📍 Quick Answer
The microGREENFX CSA partnership member rate is $10/week ($240/season). The wholesale rate paid to microGREENFX is below that, leaving a meaningful per-member margin for the partner farm. At 50 opted-in members, the gross add-on revenue runs $12,000 per 24-week season with low operational lift. At 100 members, $24,000. The economics scale linearly with opted-in count. The margin compounds because the operational distribution time is similar at 50 and 100 members.
CSA operators evaluate add-ons two ways. First, "do my members want it?" Second, "does the math work for my farm?" 🧮
We have written about member psychology in a separate post. This piece is the math: what the wholesale-to-member rate spread looks like, what the per-member margin is, and how the economics scale across season and member count.
These are real numbers from the Pennypack Farm partnership model, adapted for partner-CSA conversations.
The Per-Member Math 📊
Member rate: $10 per week, $240 per 24-week season. This is the published rate members pay through the partnership.
Wholesale rate to microGREENFX: below the member rate, with the spread becoming partner farm margin. Specific number is discussed during the application call so we can model it for your scale.
Per-member partner margin: meaningful percentage of the $240/season per member. Compounds across member count.
Operational lift per member: minutes of additional pickup-day distribution time per member. Does not require additional staff hires.
How the Numbers Scale 📈
- 50 opted-in members: roughly $12,000 in member revenue per 24-week season. Partner farm margin is meaningful and accrues with no additional growing infrastructure investment.
- 100 opted-in members: $24,000 in member revenue. Partner farm margin doubles. Operational distribution time roughly doubles too, but the per-member time stays similar.
- 200 opted-in members: $48,000 in member revenue. At this scale, the partner farm should have a dedicated pickup-day flow for the microgreen add-on rather than treating it as ad-hoc.
- Renewal compounding: every season a member renews, they renew the microgreen add-on too. Multi-year economics compound the partnership margin while operational cost per member stays flat.
What Drives Opt-In Rate 📌
Member-facing copy. The way the add-on is presented on your CSA signup page meaningfully affects opt-in rate. We can provide tested copy.
Visible product on pickup day. Members who see the microgreens being distributed to other members on pickup day frequently sign up mid-season for the next season.
Sample weeks. Some partner CSAs offer one free sample week early in the season to all members as an opt-in driver. Conversion rate from sample week to season-long opt-in tends to be high.
Variety presentation. "Microgreen add-on" is generic. "27 varieties of fresh microgreens harvested the morning of delivery, $10/week" is specific and converts higher.
A Few Calibrating Questions 🤔
- What is your current renewal-driven revenue from add-ons (eggs, dairy, fruit) on a per-member basis? Where does a microgreen add-on sit in that range?
- If you ran the math at 50% opt-in rate among your existing membership, what does that revenue addition look like for your season?
- How would your distribution day workflow accommodate one additional add-on, and what is the staffing cost or time hit?
- If a partner farm took on 100% of the supply chain risk and your operational role was just distribution, would the per-member margin justify the additional pickup-day time?
Run the Numbers for Your CSA 🌿
Apply at microgreenfx.com/csa/apply/. We will model the partnership economics specifically for your member count and operational model. We respond personally within 24 hours.