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Useful Tropical Plants

Ipomoea batatas

(L.) Poir.

Convolvulaceae

+ Synonyms

Convolvulus batatas L.

Ipomoea apiculata M.Martens & Galeotti

Common Name: Sweet Potato

Ipomoea batatas
White and red forms of the roots
Photograph by: CostaPPPR
Creative Commons License
Ipomoea batatas Ipomoea batatas Ipomoea batatas Ipomoea batatas Ipomoea batatas

General Information

Sweet potato is a vigorous scrambling or climbing perennial plant producing stems 4 metres or more long from underground tubers. These stems can scramble over the ground or twine into other plants for support. Where the stems lay along the soil they will root at the nodes and form tubers[
264
Title
Vegetables
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Macmillan Reference Books, London.
Year
1995
ISBN
0 333 62640 0
Description
Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
]. The plant was developed in cultivation, probably from the central American species Ipomoea trifida[
264
Title
Vegetables
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Macmillan Reference Books, London.
Year
1995
ISBN
0 333 62640 0
Description
Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
].
One of the most widely grown root crops in the tropics, where it is a staple food. It is one of only seven world food crops with an annual production of more than 100 million metric tons[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. The root is also used as a source of an industrial starch[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Known Hazards

None known

Botanical References

200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

Range

Pantropical.

Habitat

Derived in cultivation, probably from Ipomoea trifida, this species is not known in a truly wild situation.

Properties

Weed PotentialYes
Edibility Rating *  *  *  *  *
Medicinal Rating *  *
Other Uses Rating *  *  *
HabitPerennial Climber
Height1.00 m
Growth RateFast
Cultivation StatusCultivated

Cultivation Details

Sweet potato is a plant of the tropics, but can also be grown in the subtropics and, if there is a sufficient growing season of 110 - 170 days, as an annual crop in warmer parts of the temperate zone. It is grown in the tropics at elevations up to 2,800 metres. It grows best in areas where annual daytime temperatures are within the range 18 - 28°c, but can tolerate 10 - 38°c[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. When dormant, the roots can survive temperatures down to about 1°c, but young growth can be killed by temperatures of 5°c[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It prefers a mean annual rainfall in the range 750 - 2,000mm, but tolerates 350 - 5,000mm[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
An easily grown plant, it prefers a well-drained, sandy loam soil and requires a sunny position[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
264
Title
Vegetables
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Macmillan Reference Books, London.
Year
1995
ISBN
0 333 62640 0
Description
Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
]. Ample potash in the soil is essential for a good crop[
264
Title
Vegetables
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Macmillan Reference Books, London.
Year
1995
ISBN
0 333 62640 0
Description
Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
]. Prefers a pH in the range 5 - 7, tolerating 4 - 8.7[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. A low humidity as the plants reach maturity is beneficial[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Plants grow very vigorously in the tropics. They have escaped from cultivation in some areas and become invasive[
296
Title
Tropical Food Gardens
Publication
 
Author
Norrington. L.
Publisher
Bloomings Books (Melbourne)
Year
2001
ISBN
1-876473-41-x
Description
Excellent little book giving some basic information on a range of plants.
,
305
Title
Pacific Island Ecosystems at Risk
Publication
 
Author
 
Website
http://www.hear.org/pier/scientificnames/index.html
Publisher
 
Year
0
ISBN
 
Description
A very good website detailing weed species that have been introduced into the Pacific Islands.
].
Unlike many root crops, the sweet potato begins to store starch at an early age, making early harvests possible[
298
Title
Edible Leaves of the Tropics
Publication
 
Author
Martin. F. W.; Ruberte. R. M. & Meitzner. L. S.
Publisher
Echo. USA.
Year
1998
ISBN
0-9653360-1-8
Description
A terse guide, giving reasonable detail on the more common leaf crops and brief information on a wide range of lesser known plants.
]. It is one of the most efficient plants to capture the energy of the sun as calories[
298
Title
Edible Leaves of the Tropics
Publication
 
Author
Martin. F. W.; Ruberte. R. M. & Meitzner. L. S.
Publisher
Echo. USA.
Year
1998
ISBN
0-9653360-1-8
Description
A terse guide, giving reasonable detail on the more common leaf crops and brief information on a wide range of lesser known plants.
].
The plant can mature a crop within 2 months in tropical areas, though at least three months are required in sub-tropical regions[
264
Title
Vegetables
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Macmillan Reference Books, London.
Year
1995
ISBN
0 333 62640 0
Description
Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
].
Optimum yields vary from 17.5 - 27.5 tonnes per hectare depending on the cultivar and growing conditions, while average yields are 5 tonnes per hectare in Africa, 10 tonnes in South America and 16 tonnes in Asia. The world highest production yield at 80 tonnes has been obtained in Israel[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
A short-day plant, it requires less than 11 hours of sunlight per day to initiate flowering[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. However, day length variation appears to have little effect upon tuber production[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Edible Uses

Root - cooked[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Sweet and fleshy, it is a delicious staple food and is also very nutritious providing a rich source of vitamins and minerals[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. There are cultivars with soft, moist flesh and also forms with a more dry flesh[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. There are also less sweet cultivars, bred for industrial production of starch[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. In order for the roots to store through the winter, they need to be cured in the sunshine at temperatures around 25°c for about a week before being stored at around 14°c[
264
Title
Vegetables
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Macmillan Reference Books, London.
Year
1995
ISBN
0 333 62640 0
Description
Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
].

Young shoot tips[
264
Title
Vegetables
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Macmillan Reference Books, London.
Year
1995
ISBN
0 333 62640 0
Description
Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
,
272
Title
Plants and People of Nepal
Publication
 
Author
Manandhar. N. P.
Publisher
Timber Press. Oregon.
Year
2002
ISBN
0-88192-527-6
Description
Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.
]. Cooked[
298
Title
Edible Leaves of the Tropics
Publication
 
Author
Martin. F. W.; Ruberte. R. M. & Meitzner. L. S.
Publisher
Echo. USA.
Year
1998
ISBN
0-9653360-1-8
Description
A terse guide, giving reasonable detail on the more common leaf crops and brief information on a wide range of lesser known plants.
]. Used as a spinach[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
].

Medicinal

The leaves are used to treat measles[
348
Title
Medicinal Plants of the Guianas
Publication
 
Author
DeFilipps, R. A.; Maina, S. L.; & Crepin, J.
Website
http://botany.si.edu/bdg/medicinal/index.html
Publisher
Smithsonian Museum
Year
0
ISBN
 
Description
A down-loadable PDF document of a book in pre-publication awaiting illustration. An excellent, if rather terse, guide to the traditional medicinal uses of the plants of the region
].

Other Uses

The root is a source of starch[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Sweet potato tubers are being examined as a valuable raw material for producing alcohol bio-fuel[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

Propagation

Pre-soak the seed for 12 hours in warm water, or scarify the seed, and sow in individual pots in a lightly shaded position. The seed usually germinates in 1 - 3 weeks at 22°c. Plants are extremely resentful of root disturbance, even when they are quite small, and should be moved with care. Seedlings can be very variable and are likely to be less productive than vegetatively produced plants[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Stem cuttings obtained from terminal shoots[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Remove the lower leaves and insert the cuttings to half their depth in individual pots.
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2019-10-23. <tropical.theferns.info/viewtropical.php?id=Ipomoea+batatas>

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