Crop planning: succession, cultivars, and why processing changes the maths
In a vegetable CSA, crop planning revolves around one thing: having something to put in the box every week. In a processing operation the maths is different — and that is an advantage the plan should deliberately use.
Why crop planning is central at all
The CSA literature repeats one thing like a mantra: a well-thought-out crop plan is absolutely essential, and succession is critical — crops are planted in series so harvests are spread out and members don't get everything at once.[1] Without it you get "feast-or-famine," which CSA members notice immediately.[2]
That is well-established for vegetable CSAs. But a raspberry is not a vegetable, and a processing operation is not a salad box. So the logic shifts in two places.
The biology that dictates the plan: primocane vs floricane
Raspberry plants have perennial roots and crowns, but the canes are biennial — they live only two seasons.[3] This splits cultivars into two types, and the choice is the first big decision in the plan:
- Floricane (summer-bearing) — fruit only on second-year canes. First-year canes are vegetative only; harvest comes early-to-mid summer. That means no fruit in the planting year and only a light load in year two — full yield potential arrives in year three.[4]
- Primocane (fall-bearing / everbearing) — fruit at the tips of first-year canes in late summer/autumn, and can give a second crop on the lower part of the same canes early the following season.[3:1]
The two most-discussed cultivars on the Bulgarian market — Polka and Heritage — fall in the primocane-oriented spectrum, and Heritage is among those explicitly cited as suited to double-cropping.[4:1]
The double-cropping system: built-in succession
This is the key agronomic decision for an operation wanting a long season. The double-cropping system with primocane cultivars works like this: in late winter, only the top third of the cane is removed — the part that fruited the previous autumn — and the lower two-thirds remain to become the floricane that gives a summer harvest.[5]
The documented result: floricane fruit starts in mid-July and bridges the gap until primocane fruit begins in late summer.[6] The picking season under such systems can be 8–10 weeks rather than a short peak.[7]
For a CSA this is succession built into the plant's biology — but it has a cost: double-cropping requires additional management and extends the picking labour.[6:1] Hence the literature's explicit advice — only double-crop if you have a market that supports the additional costs.[6:2]
Why processing changes the whole calculation
In a vegetable CSA, succession exists to avoid spoilage — produce is perishable on a weekly clock. Here the whole strategy is different: 7,500 kg of raw fruit does not go into weekly boxes, but into eight shelf-stable SKUs (see the Eight SKUs article).
This means three things for the crop plan:
- A harvest peak is not a crisis. In a vegetable CSA a big peak is a problem. Here a concentrated harvest just means concentrated processing labour — which is planned, not discarded. Fresh fruit has hours of life; jam has months.
- Succession serves labour, not perishability. The reason to want a spread harvest here is not "so it doesn't spoil" but "so it doesn't overload processing capacity in one window." One technologist plus seasonal help has a finite daily labour-minute capacity (see the income statement).
- Cultivar choice is both an agronomic and a product decision. A longer picking season means smoother supply to the workshop — but also more weeks needing people in the field and the kitchen.
What this means for the model
The 500 kg/декар assumption in the canonical figures is defensible for Bulgarian conditions — but it is an average for an established planting. The crop plan must account for: near-zero income in year one and incomplete income in year two under a floricane cultivar; a longer, smoother season but higher picking labour under a primocane/double-crop system; and a long planting lifetime — typically 10–15 years for red raspberry[8] — making the cultivar choice a decade-long decision.
How that yield is split across sales channels is the subject of the distribution article; how the membership base absorbs part of it, the member retention article.
Източници / Sources
Community Supported Agriculture (CSA) Resource Guide for Farmers — NC State Extension ↩︎
Raspberry types and varieties — University of Minnesota Extension ↩︎ ↩︎
Trimming Raspberry Bushes: primocanes vs floricanes — Gardeningfine ↩︎
Primocane-fruiting raspberry production in Central Oregon — OSU Extension ↩︎ ↩︎ ↩︎
Floricane yield and berry quality of seven primocane red raspberry cultivars — ScienceDirect ↩︎
Primocanes — overview (planting lifetime), ScienceDirect Topics ↩︎