Sow indoors six to eight weeks before your region’s average last frost date, generally from March to April in Quebec. Place seeds 6 to 13 mm (1/4 to 1/2 in) deep in clean seed-starting mix and maintain 27 to 29°C (80 to 85°F) until emergence. Seedlings normally appear in 7 to 14 days. Then provide strong light, move young plants into individual pots once true leaves develop, and harden them gradually for about ten days. Wait until frost danger has passed and the soil has warmed before transplanting them permanently into the garden. Label each tray with the sowing date and cultivar so emergence can be assessed accurately.
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Indeterminate heirloom tomato seed
Solanaceae
Organic fruiting vegetable seeds
Organic ‘Oma’s Orange’ tomato (Solanum lycopersicum ‘Oma’s Orange’)
Solanum lycopersicum
‘Oma’s Orange’ is an indeterminate heirloom tomato known for large orange beefsteak fruits weighing 227 to 454 g (8 to 16 oz). Their juicy flesh combines pronounced sweetness with gentle acidity, making the tomatoes especially enjoyable sliced, in salads, layered into sandwiches, or prepared as a fresh sauce. The vigorous plant can reach 1.5 to 1.8 m (5 to 6 ft) and requires sturdy support, full sun, and fertile, well-drained soil. Started indoors before the last frost, then transplanted after gradual hardening, this variety is well suited to Quebec vegetable gardens and large containers placed in a warm, brightly lit location.
Quantity
25 seeds
Exposure
Full sun
Hardiness
Zone 4 to 8
Difficulty level
Moderate
Discover the plant
Family
Solanaceae
Genus
Solanum
Species
lycopersicum
Cultivar
Oma’s Orange
Type
Indeterminate heirloom tomato seed
Cycle
Warm-season annual
Organic ‘Oma’s Orange’ tomato (Solanum lycopersicum ‘Oma’s Orange’) is an indeterminate heirloom tomato producing large, round to slightly flattened beefsteak-type fruits in a rich orange colour. Their juicy flesh has a fruity flavour in which sweetness remains balanced by gentle acidity. Fruits generally weigh 227 to 454 g (8 to 16 oz) and may develop singly or in small clusters of up to three tomatoes. The vigorous plant reaches approximately 1.5 to 1.8 m (5 to 6 ft) and continues growing, producing yellow blossoms, and setting fruit until cold nights end the season.
This warm-season tomato requires full sun, fertile soil enriched with organic matter, and efficient drainage. Sow indoors six to eight weeks before the last frost, 6 to 13 mm (1/4 to 1/2 in) deep, in clean seed-starting mix maintained at 27 to 29°C (80 to 85°F). Seedlings generally emerge in 7 to 14 days. Once true leaves appear, transplant the seedlings, provide strong light, and gradually harden them off. Move plants outdoors only after the soil has warmed and all danger of frost has passed, taking care not to disturb the developing roots more than necessary.
In a Quebec vegetable garden, ‘Oma’s Orange’ suits sunny rows, edible beds, and large containers placed beside a sturdy support. Space plants generously to promote air circulation, then tie the stems as they lengthen. Mulch helps stabilize soil moisture and limits soil splash onto the foliage. Harvest the fruits when they are uniformly orange and yield slightly to gentle pressure; they are excellent sliced, layered into sandwiches, added to salads, or prepared as fresh sauces. The yellow blossoms are visited by bumblebees and other insects capable of releasing tomato pollen through vibration, supporting fruit set where these pollinators are active.
Planting guide
From planting to establishment.
Planting depth
6 to 13 mm (1/4 to 1/2 in)
Spacing / density
Space plants approximately 90 to 120 cm (36 to 48 in) apart to accommodate indeterminate growth and air circulation.
Establishment temperature
27 to 29°C (80 to 85°F)
Establishment time
7 to 14 days
Best planting time
Transplant after the last frost, once the soil has warmed and nights remain above approximately 10°C (50°F).
Propagation
Seed
Growing method
Sow ‘Oma’s Orange’ indoors six to eight weeks before the expected last frost. Use clean, moistened seed-starting mix and place seeds 6 to 13 mm (1/4 to 1/2 in) deep. Maintain the mix at 27 to 29°C (80 to 85°F) until emergence, generally in 7 to 14 days, without keeping it waterlogged. As soon as shoots appear, remove the cover and provide strong light for an extended period each day to produce stocky plants. Move seedlings into individual containers once true leaves have formed, handling the roots carefully. About ten days before planting, gradually acclimate plants to direct sunlight, wind, and outdoor temperatures. Transplant after all frost danger has passed into warmed, fertile, well-drained soil, spacing plants 90 to 120 cm (36 to 48 in) apart. Install a sturdy cage or stake immediately. Water deeply at soil level, add mulch after the ground has warmed, and tie long stems as required. Maintain balanced nutrition and inspect foliage and developing fruit regularly throughout the season. Remove leaves that touch the ground, direct irrigation beneath the canopy, and harvest ripe tomatoes promptly. These practices improve air movement, reduce soil splash, and keep the vigorous plant manageable until cool autumn weather ends production.
