Belonging to the Zea genus, Corn has a botanical name of Zea mays.
When ripe, fruit appear in these approximate colours: Canary yellow and White. Leaves appear approximately as a Ao green
It is an edible grass / vegetable that typically grows as an annual, which is defined as a plant that matures and completes its lifecycle over the course of a single year.
Corn is known for its erect habit and growing to a height of approximately 2.00 metres (6.50 feet). This plant tends to be ready for harvesting by late summer.
Mexico is believed to be where Corn originates from.
Corn needs a moderate amount of maintenance, so some level of previous experience comes in handy when growing this plant. Ensure that you are aware of the soil, sun, ph and water requirements for this plant and keep an eye out for pests.
This plant info is provided by the myfolia gardener's wiki. All details about Corn have been kindly provided by our members.
Corn is wind pollinated, and because of this at least 6 plants should be grown together to ensure a harvest. Do not plant in an area that is particularly sheltered from the wind to encourage pollination.
You can hand pollinate the corn by snapping off one of the hairy stems and rubbing it against the hairy stems of the nearby plants. Called “tickling the corn”.
You can also hand pollinate by shaking pollen off the top (tassel) and applying this yellow powder to the silks (hairy part of ears). The best time to do this is after any morning dew has dried but before the sun is directly overhead. In this way, even a single plant can produce a crop.
When the stalks at the top of the ear turn brown and dry, and the ear begins to droop a little, the corn is ready to harvest.
Corn requires a lot of nutrients, plant with compost or manure, and add a good fertilizer (eg. fishbone meal).
Try to plant in a location that enjoys full sun and remember to water often. Use Zone 3 - Zone 9 as your guideline for the appropriate climate for this plant. A soil ph of between 6.5 and 7.5 is ideal for Corn as it does best in weakly acidic soil - weakly alkaline soil. Keep in mind when planting that Corn is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.
See our list of companion Plants for Corn to see which plants you should plant in close proximity to encourage growth.
Seeds will easily rot if the soil temperature is not warm enough for germination. To prevent this sow early indoors starting around late April – early May (depending upon your zone).Try to aim for a seed spacing of at least 11.7 inches (30.0 cm) and sow at a depth of around 1.95 inches (5.0 cm). Soil temperature should be kept higher than 18°C / 64°F to ensure good germination.
By our calculations*, you should look at sowing Corn about 10 days after your last frost date .
After transplanting ensure the water is kept moist evenly. Do not let the soil dry out excessively until the corn is established. It is best to transplant corn in the evening to avoid drying out.As Corn is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.
By our calculations*, you should look at planting out Corn about 10 days after your last frost date.
Keep at constant temperature around 5°C. Do not save seed from hybrid corn.
Seed viability is two years.
These estimates for how long Corn takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Average 8 days | Min 2 days | Max 19 days (117)
Average 11 days | Min 5 days | Max 30 days (7)
Average 69 days | Min 52 days | Max 111 days (9)
Our when to plant Corn estimates are relative to your last frost date.
The term maize derives from the Spanish form (maíz) of the indigenous Taino term for the plant. Corn used to be a term considered to include any grain, and is still used in this way in many countries (including the United Kingdom). In Canada, Australia, and the US the term “corn” is now exclusively used to denote Maize.
Corn/maize has 16 different genes for seed color, plus many more that influence kernel shape and apperance. Almost any color of the rainbow is possible.
Landrace corn is best maintained in large (100+ plants) populations. These are a diverse mixture of lines and the most variable.
Hybrid corn is produced by crossing two or more specific lines, resulting in plants with improved vigor. These plants are generally uniform in both size and apperance.
Specific lines of corn (e.g. shrunken, sugary) are generally not grown in home gardens. These are used to produce hybrid and GMO corn for commercial sale.
Sweet corn, Popcorn
Zea mays L. ssp. mays
One of the sweetest varieties I’ve ever eaten and its my favorite. Requires plenty of water and TLC to prevent the dreaded corn earworm but it’s worth the effort if you have the space in your garden.
Sprocket1980 about growing Corn - Sweet (Kandy Korn Hybrid) 
This was fun with no expectations at all; would plant again.
naturedance about growing Squirrel Food Corn
Performed very well, 2 well filled ears per stalk in 70 days. I would grow again if I still lived in NC.
angelchrome about growing Sweetcorn 'Luscious Hybrid'