Students for Stewardship The Cork Board
← Back to the library

Tomato

Solanum lycopersicum (so-LAY-num ly-koh-PER-see-kum)

Family: Solanaceae Unknown Herbaceous (3-15 ft)

Tomatoes are an edible, annual or herbaceous perennial warm-season vegetable in the nightshade family (Solanaceae). The genus name, Solanum, is the Latin word solamen , which means "comforting or soothing." The species epithet means "wolf peach." Tomatoes were called "wolf peaches" when they came to Europe. This originated from a German legend that witches and sorcerers used the fruits in potions to turn themselves into werewolves. The word "tomato" originates from the Spanish word tomate , which was borrowed from the Nahuatl word tomatl. The French call the tomato the pomme d'amour or 'Love Apple,' because they believed it was an aphrodisiac. Tomatoes need full sun and prefer moist, loamy and slightly acidic soil with a pH of 5.8 to 6.8. Keep the soil consistently watered to avoid blossom end rot and splitting fruit. While they need decent nutrition, too much fertilizer, especially nitrogen, can lead to extensive leafy growth with little fruit production. They also prefer temperatures between 70 to 75 degrees Fahrenheit. The use of cages or staking the plants will keep the stems from breaking or drooping from the weight of the tomatoes. Tomatoes can be started by seed indoors 5 to 6 weeks before planting or bought as transplants. Plant outdoors after the risk of frost has passed, water plants well before transplanting, and choose a location where other nightshade-family plants have not been grown within the past 3 to 4 years. Plant as early as possible, as North Carolina's hot summers can cause blossoms to drop before setting fruit. Larger fruits like beefsteak tomatoes are harder to produce in NC for this reason. Space plants 18 to 24 inches apart. Tomatoes will grow extra roots on portions of the stem that are under the soil; remove the lower set of leaves and bury the lower portion of the stem 2 to 3 inches below the ground to increase root growth and plant vigor. Tomatoes can also be grown in containers at a minimum of 5 gallons and 1 to 2 feet deep, one plant per pot. Harvesting of fruits may occur 2 to 3 months after planting the seeds or up to 4 to 5 months, depending on the variety. They can be eaten fresh or frozen and canned for future use for making sauces, soups, or salsas, making them a garden favorite and the most popular homegrown vegetable. Although native to Peru, they have spread worldwide after the Spanish colonization. The fruits come in various colors, from yellow to red to purple, and in small to large sizes. Tomatoes are usually grown as an annual, but in frost-free climates, they are perennials. The plants can grow 1 to 10 feet tall and 1 to 4 feet wide. While the portion eaten is botanically a fruit, tomatoes are considered a vegetable due to their savory flavor. There are thousands of varieties and cultivars of tomatoes. They are commonly classified as determinate or indeterminate: ​​​​​​Determinate: bush-type, bears a full crop of fruit all at once, grows to a specific height, and is good for container planting. Indeterminate : vine-like, never tops off, and continues producing fruits until frost. Tomatoes are appropriate in any edible or pollinator garden. To get started, you may want to consider a container, patio plants or a small vegetable garden in your backyard. Quick ID Hints: Erect or ascending with light to dark green tender stems with sticky, dense hairs. Alternate, densely hairy green compound leaves, 4 to 10 inches long with 5 to 9 leaflets, each leaflet 3 inches long with serrated margins. Small, yellow, star-shaped, five-lobed flowers. The berry fruit is the tomato, varying in size, shape, and color depending on the variety or cultivar. Click here to see a calendar of planting