Start seed indoors approximately six weeks before the expected last frost. Sow 6 mm (1/4 in) deep in light mix held around 20 to 25°C (68 to 77°F), then keep the surface moist without saturation. Emergence often occurs in 7 to 14 days. Provide abundant light immediately to avoid weak seedlings. Transplant only after all frost risk when soil is warm and nights remain mild. Acclimate plants for approximately one week by gradually increasing exposure to sun and wind. Holy basil is tropical and gains nothing from being placed too early in cold soil. If seedlings become crowded, pot them up gently before roots tangle rather than delaying outdoors under unsuitable temperatures.
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Tender annual culinary herb
Lamiaceae
Organic culinary herb seeds
Organic ‘Holy’ sacred basil (Ocimum tenuiflorum)
Ocimum tenuiflorum
Organic holy basil, or tulsi, is Ocimum tenuiflorum, a tender aromatic herb grown as an annual in Quebec. Foliage has a warm, spicy, herbal aroma distinct from sweet basil. Edible leaves and flowers are traditionally used in infusions and may also flavour broth, rice, vegetables, or herb blends. Start seed indoors approximately six weeks before planting and wait for thoroughly warm soil before moving plants outside. Full sun, fertile well-drained soil, even moisture, and frequent pinching support branching growth. Several flower spikes left open attract bees and other pollinators. Always protect this tropical plant from chilly nights and frost. The species identification is retained without inventing a cultivar.
Quantity
Approximately 125 organic seeds
Exposure
Full sun
Difficulty level
Easy to moderate
Discover the plant
Family
Lamiaceae
Genus
Ocimum
Species
tenuiflorum
Cultivar
Holy
Type
Tender annual culinary herb
Cycle
Tropical perennial grown as an annual in cold climates
Organic holy basil (Ocimum tenuiflorum), also called tulsi, is a tender annual herb in Quebec’s climate. Aromatic foliage carries spicy, herbal notes distinct from sweet basil. Leaves and flowers are edible; they are traditionally used in infusions and may flavour broth, rice, vegetables, or herb blends. Plants branch when shoot tips are pinched, then carry spikes of small pale to purple flowers visited by bees and other pollinators. This organic seed suits herb gardens, edible borders, and warm sunny containers. Its botanical identity is stated at species level because the commercial title does not confirm a more specific registered cultivar or tulsi type.
Start seed indoors approximately six weeks before transplanting, or sow outdoors only after all frost risk when soil is warm. Place seed approximately 6 mm (1/4 in) deep in a light mix, maintain steady warmth, and keep the surface moist without saturation. Emergence often takes one to two weeks. Give seedlings intense light, acclimate them gradually, then place them in full sun in fertile, well-drained soil. Leave enough spacing for airflow. Water at soil level when the surface begins drying and pinch above a pair of leaves to encourage branching. Do not rush plants outdoors because cool soil and nights interrupt growth.
Harvest tender tips with clean scissors throughout warm weather without removing too much foliage at once. Pinch flower buds when leaf production is the priority, or allow several spikes to open for pollinators and seed harvest. Holy basil responds poorly to cold: move a container inside before chilly nights or finish harvesting before frost. Use fresh leaves promptly, freeze them in small portions, or dry them in a thin layer in shade with good ventilation. Describe infusions as a traditional food use rather than a medical treatment. Wash leaves immediately before preparation and discard any tissue that is slimy, mouldy, or heavily damaged.
Planting guide
From planting to establishment.
Planting depth
Approximately 6 mm (1/4 in)
Spacing / density
Sow 5 seeds per hole; space plants 30 cm (12 in) apart and rows 45 cm (18 in) apart
Establishment temperature
Approximately 18 to 21°C (65 to 70°F)
Establishment time
Approximately 5 to 10 days; the packet states a 90% germination rate
Best planting time
March to May, indoors
Propagation
Seed; stem cuttings possible from a healthy plant
Growing method
Sow indoors approximately six weeks before last frost in a clean light mix. Place seed 6 mm (1/4 in) deep, keep the mix warm at approximately 20 to 25°C (68 to 77°F), and maintain surface moisture without saturation. After emergence, provide intense light and good airflow. Pot up young seedlings carefully before roots become tangled. Once frost risk has passed and nights warm, acclimate plants for one week, then place them in full sun 25 or 30 cm (10 to 12 in) apart. Incorporate mature compost, water at soil level, and mulch lightly after soil warms. Pinch above a pair of leaves when each stem carries several nodes. Harvest regularly without removing more than one-third of the foliage. Remove flowers to extend leaf production or retain several spikes for insects and seed. Before cool nights, move containers inside or finish harvest. Clean tools, remove diseased plants, and dry seed only when fully mature. Label every batch with its date and botanical name. Record emergence and first-cut dates. Inspect leaf undersides weekly, isolate any seriously affected plant, and never save seed from a plant showing persistent disease. Keep harvested leaves shaded and cool, and clean scissors between plants. If indoor seedlings stretch, improve light rather than applying fertilizer.
