Job's Tears
Also known as: Chinese pearl barley · Hato mugi · Adlay · Coix lacryma-jobi
2 types of job's tears
When & where
Germination
Spacing & depth
How to plant
Soak seed 48 hrs. Tall corn-like grass reaches 4–6 ft. Small tear-shaped seeds harden and turn pearly grey — pick when they easily snap off. Traditionally strung as beads (rosaries, jewelry) and cooked as a nutty barley-like grain.
Grower's tip
Beads have a natural hole through the middle — no drilling needed. In Japan, roasted hato mugi is brewed into a barley-like tea.
Soil preferences
Firm, well-drained loam.
6.0–7.0
A modest nitrogen source in spring for wheat/rye; teff and rice prefer more.
Watering
1 in per week during establishment. Most small grains are drought-tolerant once headed out.
Overhead is fine. Rice paddies are the exception — constant flood.
Overwatered: lodging (flopped stems), rust. Underwatered: short heads, shriveled grain.
Prefers top-watering — Top-water (overhead or rain) — grains are wind-pollinated and tolerate wet foliage. Water deeply and infrequently.
Temperature tolerance
60–80°F (15–27°C)
40–65°F (4–18°C)
Winter grains (winter wheat, rye, spelt) overwinter through hard freezes. Spring grains and teff are frost-tender.
Container growing
Not recommended in containers
Grains need broadcast area — even a 10x10 ft patch yields a meaningful loaf's worth of flour.
Detailed harvesting
Cut whole stalks with a sickle or hedge shears when heads are straw-dry and grain dents but doesn't smash. Shock or hang to cure 1–2 weeks.
Post-harvest storage & preservation
Thresh in a pillowcase or against a screen; winnow chaff in front of a fan. Store cool and dry in sealed jars. Freeze 3 days to kill any weevils.
Culinary, medicinal & other uses
Bake, brew, mill for flour, sprout, or add to grain bowls. Straw is mulch or bedding.
Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.
Seed saving
Most grains self-pollinate before the head fully emerges.
20 ft between varieties is enough for most.
The grain IS the seed — save cleaned kernels from your best-headed plants for next year.
Your zone's planting calendar
Pick your USDA hardiness zone and we'll estimate the key dates for job's tears in your area. These are regional averages — always check your own last-frost forecast before sowing.
From your kitchen — grow job's tears from what you already have
Save whole ripe heads — grains are just grasses gone to seed.
- 1Harvest heads when they're straw-tan and the grain is hard (bite test: dents, doesn't smash).
- 2Cut whole stalks with 6 in of straw and shock or hang to cure 1–2 weeks.
- 3Thresh by rubbing heads inside a pillowcase or against a screen.
- 4Winnow by pouring in front of a fan; store cool and dry.
Storage: 2–4 years — grain seed loses vigor faster than most.
My Job's Tears notes
Job's Tears seeds on hand
Track packets and loose seeds you already have. Private to your account.
Par level — leave at 0 for no alert. Anything below par shows on Seed Starting and your shopping list.
Order more seeds
Running low? Reorder from one of these seed stores.
Loading…