How to Price a Flower CSA: A Real Costing Method for Bouquet Subscriptions

A flower CSA is the best cash-flow tool a small flower farm has. Members pay upfront in late winter for a season of weekly or biweekly bouquets, and you get a chunk of capital exactly when you're buying seed and the bank account is at its thinnest. But most farms price their shares by feel — "$30 a bouquet sounds about right" — and then quietly lose money on every one. Here's a costing method that actually holds up.

First, decide the shape of the share

Before you can price it, define it. A bouquet CSA share is four decisions:

• Length — full season (16–20 weeks) or half (8–10 weeks). Half-season shares convert better for first-timers.
• Cadence — weekly or biweekly pickup. Biweekly is far easier to fill from a small field.
• Size — stems per bouquet. 12–15 for a standard share, 18–22 for a deluxe.
• Fulfillment — pickup (at the farm, a market, or a partner café) vs. delivery. Delivery changes your costs a lot.

For the worked example below we'll price a 10-week half-season share, weekly pickup, 15 stems a bouquet.

The 4-step costing method

Price up from your costs, then sanity-check against your market. Never the other way around.

Step 1 — Your true cost per stem

This is the number most farmers underestimate, because they only count seed. Your real cost per stem includes:

• Inputs — seed/plug, soil amendments, drip, netting (amortized).
• Labor — seeding, planting, weeding, and especially harvest and processing, which is the big one.
• Overhead — land, cooler, tools, insurance, market fees, spread across your total stems.

On a well-run small farm, a fully-loaded cost of $0.30–$0.60 per stem is realistic. We'll use $0.45.

Step 2 — The stems you cut and can't sell

Fifteen stems in a bouquet do not cost fifteen stems to grow. Some of what you cut is bent, short, bug-bitten or blown open, and those stems cost exactly as much as the good ones — same seed, same bed space, same harvest time — while earning nothing. Most small farms lose somewhere between 5% and 20% of what they cut, depending on the crop, the week and the weather.

So work out what you must cut to end up with fifteen sellable: divide, don't add a percentage. At a 10% cull rate that's 15 ÷ 0.90 = 16.7 stems, not 16.5. The gap looks trivial at 10% and stops being trivial fast — at a 30% loss it's 21.4 stems, where adding 30% would have told you 19.5.

Step 3 — Cost per bouquet

16.7 stems × $0.45 = $7.50 in flowers, of which $0.75 is stems you binned. Now add the build:

Item	Cost
15 stems in the bouquet @ $0.45	$6.75
1.7 stems cut and binned @ $0.45	$0.75
Wrap, sleeve, label	$0.75
Arranging labor (~6 min)	$2.00
Total cost / bouquet	$10.25

Keep the binned stems on their own line rather than rolling them into the flower cost. It's the line that tells you what a bad cull week is really costing, and it's the first thing worth attacking — better netting, cutting earlier in the day, a tighter harvest window.

Step 4 — Apply your margin

A flower farm needs a healthy gross margin to survive the season's risk — aim for 60–70%. At a 65% margin, your price is cost ÷ (1 − 0.65):

$10.25 ÷ 0.35 = $29.29 → round to $30 per bouquet.

Over a 10-week weekly share, that's $300. Offer it at $285 paid upfront — the small discount rewards the early commitment and the cash, and it still clears a strong margin.

Note what skipping step 2 would have done: $28 a bouquet, $280 a season, and a farm that believes it is running a 65% margin while actually running about 63%. A cost you don't model is a cost you appear not to have, and the error always runs in your favour on paper.

A pricing-tier table you can copy

Offering three sizes lifts your average order value — most members pick the middle. Here's a clean structure based on the costing above:

Tier	Stems · Price/bouquet · 10-wk season
Petite	10 stems · $23 · $220
Standard	15 stems · $30 · $285
Deluxe	22 stems · $40 · $380

Full vs. half, weekly vs. biweekly, pickup vs. delivery

• Half-season shares (8–10 weeks at peak) sell to nervous first-timers and let you concentrate them in your most abundant window. Add a full-season option for your superfans.
• Biweekly halves your harvest-week pressure and is the right call if your field is small or your succession plantings are tight.
• Delivery can add $4–8 of cost per bouquet once you count fuel and time — price it as a separate add-on, don't bury it.

Founding-member and early-bird pricing

Sell next season's CSA in the off-season, when you most need the cash. Offer a founding-member rate (e.g. $265 instead of $285) to the first 20 sign-ups, with a deadline. It rewards early buyers, builds your committed base before you've spent on seed, and gives you a hard number to plan plantings around.

How many shares can your field support?

This is where pricing meets reality. A weekly 15-stem share needs 15 sellable stems every week of the season — nearer 17 cut, once the culls are counted — from varieties that are actually blooming that week. Sell 40 shares and you've promised 600 stems a week, which is about 667 to cut, on top of your weddings, market, and wholesale. Overcommit and you're buying in flowers at full price to fill subscriptions you sold at a margin — the fastest way to turn a profitable CSA into a losing one.

The fix is to reconcile, every week, what you've promised across all channels against what your bloom plan says you'll cut. That's the exact job Stemwise does: it builds each week's CSA bouquets from your surplus after weddings and wholesale are filled, and flags the week you've oversold before it bites you.