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Last edited on October 16, 2026. View history

Tampala

Also known as callaloo (en) Joseph's coat (en)

A variety of amaranth

How to sow tampala: Direct seed, thin seedlings to 15cm

Sun requirement for tampala: Plant in Full Sun

Amaranth is a tall annual herb with clusters of dark burgundy flowers grown for it's seeds and leaves. Young greens have a flavor similar to spinach, and seeds are high in protein like Quinoa. Amaranth seeds are often ground into flour and used as a grain alternative. The plant is heat and drought-resistant but lacks a high frost tolerance. Other members of the Amaranthus genus are used as ornamentals. Amaranthus retroflexus (commonly known as Pigweed) was cultivated by Native Americans for it's grain and is currently a widespread weed in North America.

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Tampala facts

Lifespan

Annual living and reproducing in a single year or less
Optimal temperature 22–30 °C
Absolute temperature 8–45 °C
FAO EcoCrop
Optimal rainfall 1200–1500 mm/year
Absolute rainfall 300–2700 mm/year
FAO EcoCrop
Optimal soil pH 5.5–7.5
Absolute soil pH 4.3–8
FAO EcoCrop

Crop cycle

30–300 days
FAO EcoCrop

Max altitude

800 m
FAO EcoCrop

Optimal light

very bright
FAO EcoCrop
What are growing degree days?

A plant grows with warmth, not with days. A growing degree day is one day's worth of useful warmth: how many degrees the day's average temperature is above the lowest temperature the crop grows at. Add them up from planting and you know how far along the crop is, whatever the calendar says.

Say that lowest temperature is 10°C. A day averaging 17°C gives 7 growing degree days. A day averaging 8°C gives none, as it is too cold for the crop to grow. That is why the same lettuce takes about 50 days in a summer and 90 in an autumn: it needs the same total warmth either way.

For tampala, the FAO EcoCrop database gives a lowest growing temperature of 8°C and a shortest growing cycle of 30 days at its best temperature, about 540 growing degree days to a first harvest.

Where you've told us where your garden is, we use this and the weather there to predict when your tampala will be ready to harvest. We don't use it for how long a plant lives or when it finishes: we go by what members have logged for that.

Photos

Tampala crops

Video

Where tampala grow

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Tampala harvests

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Time to harvest

If sown now, expect a first harvest in about 30 to 300 days.

From the growing cycle in the FAO EcoCrop database, which is the same wherever it is grown.

Ecological requirements

Data from the FAO EcoCrop database for Amaranthus tricolor L.

Family / Taxonomy Magnoliopsida
Caryophyllidae
Caryophyllales
Amaranthaceae
Killing temperature growth: 0 °C, rest: 4 °C
Life form herb
Life span annual
Habit erect
Optimal soil depth medium (50-150 cm)
Optimal soil texture heavy, medium, light, organic
Optimal soil fertility high
Optimal soil drainage well (dry spells)
Optimal soil salinity low (<4 dS/m)
Photoperiod short day (<12 hours), neutral day (12-14 hours), long day (>14 hours)

Learn more about tampala

Resources outside Growstuff.