Zea mays
L.
Poaceae
The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.
Common Name: Sweet Corn
Field of corn, closely planted as a biomass crop.
Photograph by: Christian Fischer
Creative Commons Attribution-Share Alike 3.0
Field of corn, closely planted as a biomass crop.
Photograph by: Christian Fischer
Creative Commons Attribution-Share Alike 3.0
Close-up of male flowers producing pollen
Photograph by: Rasbak
Creative Commons Attribution-Share Alike 3.0
Young female flowers (the corn cobs) produced in the leaf axils
Photograph by: burgkirsch
Creative Commons Attribution-Share Alike 2.5
Ripening corncob
Photograph by: Stescha
Creative Commons Attribution-Share Alike 3.0-2.5-2.0-1.0
Ear of corn ready for harvesting
Photograph by: Jamain
Creative Commons Attribution-Share Alike 3.0-2.5-2.0-1.0
Adventitious (prop) roots forminf at base of young plant
Photograph by: Ton Rulkens
Creative Commons Attribution-Share Alike 2.0
General Information
Zea mays is an annual plant that can grow up to 2.00 metres tall.
It is harvested from the wild for local use as a food, medicine and source of materials.
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
Original habitat is obscure, probably S. America or Mexico.
Habitat
Not known in the wild.
Properties
Edibility Rating |     |
Medicinal Rating |    |
Habit | Annual |
Height | 2.00 m |
Growth Rate | Fast |
Pollinators | Wind |
Cultivation Status | Wild |
Cultivation Details
Requires a warm position a well drained soil and ample moisture in the growing season[
16- Title
- New Vegetable Growers Handbook.
- Publication
-
- Author
- Simons.
- Publisher
- Penguin
- Year
- 1977
- ISBN
- 0-14-046-050-0
- Description
- A good guide to growing vegetables in temperate areas, not entirely organic.
,
33- Title
- Rare Vegetables for Garden and Table.
- Publication
-
- Author
- Organ. J.
- Publisher
- Faber
- Year
- 1960
- ISBN
- -
- Description
- Unusual vegetables that can be grown outdoors in Britain. A good guide.
]. Prefers a pH in the range 5.5 to 6.8[
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.
]. Requires a rich soil if it is to do well[
201- Title
- A - Z of Companion Planting.
- Publication
-
- Author
- Allardice.P.
- Publisher
- Cassell Publishers Ltd.
- Year
- 1993
- ISBN
- 0-304-34324-2
- Description
- A well produced and very readable book.
].
Corn is widely cultivated for its edible seed, especially in tropical and warm temperate zones of the world[
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 many named varieties[
132- Title
- Fruits of the Earth.
- Publication
-
- Author
- Bianchini. F., Corbetta. F. and Pistoia. M.
- Publisher
-
- Year
-
- ISBN
-
- Description
- Lovely pictures, a very readable book.
]. Unfortunately, the plant is not frost tolerant and so needs to be started off under glass in Britain if a reasonable crop is to be grown. There are five main types:-
Sweetcorn is of fairly recent development. It has very sweet, soft-skinned grains that can be eaten raw or cooked before they are fully ripe. Cultivars have been developed that can produce a worthwhile crop even in the more northerly latitudes of Britain if a suitable warm sunny sheltered site is chosen[
238- Title
- Encyclopaedia of Herbs and their Uses.
- Publication
-
- Author
- Bown. D.
- Publisher
- Dorling Kindersley, London.
- Year
- 1995
- ISBN
- 0-7513-020-31
- Description
- A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
, K.
Popcorn is a primitive form with hard-skinned grains. When roasted, these grains 'explode' to form the popular snack 'popcorn'[
238- Title
- Encyclopaedia of Herbs and their Uses.
- Publication
-
- Author
- Bown. D.
- Publisher
- Dorling Kindersley, London.
- Year
- 1995
- ISBN
- 0-7513-020-31
- Description
- A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].
Waxy corn is used mainly in the Far East. It has a tapioca-like starch[
238- Title
- Encyclopaedia of Herbs and their Uses.
- Publication
-
- Author
- Bown. D.
- Publisher
- Dorling Kindersley, London.
- Year
- 1995
- ISBN
- 0-7513-020-31
- Description
- A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].
Flint corn, which shrinks on drying, can have white, yellow, purple, red or blue-black grains[
238- Title
- Encyclopaedia of Herbs and their Uses.
- Publication
-
- Author
- Bown. D.
- Publisher
- Dorling Kindersley, London.
- Year
- 1995
- ISBN
- 0-7513-020-31
- Description
- A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. It is not so sweet and also takes longer to mature so is a problematic crop in Britain. There are many other uses for this plant as detailed below.
