ArchipelAI
ORCHARD

Bloom frost, in a warming climate.

The paradox: warmer winters raise frost damage. Here's why, which crops are most exposed, and what actually protects bloom.

What ArchipelAI gives you

Every orchard field in the Agriculture workspace gets projected bud-break and last-freeze trajectories with a false-spring risk flag. Try it in the agriculture demo.

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// frequently asked

Common questions

Why does an earlier spring raise frost risk?
Bud break is triggered by GDD accumulation, which rises quickly with warmer late winters. The last spring freeze is more variable and hasn't retreated as fast. The result is a wider window where fragile bloom tissue can meet a hard freeze — the false-spring problem.
Which orchard crops are most exposed?
Almonds, apricots, cherries, peaches — anything with a short bud-break-to-full-bloom window in the false-spring belt. Apples are somewhat more resilient because of longer bloom duration. Citrus is less exposed to bloom-frost but more exposed to hard-freeze fruit loss.
What protection actually works?
Overhead irrigation (uses the heat of fusion to buffer tissue), wind machines (mix inversion layers), heaters/smudge (marginal, expensive), and cultivar/rootstock selection with later bloom. Site selection — avoid frost pockets, favor slopes — matters more than any of the above.
How can I project this forward?
By pairing projected bud-break date (from GDD accumulation) with the projected last-freeze distribution. When those distributions overlap materially, the site is a false-spring risk site.
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