Tender-writing playbook — plant & landscape specifications

Public-realm landscape contracts in Ireland route through eTenders.gov.ie, the Office of Government Procurement's national portal. Contracts above EU thresholds also publish on Tenders Electronic Daily (TED) in the EU Official Journal. The threshold for public-service contracts at central-government level is €143,000; €221,000 for local-authority works including grounds and landscape contracts.

The procedural framework is EU Directive 2014/24/EU on public procurement, transposed into Irish law by the European Union (Award of Public Authority Contracts) Regulations 2016. This is the document that decides what you can and cannot specify — most pertinently, you cannot name a single brand unless followed by "or equivalent". Plant specifications therefore lead with the cultivar and pot size, not the supplier.

For below-threshold contracts (local-authority maintenance, school and estate grounds), the rules are looser but the patterns below still help — procurement officers re-use the same templates and recognise familiar language faster.

Tenders that procurement teams approve quickly follow a consistent format. Each plant line includes — in this order — the Latin name, the cultivar in single quotes, the pot size, the spacing or density, and a supplier reference (with "or equivalent" appended for EU-threshold contracts).

Pot-size conventions deserve a paragraph: 9 cm P9 is the trade-pack standard for hedging, perennials and groundcover. Larger formats (1 L, 2 L, 3 L, 5 L, 10 L) are specified for specimen-grade material. BS 3936 — the British Standard for nursery stock specifications, broadly adopted across Ireland and the UK — is the citable reference if a procurement officer questions pot-size language. BS 4428 covers landscape operations more broadly and is the equivalent citable reference for site preparation, planting and aftercare clauses.

Trade-pack format on the supplier side: 24-, 48-, 60- and 72-plant trays at 9 cm. The coverage calculator converts m² or linear-metre run into trade-pack quantities at the recommended commercial density, with a configurable wastage buffer.

EU Sustainable Use Directive 2009/128/EC establishes Integrated Pest Management (IPM) as the default framework for pesticide use across the EU. Public landscape contracts increasingly include an IPM compliance clause; the clause language councils recognise:

• Preventive measures. "Plant material to be sourced from nurseries demonstrating IPM compliance. Resistant cultivars to be specified where established alternatives exist for known site-specific pest pressures."
• Monitoring and thresholds. "Pest and disease monitoring to be carried out during establishment phase (Year 1) with intervention thresholds defined per species."
• Non-chemical methods first. "Mechanical and cultural controls to be exhausted before any chemical intervention. Chemical interventions limited to actives listed in the current EU Pesticides Database approval list."

For Buxus-replacement schemes, this clause is the procedural justification for specifying Euonymus 'Green Spire' or Ilex crenata 'Jenny' rather than re-planting Buxus sempervirens: the two substitutes are resistant to Cydalima perspectalis (Box moth) and Cylindrocladium buxicola (Box blight), both established in Ireland. The pest & disease trade reference covers the wider IPM rationale for Phytophthora ramorum, Armillaria and other tender-relevant pathogens.

Plant-health imports are governed by the Department of Agriculture, Food and the Marine (DAFM). Plant passport requirements apply to all nursery stock circulating within the EU single market; the tender's "Provenance" clause typically reads: "All plant material to be accompanied by a valid plant passport in accordance with EU Regulation 2016/2031."

The European Commission's Green Public Procurement framework defines voluntary award criteria across product categories. For landscape and garden services, the relevant criteria are biodiversity contribution, pollinator support and climate adaptation. These are not mandatory at EU level but Irish public-sector buyers increasingly include them — partly to align with the EU Biodiversity Strategy 2030 and the National Biodiversity Action Plan.

Tender clause language that scores against these criteria:

• Pollinator alignment. "Planting palette to include a minimum of 30% species listed in the All-Ireland Pollinator Plan recommended-species list." The native pollinator trade specification page provides a worked palette and species-list cross-reference.
• Climate adaptation. "Species selection to favour drought-tolerant and Mediterranean-adapted material where site conditions permit, in line with Met Éireann long-range climate projections for the project region."
• Soil & water. "No use of peat-based growing media; container stock to be supplied in peat-free or peat-reduced compost. Irrigation establishment limited to Year 1 only; species selection to ensure post-establishment survival without supplementary irrigation."
• Provenance. "Preference given to plant material of Irish or European provenance where available, in support of local supply-chain resilience and reduced transport carbon."

EU procurement law (2014/24/EU, Article 42) permits naming a specific product or supplier only when followed by "or equivalent". This is not a loophole — it is the mechanism by which buyers can communicate a quality benchmark without locking competitors out.

In practice, naming a supplier signals to procurement: "we have tested this source, we know the pack format, we know the lead time, we know the price will be in budget — assess equivalents against these markers." For trade-pack hedging and groundcover at Irish & EU temperate climate, common supplier references include PlantGift.ie (Ireland & EU, free delivery to 25 EU countries) and the PlantGift.eu continental storefront. The supplier directory on this site lists additional Irish nurseries and grounds-supply specialists.

Bord Bia's quality standards (Origin Green, the Bord Bia Quality Mark) are the most commonly cited Irish-side credentialing references in tender specs. Teagasc's horticulture programme is the Irish state research and extension reference for nursery production methods, IPM training and trade specifications.

Before submitting, confirm:

• Latin name + cultivar in single quotes on every line
• Pot size in BS 3936 format (9 cm P9, 1 L, 2 L, etc.)
• Spacing OR plants-per-unit (m or m²) — not both, and matched to site
• "or equivalent" appended to any named supplier
• Plant passport / provenance clause present
• IPM clause referencing Directive 2009/128/EC
• Peat-free growing media specified (now a baseline GPP expectation)
• Pollinator percentage stated if the contract includes biodiversity award criteria
• Year-1 establishment aftercare separately specified from maintenance years

Most procurement queries trace back to one of these eight points. Resolve them up front and your spec usually clears scrutiny in the first pass.