Amaranthus spinosus Seeds | Spiny Amaranth

Amaranthus spinosus seed

LATIN NAME: Amaranthus spinosus

COMMON NAME: Spiny Amaranth

Plant Profile

Spiny Amaranth (Amaranthus spinosus) is a distinctive species. During flowering it gives bees and other insects a dependable food source. These traits together are what have kept the plant in gardens for so long.

Science & Biotechnology

Within the Amaranthus group, Amaranthus spinosus is of continuing interest to researchers working on plant diversity, seed biology and the selection of improved garden forms. Spiny amaranth’s defensive spines have made it a subject of interest in plant defence research examining how herbivory pressure has shaped physical deterrents across the wider Amaranthus genus, since most related species lack this trait entirely. In practice, its long garden history means the grower inherits a plant of known and dependable habits.

Uses & Benefits

In the garden, Spiny Amaranth earns its place in borders, containers and mixed plantings, and it also rewards growers who raise plants for cutting, drying or kitchen use. Despite its spiny stems, young, tender leaves of spiny amaranth are edible and are traditionally harvested and cooked as a green vegetable in parts of Asia and Africa, typically picked before plant matures and its spines toughen. In many regions, however, it is more commonly regarded as a troublesome weed of cultivated and disturbed ground, its spines making it additionally unpleasant to handle or graze compared with unarmed related species. Beyond the establishment year, its needs are simple and few.

Amaranth is a dual-purpose plant: the grain-like seeds are a complete protein food rich in lysine, and the leaves are a nutritious green eaten across the tropics. Folk medicine has long used the plant as a mild astringent.

Growing from Seed

Spiny Amaranth grows readily from seed. Sow fine seed onto surface of a loose, well-drained mix without covering it deeply, keeping conditions warm and consistently moist. Full sun suits this fast-growing tropical annual well, and if harvesting leaves for food, pick them while young and tender, well before the plant’s characteristic spines have hardened. Sow evenly over the surface and cover lightly into a loose, well-drained seed compost, water in gently, and keep the sowing in full sun with steady moisture. Grow the youngsters on steadily in pots until well rooted, then move them to their final positions.

Our Take

Spiny Amaranth has real presence in the garden without demanding much in return. Even moisture while the seed is chitting is the main thing; afterwards it largely looks after itself.

Herb Seeds