Feed: Includes 2.5 Litres of award-winning Nutrigrow Plant Feed worth £10.99.
Even longer holiday watering
Every Quadgrow has a 30 litre SmartReservoir which keeps plants watered for up to 14 days. If you're going away for longer perhaps add our 25 litre holiday watering kit.
Made in England by Greenhouse Sensation
2 year guarantee
Special Offer: Save £9.00 when you buy Potting Up Granules with a Quadgrow Planter. Discount will be applied at the cart. Ask us a question
Our Quadgrow self-watering planter is a great alternative to growing vegetables in pots and growbags and is the perfect way to grow your own tomatoes. The Quadgrow planter produces healthier plants and bigger harvests by providing plants with constant access to water without ever over-watering.
What happens when we overwater?
Overwatering prevents roots from accessing oxygen and is the number one cause of plant demise.
When soil is over-watered the pores in the soil become blocked and the roots can't access the air in the soil. Roots need access to oxygen in order to absorb water and nutrients, so lack of oxygen means that the roots can't take up water or nutrients. A plant weakened by overwatering is susceptible to disease, particularly fungal attacks. If the over-watering is repeated the roots suffocate and die.
What happens when we under-water?
Underwatered plants don’t have enough water to make glucose for photosynthesis, for developing cells and for two other critical functions.
1: Transporting nutrients and glucose
Water is needed to carry nutrients from the soil and glucose from the leaves to the other parts of the plant. This is why the calcium deficiency blossom end rot is often caused by erratic watering even if there is sufficient calcium in the soil but not enough water to transport it to the tomatoes.
2: Accessing carbon dioxide
Plants access the carbon dioxide they need for photosynthesis by opening the pores on their leaves and stems. When the pores open they also release water. If the plant is short of water it won't open the pores as often and therefore it won't photosynthesise as much, which will lead to lack of glucose and stunted growth. Sunny, hot weather and windy conditions increase the rate of water loss through the pores, so plants need more water in these conditions.
Read our Tomato, Chilli & Vegetable Growing Guides.
Quadgrow Planter - L130cm x W24cm x H36cm
Each Quadgrow Planter has a 30 Litre SmartReservoir, Pot Placement Tray, 4 x 11 Litre pots and 4 x FeederMats, Free 2.5 Litres of award-winning Nutrigrow plant food.
2 x Quadgrow Planter - 2 x L130cm x W24cm x H36cm
Order the 2 x Quadgrow to save money. Note that you will only receive 1x 2.5 Litres of the free Nutrigrow plant food when ordering this special offer.
Quadgrow With Holiday Watering Kit
Quadgrow plus a holiday watering kit . The holiday watering kit includes a 25 Litre water butt, 2m length of pipe, water level controller and all necessary connectors.
2 x Quadgrow Planter With Double Holiday Watering Kit
2 x Quadgrow Planters plus a watering kit for 2 Quadgrows. The holiday watering kit includes 25 Litre water butt, 2 x water level controllers, 2x 2m length of pipe and all necessary connectors.
The maximum Mainland UK Delivery charge is £4.95
98% of our orders are delivered 2 workings days after the order is placed. When your order is dispatched you will receive an email confirming the delivery date.
UK Standard Delivery (standard items and all orders over £25.00): £4.95
UK Replenishment Delivery (FeederMats, Nutrigrow refills): £2.95
For orders outside of the UK please click HERE:
You can add 'If Out' delivery instructions (e.g. leave in garage) when you place your order. If you are not in and have not provided 'If Out' instructions the driver will leave a card with instructions of how to arrange re-delivery or collection from your local depot.
If you are not completely satisfied with your purchase, email firstname.lastname@example.org and we will provide instructions of how to return the goods. They must be returned in their oridinal condition and packaging within 14 days of receipt and we will issue a full refund. (excluding original delivery chanrge). If an item is damaged / faulty please notify us within 30 days.
N:B Definition of UK Mainland
UK Mainland is defined as postcodes on mainland England, Wales and Scotland excluding the following postcodes.
AB31-38, AB40-56, IV1-28 , IV30-32, IV36-49, IV51-56, IV63, KA27-28, KW, PA20-38, PA41-49, PA60-70, PH4-44, and PH49-50.
Delivery to the above post codes incurs a surcharge, which will be displayed when you enter your postcode.