Soil and care
The right conditions.
Exposure
Full sun
Soil pH
Approximately 6.0 to 6.8
Hardiness zone
Zone 4 to 8
Minimum temperature
Zone 4 to 8
Watering
Water deeply when the upper soil layer begins to dry, directing water to the base of the plant. Maintain the most even moisture possible during flowering and fruit enlargement without saturating the root zone. Organic mulch reduces evaporation and soil splash on foliage. Avoid sharp cycles between drought and heavy watering, which may encourage tomato cracking and interfere with calcium uptake. Check moisture beneath the mulch before watering again.
Soil type
Choose fertile, loose, well-drained soil enriched with mature compost before planting. A loamy texture that retains even moisture without remaining saturated supports rooting and helps limit moisture swings associated with fruit cracking or blossom-end rot. Avoid areas where water collects after rain, and rotate the crop with plants outside the Solanaceae family. Maintain the soil surface with clean mulch once the ground has warmed.
Fertilization
Incorporate mature compost before transplanting, then use a balanced fertilizer formulated for fruiting vegetables according to label directions and soil-test results. Avoid excessive nitrogen, which encourages abundant foliage at the expense of flowering and fruiting. In containers, divide applications because repeated watering leaches nutrients more quickly. Never fertilize completely dry potting mix; water first and follow the product label carefully.
Seasonal care
In spring, sow indoors six to eight weeks before the last frost and place seedlings under strong light as soon as they emerge. Pot them on once the first true leaves are well developed, and rotate containers regularly to encourage straight growth. About ten days before transplanting, gradually expose plants to wind, direct sun, and outdoor temperatures. Set them in the garden only after the soil has warmed and cold nights no longer threaten. In summer, secure stems to a sturdy stake or cage, water deeply at soil level, and maintain a clean mulch. Inspect foliage regularly, remove leaves touching the soil, and allow generous spacing to reduce stagnant humidity. Harvest tomatoes as they become uniformly orange and yield slightly. Avoid excessive nitrogen fertilization. In fall, gather ripe fruit before the first frost; fruit that has begun changing colour can finish ripening indoors. Remove plants and diseased debris afterward. During winter, clean supports and plan a three- to four-year rotation before placing another Solanaceae crop in the same bed. Between harvests, clean pruning tools before removing a diseased stem and avoid handling wet foliage. Record unusual symptoms and respond early with the least disruptive appropriate measure. Do not place infected residues in a home compost pile. Check stored supports again before spring so damaged cages, stakes, and ties can be replaced before young plants require them.
Container growing
A controlled environment.
Recommended pot size
Approximately 40 to 60 L, at least 45 to 50 cm (18 to 20 in) in diameter and depth
Choose a stable container at least 45 to 50 cm (18 to 20 in) in diameter and similarly deep, providing approximately 40 to 60 L of volume and several drainage holes. Fill it with a high-quality, airy vegetable potting mix enriched with compost rather than compact garden soil alone. At planting time, install a cage or stake sturdy enough to support a 1.5 to 1.8 m (5 to 6 ft) indeterminate tomato; adding it later could damage the roots. Place the container in full sun, ideally protected from severe winds. Water slowly until excess drains, then water again when the surface begins to dry. During hot weather, daily checking may be necessary, but never leave the pot standing in a water-filled saucer. Apply light mulch, fertilize regularly at a rate suited to container tomatoes, and tie stems as they grow. Remove only diseased lower foliage or leaves touching the mix. In fall, harvest before frost, compost healthy tissues only, and clean both container and support before storage. Keep the root zone evenly moist while flowers and fruit develop, and rotate the container only when uneven light causes the plant to lean. Before frost, harvest all usable fruit, discard diseased tissues rather than composting them, and wash the pot, ties, cage, and hand tools before storage.
Bloom and dimensions
The complete profile.
Flower color
Yellow
Foliage color
Green
Foliage type
Compound, divided foliage with an aroma when bruised; grown as an annual in Quebec
Growth rate
Vigorous during the warm season
Bloom period
Small yellow blossoms form in clusters and appear progressively on new stems throughout the warm season. Their anthers release pollen mainly through wind movement or vibrations produced by certain insects, particularly bumblebees. Excessive heat, pronounced cold, water stress, or fertilizer containing too much nitrogen can cause blossom drop and reduce fruit set. Maintain even moisture and good air movement without spraying open flowers during active insect visits.
