Cassava PLANT – Heirloom – Yellow Sweet Cassava – Manioc – Yuca – Manihot esculenta – The Ultimate Potato Substitute
Bring one of the world’s most productive and resilient food crops into your garden with this heirloom Yellow Sweet Cassava plant (Manihot esculenta), also known as Manioc or Yuca. This remarkable tropical root vegetable is the ultimate potato substitute, producing large, starchy tubers that can be boiled, fried, roasted, or processed into flour and starch. It is incredibly easy to grow, highly drought-tolerant once established, and thrives in both full sun and partial shade.
This particular variety is Sweet Cassava, which, according to Food Standards Australia New Zealand (FSANZ), is the only type permitted for culinary use in Australia and New Zealand. Bitter cassava, which contains much higher levels of naturally occurring cyanogenic compounds, is listed as a prohibited botanical and is not commercially traded. This makes it essential to source your plants from a reliable grower – and you have found one.
The Yellow Sweet Cassava is a vigorous, woody perennial shrub that grows 1–3 metres tall with distinctive palmate, hand-like leaves. It produces long, tuberous roots that develop underground and are ready to harvest in about 10–12 months. This is a true set-and-forget crop – plant it, keep the weeds down while it establishes, and harvest a bounty of homegrown carbohydrates. It also grows beautifully in large pots, making it accessible to gardeners across Australia.
Uses:
Potato Substitute: The cooked tubers have a delicate, slightly nutty flavour and a texture similar to potato. Use them boiled, mashed, roasted, fried into chips and fries, or added to stews and curries.
Cassava Flour & Starch: The tubers can be dried and ground into a gluten-free flour, perfect for baking or thickening soups and sauces. The extracted starch (tapioca) is used in puddings and desserts.
Edible Leaves: The young leaves are edible but must be boiled thoroughly for at least 15 minutes and the cooking water discarded before use. They are a delicious, nutritious addition to soups and curries.
Animal Fodder: Leaves and tubers can be fed to chickens, pigs, and other livestock.
Living Fence & Windbreak: The tall, woody growth provides a natural screen, windbreak, and shade for more delicate plants.
Chop & Drop Mulch: The abundant foliage provides an excellent ongoing source of organic matter for building soil fertility.
Nutrients & Health Benefits:
Cassava is a carbohydrate-rich staple food that has sustained civilisations for thousands of years. Research has highlighted its impressive nutritional profile and health-promoting properties.
High in Carbohydrates: Tubers contain 80–85% carbohydrates on a dry weight basis, providing a rich and cheap source of energy.
Rich in Antioxidants: Yellow cassava varieties contain carotenoids, including beta-carotene and lycopene, along with phenolic compounds that contribute antioxidant activity. One study found that boiled yellow cassava samples showed significant antioxidant activity, and the yellow and pinkish varieties contain sufficient phenolic compounds and minerals to be used as nutraceuticals.
Minerals: Contains important minerals including zinc, which supports immune function and wound healing.
Leaves are Nutrient-Dense: Cassava leaves have high antioxidant and anti-inflammatory power, suggesting they could be used as food or nutraceutical products. They are also rich in protein and vitamins.
Gluten-Free: Cassava flour is naturally gluten-free, making it suitable for those with gluten sensitivities or coeliac disease.
⚠️ Important Safety Note – Please Read:
Cassava must never be eaten raw. All cassava, including sweet varieties, contains naturally occurring cyanogenic glycosides (primarily linamarin). According to FSANZ, cassava must be peeled, cut into pieces, rinsed, and fully cooked before consumption. The cooking water should be discarded. The leaves must be boiled thoroughly for at least 15 minutes and the water discarded. Bitter cassava varieties (those with hydrocyanic acid content greater than 50 mg/kg) are prohibited in Australia and New Zealand. This is a sweet variety, but proper preparation is still essential. Always do your own research and follow trusted food safety guidelines.
Note: Always consult a qualified healthcare provider before using any plant medicinally or making significant dietary changes. The information provided is for educational purposes only.
Growing Conditions & Planting Tips:
Cassava is remarkably resilient and thrives in conditions where many other crops fail. Follow these guidelines for success.
Climate: Best suited for tropical and subtropical regions (QLD, NT, northern NSW). It thrives in temperatures between 25–35°C and growth stops below 15°C. It is frost-sensitive – in cooler areas, grow it in a large pot and move it to a sheltered or indoor position during winter. It needs at least 8–10 months of frost-free weather to produce good-sized tubers.
Position: Prefers full sun – at least 6–8 hours of direct sunlight daily. It is highly sensitive to shade, which leads to low yields. Partial shade is tolerated but will reduce harvest size.
Soil: Grows in a wide range of soils, from deep sands to heavy clays, and tolerates acidic soils well (pH 4.5–7.5, with 5.5–6.5 being ideal). Well-drained sandy loams are preferred. It does not like waterlogged conditions.
Watering: Water regularly during establishment. Once mature, it is highly drought-tolerant and can survive 3–6 month dry spells. Water deeply but infrequently.
Fertilising: Cassava grows in poor soils, but a boost of well-rotted manure or compost before planting will significantly improve yields. It generally does not need additional feeding.
Spacing: Plant in single rows with about 1 metre between plants and 1 metre between rows.
Weed Control: Weed control is critical in the first 3–4 months. Mulching helps conserve moisture and suppress weeds until the canopy closes.
Container Growing: Grows well in large pots (40L+). Use a quality potting mix with good drainage. Container-grown plants will need more frequent watering and occasional feeding.
Companion Planting: Cassava works well in mixed cropping systems. Good companions include beans, groundnuts, and melons.
Harvesting: Early varieties are ready in 8–10 months. Signs of maturity include yellowing leaves, woody stems, and easy root separation from the soil. Carefully dig around the plant and lift the tubers with a garden fork.
Care After Receiving Your Plant:
Your Cassava plant has been grown with love. Follow these steps for a smooth transition:
Unpack immediately – Remove the plant from packaging. Check the soil; if dry, give it a light drink.
Rest & recover – Place the plant in a sheltered, shaded spot out of strong wind for 2–3 days to reduce transplant shock.
Slow sun introduction – Most of our plants grow in partial shade. Introduce to full sun gradually over 5–7 days to avoid leaf burn.
Transplant – Re-pot into a larger container (at least 40L) or plant directly into the ground when roots fill the current pot. Space multiple plants about 1 metre apart.
Planting depth – Dig a hole slightly larger than the root ball. Plant at the same depth it was in the pot.
Water in well – Give it a deep, thorough watering straight after planting. Thereafter, water regularly until established.
Mulch generously – A thick layer up to 10 cm of sugar cane, straw, or leaf mulch helps retain moisture and suppress weeds, but keep it away from the stem.
No fertiliser for 2 weeks – Let the plant settle before feeding.
What You Will Receive:
One young, healthy Yellow Sweet Cassava plant (Manihot esculenta) in a small nursery pot, grown heirloom, untreated, and with love in my permaculture food forest (Pacific Haven, QLD).
Shipping & Important Notes:
Dispatch: We usually send plants on Mondays to ensure they arrive fresh and before the weekend.
Shipping locations: Sending within Australia only, excluding Norfolk Island, NT, SA, TAS, and WA.
Pickup: Available by appointment from Pacific Haven, QLD.
Please Note: All cassava must be peeled and fully cooked before consumption. Raw cassava is toxic. The leaves must be boiled thoroughly for at least 15 minutes and the water discarded. Do your own research before trying any new foods. Also refer to our full disclaimer in the footer of this page.