Dent corn has mostly white to yellow grains. This and Flint corn are widely grown for oils, cornflour, cereals and silage crops.
Corn grows well with early potatoes, legumes, dill, cucurbits and sunflowers[
18- Title
- Companion Plants.
- Publication
-
- Author
- Philbrick H. and Gregg R. B.
- Publisher
- Watkins
- Year
- 1979
- ISBN
- -
- Description
- Details of beneficial and antagonistic relationships between neighbouring plants.
,
20- Title
- Companion Planting for Successful Gardening.
- Publication
-
- Author
- Riotte. L.
- Publisher
- Garden Way, Vermont, USA.
- Year
- 1978
- ISBN
- 0-88266-064-0
- Description
- Fairly good.
,
201- Title
- A - Z of Companion Planting.
- Publication
-
- Author
- Allardice.P.
- Publisher
- Cassell Publishers Ltd.
- Year
- 1993
- ISBN
- 0-304-34324-2
- Description
- A well produced and very readable book.
], it dislikes growing with tomatoes[
20- Title
- Companion Planting for Successful Gardening.
- Publication
-
- Author
- Riotte. L.
- Publisher
- Garden Way, Vermont, USA.
- Year
- 1978
- ISBN
- 0-88266-064-0
- Description
- Fairly good.
].
Edible Uses
Seed - raw or cooked. Corn is one of the most commonly grown foods in the world. The seed can be eaten raw or cooked before it is fully ripe[
1- Title
- RHS Dictionary of Plants plus Supplement. 1956
- Publication
-
- Author
- F. Chittendon.
- Publisher
- Oxford University Press
- Year
- 1951
- ISBN
- -
- Description
- Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
,
2- Title
- Sturtevant's Edible Plants of the World.
- Publication
-
- Author
- Hedrick. U. P.
- Publisher
- Dover Publications
- Year
- 1972
- ISBN
- 0-486-20459-6
- Description
- Lots of entries, quite a lot of information in most entries and references.
,
33- Title
- Rare Vegetables for Garden and Table.
- Publication
-
- Author
- Organ. J.
- Publisher
- Faber
- Year
- 1960
- ISBN
- -
- Description
- Unusual vegetables that can be grown outdoors in Britain. A good guide.
,
34- Title
- The Oxford Book of Food Plants.
- Publication
-
- Author
- Harrison. S. Wallis. M. Masefield. G.
- Publisher
- Oxford University Press
- Year
- 1975
- ISBN
- -
- Description
- Good drawings of some of the more common food plants from around the world. Not much information though.
] and there are varieties especially developed for this purpose (the sweet corns) that have very sweet seeds and are delicious[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
,
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
]. The mature seed can be dried and used whole or ground into a flour. It has a very mild flavour and is used especially as a thickening agent in foods such as custards[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. The starch is often extracted from the grain and used in making confectionery, noodles etc[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. The dried seed of certain varieties can be heated in an oven when they burst to make 'Popcorn'[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. The seed can also be sprouted and used in making uncooked breads and cereals[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. A nutritional analysis is available[
218- Title
- Medicinal Plants of China
- Publication
-
- Author
- Duke. J. A. and Ayensu. E. S.
- Publisher
- Reference Publications, Inc.
- Year
- 1985
- ISBN
- 0-917256-20-4
- Description
- Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
].
The fresh succulent 'silks' (the flowering parts of the cob) can also be eaten[
55- Title
- Eat the Weeds.
- Publication
-
- Author
- Harris. B. C.
- Publisher
- Pivot Health
- Year
- 1973
- ISBN
- -
- Description
- Interesting reading.
,
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
].
An edible oil is obtained from the seed, it is an all-purpose culinary oil that is frequently used as a food in salads and for cooking purposes[
13- Title
- Hamlyn Encyclopaedia of Plants.
- Publication
-
- Author
- Triska. Dr.
- Publisher
- Hamlyn
- Year
- 1975
- ISBN
- 0-600-33545-3
- Description
- Very interesting reading, giving some details of plant uses and quite a lot of folk-lore.
,
46- Title
- Dictionary of Economic Plants.
- Publication
-
- Author
- Uphof. J. C. Th.
- Publisher
- Weinheim
- Year
- 1959
- ISBN
- -
- Description
- An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
,
238- Title
- Encyclopaedia of Herbs and their Uses.
- Publication
-
- Author
- Bown. D.
- Publisher
- Dorling Kindersley, London.
- Year
- 1995
- ISBN
- 0-7513-020-31
- Description
- A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].
The pollen is used as an ingredient of soups[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. Rich in protein, it is harvested by tapping the flowering heads over a flat surface such as a bowl. Harvesting the pollen will actually help to improve fertilisation of the seeds[
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
].
