Evidence that wins horticulture grants:
How to prove need, feasibility and impact
By Tania Harman and Daniel Knox
This article is the third in our Successful Grant Writing series for horticulture businesses, grower groups and researchers. In Article One, we focused on the strategic foundations of a competitive application: the right project, at the right time, for the right program1. In Article Two, we explained how applications are assessed and why strong projects can still miss out when key claims are not clearly supported2. This time we focus on evidence: what it is, what assessors will accept, and how to build an evidence set that makes it easy for an assessor to award points with confidence.
In grant assessment, evidence is not an appendix. It is the mechanism that converts your narrative into scoreable claims. Assessors cannot assume your baseline is real, your partners are committed, your approach will work in commercial conditions, or your benefits will flow beyond the trial. If the application asks you to ‘demonstrate’ something, the default standard is to show it in a way that another person can verify and defend in a panel discussion.
What assessors mean by ‘evidence’
Baseline evidence (proves the problem is real and sized). This is your ‘before’ picture: recent yield, packout, defect rates, waste, labour hours, sprays, water/energy use, residue/non-compliance events, rejections, downgrades or supply disruptions. Wherever possible, cite a source and timeframe (e.g., last season, last three seasons) and show variability by region, season or market channel.
Causal evidence (proves why your approach should work). This can include prior trials, published research, grower benchmarking or preliminary data from your own pilot. It does not need to be perfect, but it must be relevant to your crop, production system and Australian conditions. Explain what the evidence suggests, what remains uncertain, and how your project design will reduce that uncertainty.
Feasibility evidence (proves you can deliver in real seasons). Show trial sites secured, access to orchards/blocks, key inputs or technology availability, staff capability, permits/approvals where relevant, and a realistic timetable against the horticulture calendar. A workplan that is season-aware is itself a form of evidence, it signals you understand the constraints that can derail delivery.
Commitment evidence (proves partners are real, not aspirational). A short, specific letter of commitment that names sites, contributions, roles and timeframes is worth far more than a generic endorsement. If you claim co-investment (cash or in-kind), evidence it; who is paying, what they are providing, how it is valued, and when it will be available.
Value-for-money evidence (proves your budget is defensible). For material cost items, quotes or clear assumptions protect you during due diligence. For labour and travel, show the link to activities and sites. For major equipment or services, justify why they are essential and how they will be used beyond a single trial (if relevant).
Impact evidence (proves benefits are measurable and attributable). Provide targets (e.g., % packout gain, sprays reduced, ML/ha saved, % waste reduction) and explain how you will measure them. If you claim industry-wide benefit, show the pathway to help the assessor; number of growers, hectares, packhouses, advisers or regions that could adopt, and why.
Adoption evidence (proves change is likely). Strong adoption sections are evidence-backed. They reference existing advisory networks, packhouse/market drivers, current practice constraints, planned demonstration and communication activities. If possible, use commitments from grower groups, advisers or supply-chain partners who will help with extension and uptake.
A practical way to think about evidence is that every high-scoring response has two parts:
- A clear claim written in the assessor’s language, and
- The proof that allows an assessor to tick the box without hesitation.
If either part is missing, the score usually drops, even when the underlying idea is strong.
Good evidence is specific (numbers, sites, dates, roles), relevant (to the crop, region and production system), and verifiable (it can be traced to a source or a named commitment). ‘We have strong industry support’ is a claim. A signed letter that states the partner will provide three trial blocks, staff time for assessments and access for field walks is evidence.
Common evidence mistakes in horticulture grant applications fall into predictable patterns:
- Using generic industry statements instead of crop- and region-specific baselines
- Relying on “trust us” capability claims without naming who will deliver
- Listing partners without stating what they will do
- Presenting benefits without a measurement method
- Providing a budget with no quotes, assumptions or link to the workplan.
These are not writing problems, they are evidence gaps.
To strengthen your application across the main assessment areas, make sure you can back each of the following points with clear, relevant evidence that an assessor can verify.
Evidence for strategic alignment: Quote the priority you are responding to (program and/or industry plan) and then show a direct line to your project outcomes.
Evidence for need: Provide a quantified baseline with a source and timeframe, plus who is affected (growers, packhouses, marketers) and where. If you use survey or consultation insights, summarise the method (who, when, how many).
Evidence for the approach: Reference what is already known (prior trials, published studies, pilots) and then explain what your project will test, compare or validate. Spell out key design choices (sites, seasons, controls, sampling, thresholds) at a level that demonstrates rigour.
Evidence for feasibility: Name the people and roles, confirm trial access, and show that the timeline matches real production windows. Include contingencies for seasonal disruption (reserve sites, alternative seasons, staged milestones).
Evidence for adoption: Identify the target adopter segments and the mechanism that will shift practice (demo sites, adviser networks, packhouse specs, decision tools, training). Include how you will measure uptake (e.g., attendance, follow-up surveys, practice change reporting, hectares under new practice).
Evidence for benefits: Convert outcomes into measurable indicators ($/ha, % packout, % waste reduction, sprays reduced, ML/ha) and explain the measurement method and timing. If benefits depend on adoption, clearly separate ‘trial result’ from ‘industry impact’ and show the assumptions that connect them.
Evidence for budget and value for money: Provide quotes or transparent assumptions for major costs and show that each major budget line maps to activities and sites. Where co-investment is claimed, include who provides it, what it consists of, and how it is valued.
Evidence for risk: Identify the major risks that matter most and provide practical mitigations. Risk tables score well when they show you have thought about go/no-go points, alternative pathways, and how you will protect public or levy money if conditions change.
The goal is also not to overload an application with attachments. The goal is to remove doubt. When your application reads like a series of clear claims backed by proof, assessors can score quickly and confidently, and your project is more likely to survive moderation, due diligence and budget scrutiny.
If you would like to discuss this further or to discuss your grant projects, please reach out to Tania or Daniel (details below).
Tania Harman
Director – R&D Tax and Government Incentives
PwC Australia
M: 0421 051 740
E: tania.harman@au.pwc.com
Daniel Knox
Partner – R&D Tax and Government Incentives
PwC Australia
M: 0438 335 794
E: daniel.knox@au.pwc.com
This content is for general information purposes only and therefore does not constitute financial product advice and should not be relied upon as financial product advice. For financial product advice that takes account of your particular objectives, financial situation or needs, you should consider consultation with professional advisors.
References
- ‘How to write a successful grant application’, Hort Journal Australia, April 2026, pp. 36-37.
- ‘How horticultural grants are assessed’, Hort Journal Australia, May 2026, pp. 18-19.