Planning a Greenhouse: From Crop Choice to Supplier RFQ
Eight stages, in the order that avoids rework. Each stage lists the decisions to close and the calculators, checklists and templates on this site that support them — supplier-neutral throughout, and written for commercial projects from USD 250,000 upwards.
How do you plan a commercial greenhouse from crop choice to supplier RFQ?
Work in eight stages: fix the crop and target market, gather site and climate data, choose the technology level and structure, confirm water quantity and quality, size energy and automation, test the budget and returns, write one tight specification, then issue a single normalised RFQ to several relevant manufacturers and compare like-for-like.
- Area is derived from target volume, not chosen first
- Water quality decides fertigation design before equipment is specified
- One normalised RFQ to 3+ relevant manufacturers enables comparison
The eight stages
- Stage 1
Crop and market
What am I growing, for whom, and to which grade?
Everything downstream — structure height, climate strategy, growing system, packhouse — is derived from the crop and the buyer it is grown for. Export retail programmes and local wholesale lead to different projects on the same hectare.
Decisions to close- Primary crop and any planned rotation or second crop
- Target market: export, retail programme, wholesale, processing
- Quality grade, pack format and delivery window commitments
- Target annual volume, which sets area rather than the other way round
Tools for this stage - Stage 2
Site and climate
What does my location force the design to solve?
Climate decides whether the project spends money on cooling, heating, dehumidification or simple protection. Site data — radiation, temperature extremes, humidity, wind, soil and access — is the input every supplier will ask for.
Decisions to close- Design temperature and humidity extremes, not annual averages
- Whether the dominant load is cooling, heating or both by season
- Wind and snow loads for structural specification
- Road access, power connection point and water source location
Tools for this stage - Stage 3
Technology level and structure
How much control does this crop and market actually justify?
Technology level is an economic decision, not a prestige one. Higher control raises yield and consistency but also CAPEX, energy and skill requirements. The right level is the lowest one that reliably meets the grade and window you sold.
Decisions to close- Protective structure, mid-tech or high-tech climate control
- Glass, rigid plastic or film covering
- Soil, substrate or full hydroponic growing system
- Screens, ventilation and cooling method combination
Tools for this stage - Stage 4
Water and fertigation
Is my water sufficient, and is its quality usable?
Water quantity and quality kill more greenhouse projects than structure choice. Peak-day demand, storage buffer, source salinity and treatment must be settled before irrigation and fertigation equipment can be specified.
Decisions to close- Peak-day and annual water demand for the planned area
- Source analysis: EC, sodium, chloride, bicarbonate, iron, pathogens
- Storage volume, filtration and any treatment or blending
- Open drain versus recirculating fertigation, and zoning
Tools for this stage - Stage 5
Energy and automation
What will it cost to run, and what should be automated?
Energy is usually the largest recurring cost and the one most often underestimated in early budgets. Automation is justified where it stabilises quality or replaces scarce labour, not as a default add-on.
Decisions to close- Annual electrical and heating demand, and tariff exposure
- Whether solar PV and storage change the operating economics
- Climate computer, dosing control and monitoring scope
- Labour availability and the skill level the design assumes
Tools for this stage - Stage 6
Budget, financing and returns
Does the project stand up as an investment, not just a build?
CAPEX alone never tells you whether a project works. Lifecycle cost, operating cost per kilo, payback and financing structure determine whether the plan survives its first difficult season.
Decisions to close- CAPEX range by scope package, with contingency and escalation
- Annual OPEX and cost per usable square metre
- Payback, ROI and downside scenarios
- Equity, leasing or credit route, and what a lender will require
Tools for this stage - Stage 7
Specification and readiness
Is the scope defined tightly enough to be quoted like-for-like?
A loose scope produces quotations that cannot be compared. Before approaching suppliers, the technical requirements, exclusions, delivery terms and responsibility split should be written down once and reused for every bidder.
Decisions to close- Scope boundaries and named exclusions (civil works, power, water, customs)
- Technical requirements and performance expectations per system
- Incoterms, installation responsibility, commissioning and warranty
- Documentation, training and spare parts requirements
Tools for this stage - Stage 8
Supplier RFQ and comparison
How do I get comparable proposals from relevant manufacturers?
One normalised RFQ sent to several relevant manufacturers produces proposals you can compare on the same basis. SeedMatchGroup structures the request and routes it; suppliers contract and invoice you directly.
Decisions to close- Which supplier profiles genuinely match the climate, scope and scale
- A single normalised RFQ document issued to all bidders
- A comparison method covering price, scope gaps, terms and lifecycle cost
- Clarification rounds before any commercial decision
Tools for this stage
Read alongside the journey
How a sourcing specialist connects greenhouse, irrigation, fertiliser and seed decisions into one coherent project.
The foundational planning guide behind stages 1–5 of this journey.
Planning risk, water quality, lifecycle economics and automation depth.
How AI tools — and the MCP tools — structure requirements before supplier selection.
Where SeedMatchGroup fits
SeedMatchGroup is an independent, human-led commercial agriculture procurement platform. A sourcing specialist helps structure the requirement, normalise the RFQ and route it to relevant manufacturers. It does not manufacture, engineer, build, install, lend or guarantee outcomes, and it does not replace agronomists or engineers. Suppliers contract and invoice buyers directly, and all calculators on this site produce indicative planning figures rather than quotations.