Fruiting
Fruit develops after successful set and enlarges into round to slightly flattened beefsteak tomatoes generally weighing 227 to 454 g (8 to 16 oz). The skin changes from green to rich orange while the flesh becomes juicy, sweet, and gently acidic. Harvest when colour is uniform and the fruit yields slightly to gentle pressure. Avoid abrupt moisture fluctuations that encourage cracking, and gather coloured fruit before a forecast frost.
Harvest
Harvest when fruit is uniformly orange and yields slightly to gentle pressure; pick before frost.
Garden associations
What to plant with it.
Good companions
Basil, lettuce, onion, chives, and selected annual flowers can grow near this tomato when every plant retains enough light, water, air, and root space. Place shorter crops on the side that will not be shaded by the indeterminate canopy and preserve sufficient room for access. These garden combinations mainly diversify harvest and habitat; they do not replace crop rotation, proper spacing, sanitation, or regular pest monitoring throughout the growing season. Avoid crowding several large tomatoes around one small support locally.
Avoid planting with
Avoid waterlogged soil, overhead watering, crowding, and repeated rotations with tomatoes, peppers, eggplants, or potatoes.
A versatile table tomato intended mainly for fresh eating. Its large orange fruit suits thick slices, sandwiches, burgers, composed salads, colourful platters, bruschetta, and fresh or lightly cooked sauces. The juicy flesh can also be used in light purées, soups, and preserves prepared with a tested recipe. Contrasting it with red or yellow tomatoes creates especially colourful summer presentations. Harvest only sound fruit, wash before preparation, and promptly refrigerate every cut portion. Discard tomatoes with mould, fermentation, leakage, or an abnormal odour.
From the garden to inspiration.
To highlight the colour and texture of ‘Oma’s Orange’, prepare an uncooked heirloom tomato platter. Slice two large orange tomatoes and two red or purple tomatoes about 8 mm thick. Arrange alternating slices on a serving plate, then add one small, thinly sliced shallot, several basil leaves, and crumbled fresh cheese if desired. Whisk 30 mL (2 tbsp) olive oil with 15 mL (1 tbsp) apple cider vinegar, a pinch of salt, and pepper. Spoon the dressing over the tomatoes immediately before serving so the fruit retains its texture. Let the platter rest at room temperature for five minutes so the flavours mingle. Serve with toasted bread to capture the juices. This simple preparation preserves the tomato’s fruity sweetness and sets its luminous orange colour against contrasting heirloom cultivars. Serve immediately, refrigerate leftovers within two hours, and discard any tomato showing mould, fermentation, leakage, or an abnormal odour. This quantity makes approximately four side-dish portions.
Frequently asked questions
Everything toknow.
Choose a tall, sturdy cage or a firmly anchored stake able to carry a 1.5 to 1.8 m (5 to 6 ft) plant and several large fruits. Install the support at transplanting time to avoid damaging roots later. Secure stems with soft ties without tightening them, and add ties as the plant lengthens. Check them regularly because stems thicken quickly in summer. Indeterminate growth continues throughout the season, so a small decorative stake soon becomes inadequate. For a container plant, also ensure the pot is stable enough to prevent wind from overturning the entire structure. Inspect ties after windy weather and replace any material that begins cutting into an expanding stem.
A ripe fruit shows an even orange colour extending close to the shoulders and yields only slightly to gentle pressure without becoming soft. Its skin remains sound, and the tomato releases with a light twist or can be cut with clean pruners. Colour is a better guide than an exact day count because heat, sunlight, and transplanting date change the schedule. Harvest regularly to prevent fully ripe fruit from cracking or falling. Before a forecast frost, also gather tomatoes that have begun changing colour; they can finish ripening indoors at room temperature. Harvest regularly once this stage is reached so overripe fruit does not split or fall.
Yes, provided a stable container of approximately 40 to 60 L is used. It should measure at least 45 to 50 cm (18 to 20 in) in diameter and depth and have several drainage holes. Fill it with an airy vegetable potting mix enriched with compost, then immediately install a sturdy cage or stake. Place the pot in full sun and water slowly until excess drains whenever the surface begins to dry. In hot weather, check moisture every day. Regular but measured fertilizer applications replace nutrients leached by repeated watering. Never allow the container to remain standing in a water-filled saucer.
Yes. ‘Oma’s Orange’ is open-pollinated, so properly collected seed can reproduce its characteristics. To reduce crossing, isolate blossoms intended for seed before they open or adequately separate tomato cultivars. Select a healthy, typical fruit and allow it to ripen fully, then collect the seeds with their surrounding gel. Ferment them briefly in a small container, rinse thoroughly, and spread them out to dry completely. Label the envelope with the cultivar and year, then store it in a cool, dry place. Do not use diseased or atypical fruit as a seed source, because careful fruit selection directly affects the quality of the saved seed lot.
Its strengths, naturally.
Not recommended for pets
Pets
Attracts or supports pollinating insects
Pollinators
