The Woodland Trust’s created the United Kingdom and Ireland Sourced and Grown (UKISG) initiative as a voluntary benchmark for tree procurement. Like the Plant Healthy Certification Scheme, UKISG focuses on full visibility of the supply chain.
King and Co sources every UKISG tree from within the UK and Ireland, making each tree traceable from seed collection to planting. This approach develops resilient woodlands and reduces the risk of importing pests and diseases.
Purchasing trees sourced and grown in the UK helps the Woodland Trust reach its goal of planting 64 million trees by 2025 and supports the UK’s net-zero 2050 target. Importing trees increases the biosecurity risk to native species, while transport alone contributes significantly to carbon emissions.


What do the Plant Healthy and UKISG audits entail?
Independent inspectors evaluate us to ensure we uphold the highest biosecurity standards in the tree-growing industry. They carefully assess every detail when it comes to the sourcing and growing of seeds and trees.
Further along the growing cycle, inspectors examine how we handle, check, and care for our stock. They also rigorously assess our methods and practices to ensure safe biosecurity. This scrutiny continues to pre-dispatch checks before shipping trees to customers. Rest assured, buy from a Plant Healthy and UKISG nursery for plants you know have received the best possible care!
By purchasing from a Plant Healthy and UKISG-certified nursery, customers can trust that the plants have received the best possible care. Since both schemes are voluntary, King and Co’s participation reflects its strong commitment to preserving the safety of UK native species.
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