Best peat-free composts for your summer patio – Which? News

Rising pots of summer season bedding and veg offers months of delight, however are you able to do it with out costing the earth? Sure with a low-cost, peat-free Greatest Purchase compost.

Which? Gardening journal has discovered 5 Greatest Purchase composts, all of them peat-free, that are excellent for crops in containers. This yr we solely examined peat-free composts as we all know crops develop simply in addition to in peat, and it’s greatest to keep away from utilizing peat the place you possibly can.

Greatest Purchase sustainable composts

We examined 25 composts, all peat-free, in summer season 2021. Some have been reformulated since we examined, however we nonetheless discovered 5 glorious composts that have been awarded a Greatest Purchase. Two of them are from massive DIY chains and so are low-cost and available. The opposite three could be present in backyard centres.

There are numerous causes for selecting peat-free compost, not least of all the truth that harvesting peat releases large portions of carbon dioxide. Figures from The Wildlife Trusts recommend that’s 2020 alone, the peat harvested to be used in UK composts may launch as much as 880,000 tonnes of CO2, the equal of driving to the moon and again 4,600 instances.

Learn our information to peat-free composts to see the arguments for making the shift, and use them.

How to decide on peat-free compost

Peat-free compost is normally constituted of a mixture of a number of supplies, together with handled wooden fibre, composted bark, coir and inexperienced compost, in different phrases compost constituted of the contents of green-bin collections. There are even composts constituted of composted bracken and sheep’s wool.

Many composts are actually scored for the way sustainable they’re and you may verify how they price. The rating is calculated from how every materials is sourced, considering: power and water use; social compliance; habitat and biodiversity; air pollution; renewability and useful resource use effectivity. There is no such thing as a measure for greenhouse gasoline emission in the intervening time, however this needs to be included later this yr.

The data needs to be proven within the backyard centre, or on a QR code on the bag, but when not you possibly can have a look at the Accountable Sourcing Scheme web site.

Methods to use peat-free compost

The number of substances in peat-free composts imply they behave otherwise to peat.

You’ll need to pay shut consideration to watering and feeding, ensuring you don’t get the compost too moist, or depart it to dry out, and be prepared to provide your crops a feed utilizing a Greatest Purchase liquid feed if progress stalls. Verify your pots at the very least as soon as a day

If you’re planting up pots of summer season bedding and veg, you may discover it best to make use of a controlled-release fertiliser. This can feed your crops for a lot of the summer season with out you having to do something.

Managed-release feeds, because the title suggests, releases fertiliser slowly, when the compost is moist and the climate is heat, giving your crops all they want for months on finish.

Discover out which manufacturers are Greatest Purchase controlled-release feeds and use them.


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