The roasted seed is a coffee substitute[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
].
The pith of the stem is chewed like sugar cane and is sometimes made into a syrup[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
].
Medicinal
Other Uses
A glue is made from the starch in the seed[
13- Title
- Hamlyn Encyclopaedia of Plants.
- Publication
-
- Author
- Triska. Dr.
- Publisher
- Hamlyn
- Year
- 1975
- ISBN
- 0-600-33545-3
- Description
- Very interesting reading, giving some details of plant uses and quite a lot of folk-lore.
]. This starch is also used in cosmetics and the manufacture of glucose[
61- Title
- A Dictionary of Plants Used by Man.
- Publication
-
- Author
- Usher. G.
- Publisher
- Constable
- Year
- 1974
- ISBN
- 0094579202
- Description
- Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
].
A semi-drying oil is obtained from the seed[
57- Title
- Plants for Man.
- Publication
-
- Author
- Schery. R. W.
- Publisher
-
- Year
-
- ISBN
-
- Description
- Fairly readable but not very comprehensive. Deals with plants from around the world.
]. It has many industrial uses, in the manufacture of linoleum, paints, varnishes, soaps etc[
21- Title
- The Herb Book.
- Publication
-
- Author
- Lust. J.
- Publisher
- Bantam books
- Year
- 1983
- ISBN
- 0-553-23827-2
- Description
- Lots of information tightly crammed into a fairly small book.
,
61- Title
- A Dictionary of Plants Used by Man.
- Publication
-
- Author
- Usher. G.
- Publisher
- Constable
- Year
- 1974
- ISBN
- 0094579202
- Description
- Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
].
The corn spathes are used in the production of paper, straw hats and small articles such as little baskets[
74- Title
- Flora of the USSR.
- Publication
-
- Author
- Komarov. V. L.
- Website
- http://www.biodiversitylibrary.org
- Publisher
- Israel Program for Scientific Translation
- Year
- 1968
- ISBN
- -
- Description
- An immense (25 or more large volumes) and not yet completed translation of the Russian flora. Full of information on plant uses and habitats but heavy going for casual readers. It can be downloaded from the Internet.
,
171- Title
- Economic Botany.
- Publication
-
- Author
- Hill. A. F.
- Publisher
- The Maple Press
- Year
- 1952
- ISBN
- -
- Description
- Not very comprehensive, but it is quite readable and goes into some detail about the plants it does cover.
].
A fibre obtained from the stems and seed husks is used for making paper[
189- Title
- Plant Fibres for Papermaking.
- Publication
-
- Author
- Bell. L. A.
- Publisher
- Liliaceae Press
- Year
- 1988
- ISBN
- -
- Description
- A good practical section on how to make paper on a small scale plus details of about 75 species (quite a few of them tropical) that can be used.
]. They are harvested in late summer after the seed has been harvested, they are cut into usable pieces and soaked in clear water for 24 hours. They are then cooked for 2 hours in soda ash and then beaten in a ball mill for 1½ hours in a ball mill. The fibres make a light greenish cream paper[
189- Title
- Plant Fibres for Papermaking.
- Publication
-
- Author
- Bell. L. A.
- Publisher
- Liliaceae Press
- Year
- 1988
- ISBN
- -
- Description
- A good practical section on how to make paper on a small scale plus details of about 75 species (quite a few of them tropical) that can be used.
]. Be careful not to overcook the fibre otherwise it will produce a sticky pulp that is very hard to form into paper[
189- Title
- Plant Fibres for Papermaking.
- Publication
-
- Author
- Bell. L. A.
- Publisher
- Liliaceae Press
- Year
- 1988
- ISBN
- -
- Description
- A good practical section on how to make paper on a small scale plus details of about 75 species (quite a few of them tropical) that can be used.
].
The dried cobs are used as a fuel[
171- Title
- Economic Botany.
- Publication
-
- Author
- Hill. A. F.
- Publisher
- The Maple Press
- Year
- 1952
- ISBN
- -
- Description
- Not very comprehensive, but it is quite readable and goes into some detail about the plants it does cover.
].
The pith of the stems is used as a packing material[
171- Title
- Economic Botany.
- Publication
-
- Author
- Hill. A. F.
- Publisher
- The Maple Press
- Year
- 1952
- ISBN
- -
- Description
- Not very comprehensive, but it is quite readable and goes into some detail about the plants it does cover.
].
Propagation
Seed - sow mid spring in individual pots in a greenhouse. Grow on quickly and plant out after the last expected frosts. A direct outdoor sowing, especially of some of the less sweet varieties, can be tried in May.