Red amaranth, a striking and versatile plant, is increasingly popular in Australian gardens and kitchens. Known for its vibrant red foliage and nutritional benefits, red amaranth (often Amaranthus tricolor or varieties like ‘Red Garnet’) is both an attractive ornamental and a nutritious leafy green. Whether you’re a home gardener, a microgreen enthusiast, or a foodie, here’s a comprehensive guide to red amaranth in Australia.
What Is Red Amaranth?
Red amaranth is a variety of amaranth distinguished by its deep red to burgundy leaves and stems. It’s native to tropical regions such as India and East Asia but grows well in many parts of Australia, especially during warmer months. The plant is valued for its edible leaves, which have a mild earthy flavor, and its use as a garnish or vegetable in various cuisines.
Growing Red Amaranth in Australia
Red amaranth thrives in warm temperatures, ideally around 24ºC or higher, making spring and summer the best seasons for cultivation in Australia. It prefers:
- Sunlight: Full sun is ideal, as the plant does not tolerate shade well.
- Soil: Well-drained, rich soils with good organic matter content. It tolerates a range of soil types, including some acidity.
- Water: Regular watering is important, especially in containers or during dry spells, but avoid waterlogging.
- Protection: Because red amaranth has delicate leaves and stems, shelter from strong winds is beneficial.
For microgreen growers, red amaranth is a popular choice due to its vibrant color and quick growth. Using trays with coir peat or organic soil, maintaining temperatures above 22ºC, and careful watering (sometimes with hydrogen peroxide mixtures to prevent disease) can help produce lush microgreens in 7-14 days.
Planting Tips
- Sow seeds about 15-25 mm deep, as they don’t germinate well when exposed to light.
- Seeds can be started indoors in seed trays and transplanted after frost risk has passed.
- The plant is self-fertile and can self-seed, so you may find new plants growing in your garden year after year.
- Red amaranth grows quickly and can reach up to 1-2 meters tall under ideal conditions.
Culinary Uses
In Australia, red amaranth leaves are enjoyed as a nutritious leafy vegetable:
- Salads and Garnishes: Young leaves and microgreens add color and nutrition.
- Cooked Greens: Similar to spinach, they can be sautéed, steamed, or added to soups and stir-fries.
- Traditional Dishes: Used in multicultural Australian kitchens, especially in Asian, African, and Caribbean recipes.
Nutritional Benefits
Red amaranth leaves are rich in vitamins A and C, iron, calcium, and antioxidants. They provide dietary fiber and are naturally gluten-free, making them a healthy addition to diverse diets.
Red Amaranth as a Weed in Australia
While cultivated red amaranth is prized, some Amaranthus species, including redroot amaranth, are considered weeds in Australian agriculture. These species can grow rapidly, produce abundant seeds, and compete with crops, especially in vegetable production systems. Proper garden management and awareness help distinguish beneficial red amaranth from invasive relatives.
Where to Buy Red Amaranth Seeds in Australia
Several Australian seed suppliers and nurseries offer red amaranth varieties, including:
- The Seed Collection – Red Garnet Amaranth
- Herb Cottage – Organic Edible Red Amaranth
- Local garden centres and online retailers also stock seeds suitable for home growing.
Red amaranth is a beautiful, nutritious, and relatively easy-to-grow plant that suits Australian gardens and kitchens well. Whether you’re growing it for vibrant microgreens, fresh leafy greens, or ornamental appeal, red amaranth adds color and health benefits to your lifestyle. With the right conditions and care, it can flourish in many parts of Australia, bringing a touch of tropical vibrancy to your home