schedules, time-to-harvest and recommended spacing. NC Extension has a publication on Growing Tomatoes in the Home Garden . Insects, Diseases and Other Plant Problems: Tomatoes are susceptible to many pests, including stink bugs, cutworms, tomato hornworms, tobacco hornworms, aphids, cabbage looper, whiteflies, tomato fruit worms, flea beetles, red spider mites, slugs and Colorado potato beetle. Diseases include blights, blossom end-rot, verticillium wilt, fusarium wilt, tobacco mosaic virus, and bacterial and viral diseases; please refer to this useful resource for tomato diseases and their management . Cultivars can vary in their disease resistance. Many hybrids have been developed to improve disease resistance. Cracking of the tomato fruit can occur due to uneven watering or uneven moisture from weather conditions. More information on Solanum .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 73 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (3-15 ft) Optimal soil pH Acid (<6.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Annual; Edible; Herbaceous Perennial; Poisonous; Vegetable; Warm Season Vegetable
Life cycle
Annual; Perennial
Light
Full sun (6 or more hours of direct sunlight a day)
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
3 feet-6 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 1 ft. 0 in. - 10 ft. 0 in. | Width: 1 ft. 0 in. - 4 ft. 0 in.
Growth rate
Rapid
Maintenance
High
Canopy layer
4 - Herbaceous (3-15 ft)
Form & Appearance
Habit / form
Ascending; Erect; Multi-stemmed; Spreading
Texture
Medium
Leaf color
Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately); Simple
Leaf arrangement
Alternate
Leaf shape
Cordate; Cuneate; Lanceolate; Ovate
Leaf margin
Dentate; Lobed; Serrate
Leaf feel
Velvety
Leaf value
Fragrant
Leaf size
> 6 inches long, 1-3 inches wide
Hairs present
Yes
Leaf detail
The green leaves are alternate, 4 to 10 inches long with 5 to 9 leaflets and each leaflet is 3 inches long with serrated or toothed margins. The leaf shape is ovate to lanceolate with cordate or cuneate base The surfaces are velvety, densely hairy, and strongly scented.
Flower color
Gold/Yellow
Flower form
Cyme; Raceme; Solitary
Flower shape
Star
Flower size
< 1 inch
Flower detail
The flowers are yellow, star-shaped, five-petaled blooms with recurved petals in clusters of 3 to 12 blooms. Stamens are partially fused to the pistils.
Bloom time
Fall; Summer
Fruit color
Gold/Yellow; Green; Orange; Pink; Purple/Lavender; Red/Burgundy; Variegated
Fruit type
Berry
Fruit value
Edible; Showy
Fruit size
> 3 inches long, > 3 inches wide
Fruit detail
The fruits are smooth, shiny, glossy, and are classified as berries. The size, shape, and color will vary depending on the variety or cultivar. The color of the fruits may be red, yellow, orange, green, purple, or pink. The fruits may contain over 100 yellow to light brown seeds.
Stem color
Green
Stem detail
The stems are tender, light to dark green, sticky, and hairy branches. They may be erect or sprawling.
Wildlife & Ecology
Native status
Unknown
Origin
Peru
Distribution
Native: Peru; Introduced: Angola, Austria, Bahamas, Bangladesh, Belarus, Bolivia, Cambodia, Canada, China, Columbia, Cuba, Czechoslovakia, East European Russia, Ecuador, Fiji, India, Japan, Kazakhstan, Korea, Mozambique, Myanmar, Namibia, New Zealand North, Pakistan, Panama, Philippines, Puerto Rica, Taiwan, Trinidad-Tobago, Turkey, United States--AL, AK, AZ, AR, CA, CT, DE, FL, GA, HI, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MS, MO, MT, NE, NV, NH, NC, ND, OH, OR, PA, RI, SC, TN, TX, UT, VT, VA, and WI, Uzbekistan, Venezuela, Vietnam, Zambia, Zaire, and Zimbabwe;
Wildlife value
The plant is pollinated by bees, especially bumblebees.
Attracts
Bees; Pollinators; Predatory Insects
Food & Medicine
Edible parts
Fruit
Harvest time
Fall; Summer
Fruit type
Berry

