Peas Starchy: Harvest Timing and Heat
Peas starchy and mealy in the pod usually mean they stayed on the vine too long. Sugar in peas turns to starch quickly after they mature.
The short answer
Minnesota Extension says overmature peas taste starchy with tough skins. They decline within one to three days of maturity. Missouri Extension says pick pods as soon as they swell round. Illinois Extension says up to 40 percent of the sugar converts in a few hours after picking. Cool peas fast.
Why are my peas starchy?
Missouri Extension says peas left on the plant too long convert sugars to starch. Illinois Extension says old peas taste starchy and mealy. Minnesota Extension adds that overmature peas have less sweetness with a firm interior. Early picking gives small peas with poor flavor.
Round swollen pods: ready to pick. Wrinkled pod: past peak. Fast cooling: slows sugar loss.
When should you pick peas?
Clemson says harvest pods every 1 to 3 days. Pick shelling peas plus snap peas when pods are plump. Pick before each seed shows and before the pod yellows or turns fibrous. Snow peas are picked while flat with tiny seeds. Minnesota Extension says snap peas are ready when pods are still tender and juicy.
| Option | What it does | Source |
|---|---|---|
| Every 1 to 3 days | Peak quality | Garden peas |
| Plump pods | Shelling peas ready | Garden peas |
| Flat pods | Snow peas ready | Garden peas |
Does heat play a part?
Minnesota Extension gives 55°F to 65°F as good growing temperatures. Clemson says pea plants suffer in summer heat. It suggests planting as soon as the ground can be worked in spring. Clemson also lists Wando plus Lincoln as heat tolerant shelling peas.
Early spring sowing: avoids summer heat. Heat tolerant variety: Wando or Lincoln. 55°F to 65°F: good growing range.
Troubleshooting
Mealy peas: picked late. Harvest every 1 to 3 days.
Yellow fibrous pods: overmature. Harvest earlier.
Bland peas a day after picking: sugar loss. Chill right away.
Kind Seed Co shares these plant notes for growers of all kinds. For more on plant stress see environmental stresses on weed plants and cannabis heat stress. Read underwatering cannabis for watering. See mulch for cannabis for bed care.
Sources
- Growing peas in home gardens, University of Minnesota Extension
- Preparing peas, University of Illinois Extension
- Early June peas, University of Missouri Extension
- Garden peas, Clemson Cooperative Extension, HGIC
FAQ
How fast do peas lose sugar?
Illinois Extension says as much as 40 percent of the sugar converts to starch in a few hours, even in the fridge.
When are snap peas ready?
Minnesota Extension says snap peas are ready when the peas are nearly mature but pods are still tender plus juicy.
How long do fresh peas last?
Illinois Extension says 2 to 3 days in the fridge. Minnesota Extension says a week or more if cooled quickly.
Why plant peas early in spring?
Clemson says pea plants suffer in summer heat plus humidity. Plant as soon as the ground can be worked.
Are smaller peas sweeter?
Not always. Minnesota Extension says small peas are not necessarily sweeter or more tender than larger peas.
