Best Job’s Tears Seeds: Grow Your Own Bead Grass

Job’s tears seeds grow into a tall tropical grass that makes hard, glossy, tear-shaped beads. Each bead is naturally hollow with a hole through it. People have strung these beads into jewellery, rosaries and mala for thousands of years. The soft-shelled form, called adlay, is also eaten as a grain.

Authority references: the Wikipedia entry on Job’s tears and the NC State Extension plant profile.

Buy Job’s tears seeds

Ready to grow your own bead grass? Job’s tears seeds are sold by craft-seed and heirloom-grain specialists. Compare a few sellers below for the best value.

Why grow Job’s tears?

Job’s tears is one of the most useful grasses you can grow. It earns its place three ways at once. Few plants give you craft material, food and beauty together.

First, the beads. They form on the plant ready to string, with a natural hole through the centre. You simply harvest, dry and thread them.

Second, the grain. The soft-shelled form is adlay, sometimes called Chinese pearl barley. It is cooked as a cereal in porridge and soups across Asia.

Third, the look. This is a bold, leafy grass with arching foliage and dangling bead clusters. It makes a fast summer screen or a striking border accent. For other tall accent grasses, see our pennisetum seeds guide and panicum seeds guide.

Nature’s beads: jewellery, rosaries & mala

This is what makes Job’s tears special. The “beads” are hard seed cases called involucres. They start green, then harden and turn pearly grey, white, black or mottled.

Each bead has a natural channel running through it. A gentle poke with a needle clears it, so no drilling is needed. That makes them perfect for beginners and children’s craft projects.

People have used these beads for thousands of years. They appear in necklaces, prayer beads, rosaries and mala. They have also been strung into curtains, charms and basket trim.

For the best beads, harvest them green to grey while still glossy. Beads left to fully ripen for grain look duller. So grow a few extra plants if you want both craft beads and grain. Pair the dried stems with everlasting flowers like craspedia (billy buttons) and rhodanthe for natural decor.

Coix vs other ornamental grasses

Most ornamental grasses are grown for airy plumes or soft texture. Job’s tears is different. It is a tall, broad-leaved cereal grass grown for hard beads and grain.

So pick Job’s tears when you want a project, not just a plume. It is the bead and grain grass of the group. For more airy options, browse our hair grass guide.

History, origin & native range

Job’s tears is native to tropical and subtropical Asia. Its range runs from the Indian subcontinent through Southeast Asia to Taiwan and Malaysia. It reached northern China and India in remote antiquity.

The plant has long been part of life in North-East India. It carries local names like Thangnang in Manipur and Tungrel in Nagaland. Hill communities in the Karbi region of Assam still grow it for grain and beads.

The beads spread the plant worldwide. Traders and travellers carried the strung seeds far beyond Asia. Today Job’s tears has naturalised across the southern United States, South America and Africa.

The name comes from the tear shape of the seed cases. Different cultures linked the beads to prayer and protection. That history is why it remains a craft favourite today.

Best season & when to sow

Job’s tears needs a long, warm growing season. It takes roughly four to six months to ripen its beads. So timing matters in cooler regions.

In the US, sow outdoors after the last frost when the soil warms. In short-summer zones, start seeds indoors four to six weeks earlier. Then transplant once nights stay mild.

In India, this is a warm-season monsoon crop. Sow with the onset of warm weather, around March to June. The summer rains suit it well, especially in the plains and warm hills.

Aim to sow when soil reaches about 20-25°C. Cold soil rots the seed and slows germination badly.

How to grow Job’s tears from seed

Job’s tears is easy to grow from seed if you start it right. Here is how to plant it step by step.

1. Soak first. Soak the seeds in warm water for 24 hours. This softens the hard case and speeds germination.
2. Sow shallow. Plant seeds about 1.5 cm (a quarter inch) deep in warm, moist soil.
3. Space well. Thin or space plants 30-45 cm apart. They grow tall and need room.
4. Keep moist. Water regularly. Germination takes two to four weeks.
5. Weed early. Hoe around young seedlings while they are small. This helps them tiller and bulk up.

You can also start seeds in pots indoors. Harden off the seedlings before moving them outside. For more seed-starting basics, see our cosmos growing guide and zinnia guide.

Sun, soil, watering & feeding

Give Job’s tears full sun for the best growth and beads. It will take a little light shade. But sun gives sturdier stems.

It likes moist, fertile soil and dislikes drying out. Unlike many ornamental grasses, it enjoys plenty of water. It even tolerates damp ground near ponds or ditches.

A slightly acidic, loamy soil with compost is ideal. Mulch helps hold moisture in hot weather. Heavy feeding is not needed, though compost helps it grow tall.

Ease off watering a little as the bead heads form and ripen. A drier finish helps the beads harden well. Then you can harvest clean, glossy beads.

Harvesting the beads (and grain)

Harvest timing for Job’s tears beads depends on what you want. Beads for craft and grain for food come off at different stages.

For jewellery, pick the beads while green to grey and glossy. They are at their prettiest before they fully ripen. Dry them for about two weeks before stringing.

For grain, wait until the beads turn brown and the plant dries down. The darkest, hardest beads have the best viability for saving and the fullest kernels. This is the soft-shelled adlay used as a cereal.

Harvest usually comes around 110 days after sowing. Strip the beads by hand and spread them to dry fully. Store dry beads in a cool, airtight jar.

Common pests & problems

Job’s tears is tough and rarely troubled. A few issues can show up in some seasons. Watch for them and act early.

Grasshoppers, flea beetles and rice bugs may chew the leaves. Healthy, well-watered plants shrug off light damage. Hand-pick or hose off small infestations.

In wet seasons, fungal leaf blight or smut can appear. Space plants for airflow and avoid wetting the foliage late in the day. Remove badly affected leaves.

The main thing to manage is self-seeding. In frost-free tropical areas it can self-sow freely and turn weedy. So harvest the beads before they drop, or grow it in a contained bed. In cold-winter regions, frost kills it, so it never spreads.

Frequently asked questions