Edibility

The fruits or berries of the tomato are edible. They may be eaten raw, cooked, dried, or processed. They are a rich source of Vitamin A, Vitamin C, folic acid, and antioxidants. Lycopene is an antioxidant that gives the tomato its rich red color. Many plants will drop fruit when ripe or the fruit will come off easily. Tomatoes will continue to ripen once picked. Store them at room temperature.

Uses (ethnobotany)

The tomato was cultivated by the Inca Indians in 700 A.D. They were introduced to Europe in the 16th century. In the 1500s, many rich people thought the tomato was poisonous. They ate their food on pewter plates. The high acid content in the tomatoes caused the lead from the plates to leech into their food which caused lead poisoning and death. Poor people had wooden plates and suffered no ill effects; therefore, tomatoes were only eaten by the poor until the 1800s. The earliest recipe for ketchup appeared in 1818 and was developed by housewives in Maine. In the late 1800s, the Supreme Court of the United States declared that the tomato was to be legally considered a vegetable instead of fruit. In the early 1900s, the nutritive value of tomatoes was recognized.

Landscape Use
Landscape location
Container
Landscape theme
Edible Garden; Pollinator Garden
Design feature
Small groups
Garden tags
#vegetable garden #edible fruits #poisonous #edible garden #summer flowers #warm season vegetable #ebh-vh #ebh #vegetable #yellow flowers #red fruits #summer annual #full sun tolerant #problem for cats #problem for dogs #problem for horses #container vegetable garden #wilson mg plant sale 2021 #bee friendly #container plant #vhfn-v #vhfn #pollinator plant #early childhood #showy fruits #annual #th-taste #th-smell #child #children #preschool #early care #easy edibles #hortcontest #beneficial insects #th-touch #th-sowing #th-wildlife
Problems & Resistance
Insect problems
Pests of Tomato; Insect and Related Pests of Vegetables
Disease problems
Southern Blight of Tomato and Pepper; Bacterial Spot of Pepper and Tomato; Blossom-End Rot of Tomato, Pepper, and Watermelon; Tomato Late Blight; Botrytis Gray Mold of Tomato; Early Blight of Tomato; Septoria Leaf Spot of Tomato; Southern Bacterial Wilt of Tomato; Collar Rot and Alternaria Stem Canker of Tomato; Foliar Fungal Diseases on High Tunnel and Greenhouse Tomatoes; Gray Leaf Spot of Tomato; Bacterial Canker of Tomato; Damping-off in Flower and Vegetable Seedlings; Bacterial Wilt of Tomato; Verticillium Wilt of Tomato and Eggplant; Fusarium Wilt of Tomato; Tomato Spotted Wilt Virus on Tomato and Pepper; Tobamoviruses that affect tomato (TMV, ToMV, ToBRFV); Tomato Pith Necrosis; Tomato Yellow Leaf Curl Virus
Other problems
Blossom-End Rot of Tomato, Pepper, and Watermelon; Root-Knot Nematode of Tomato
Problems
Frequent Disease Problems; Frequent Insect Problems; Poisonous to Humans; Problem for Cats; Problem for Children; Problem for Dogs; Problem for Horses
Propagation
Seed
Poison severity
Medium
Poison parts
Leaves; Stems
Poison symptoms
Leaves and stems cause headaches, abdominal pain, dilated pupils, vomiting, diarrhea, hypersalivation, severe gastrointestinal upset, circulatory and respiratory depression, and loss of sensation if eaten in large quantities. Additional Toxicology: According to Dr. Anna Dulaney, Clinical Toxicologist and Assistant Director of Education for the Carolinas Poison Center, since their database began in 1997 there has been only one reference to a child having a reaction related to consuming tomato leaves or stems. In that instance, the child made and consumed a "Pie" consisting of cedar wood chips, grass clippings, tomato leaves, and various other items. That child vomited, but due to a large number of ingredients in the mixture, it is impossible to attribute the upset stomach to the consumption of tomato leaves. She noted that in their database, the largest number of tomato leaves consumed at one time was 5 or 6 and that there were no ill effects. (This footnote inserted by Dr. Lucy Bradley, NC State Extension Urban Horticulture Specialist 10/26/2010)
Toxic principle
Toxic alkaloid tomatine and solanine
Contact dermatitis
No
Toxicity summary
Medium severity poison; parts: Leaves; Stems

Planted at Hunnicutt

Nobody’s planted this one yet.