Soil and care
The right conditions.
Exposure
Full sun
Soil pH
Slightly acidic to neutral
Watering
Keep the medium evenly moist during germination without saturating it. After establishment, water deeply when the upper few centimetres begin to dry. Water at soil level in the morning so foliage remains dry, and empty saucers afterward. Containers may need daily checks during hot or windy weather. Avoid alternating severe drought with excess water, which reduces leaf quality and weakens growth.
Soil type
Grow sacred basil in loose, moderately rich, humus-bearing, very well-drained soil. Slightly acidic to neutral pH is suitable. Incorporate a moderate amount of mature compost before planting without compacting soil around the roots. In containers, use light potting mix in a pot with unobstructed holes. Avoid cold, heavy, or constantly waterlogged soil, which slows growth and encourages root problems. Keep the surface loose.
Fertilization
Mix a small amount of mature compost into the soil before planting. In reasonably fertile ground, sacred basil needs little fertilizer. Excess nitrogen produces soft growth and may dilute aroma. If growth becomes pale in poor soil or a container, apply a balanced fertilizer lightly according to its label, water afterward, and observe the response before feeding again. Never place concentrated fertilizer against stems or roots.
Seasonal care
In late winter, prepare a warm bright area to start seed approximately six weeks before last frost. Keep the mix moist, watch for damping-off, and increase light immediately after emergence. In spring, pot up seedlings before they crowd, then acclimate them gradually as nights warm. Wait until frost risk has genuinely passed before planting. In early summer, add mature compost, water at soil level, and begin pinching above pairs of leaves. During hot periods, check container moisture daily, harvest regularly, and inspect for aphids. Remove most buds when leaves are the priority and retain several spikes for insects. In late summer, select healthy stems for seed and reduce cutting on them. Move containers inside before cool nights or finish harvest. Dry leaves and seed separately, label them, and verify dryness before storage. After frost, remove plants, clean pots and tools, then record dates, problems, and aromatic quality from each harvest. Inspect stored material after several days and discard any batch showing condensation, mould, or an unusual odour. In containers, empty saucers after rain and rotate pots for balanced light. Isolate any plant showing serious disease and do not save its seed. Compare branch number and leaf quality between pinched and flowering plants. Keep these observations with the garden plan to adjust sowing date, spacing, and the number of stems reserved for pollinators. Before reusing potting areas, remove old roots and verify that drainage remains open. Do not bring visibly infested plants indoors.
Container growing
A controlled environment.
Recommended pot size
20 to 30 cm (8 to 12 in)
Choose a stable container at least 20 to 30 cm (8 to 12 in) wide and deep with several holes. Fill it with fertile, well-drained potting mix amended with modest mature compost. Place one vigorous plant in a small pot or space several plants 25 cm (10 in) apart in a large planter. Position the container in sun and rotate it weekly for balanced light. Water slowly when the surface begins drying, then empty the saucer. Pinch tips above a pair of leaves and harvest small amounts instead of stripping the plant. Feed lightly only when foliage pales. Monitor aphids and mould beneath leaves. As nights cool, move the pot into a bright warm location without promising easy winter production. Supplemental lighting may improve indoor conditions. Clean scissors between plants, avoid keeping foliage constantly wet, and reduce irrigation as growth slows. Replace the plant when root problems persist, and never reuse visibly diseased mix for another basil crop. Label the pot with species and sowing date, then inspect drainage holes after heavy rain. Harvest in the morning, place leaves in shade immediately, and keep the container away from scorching surfaces that overheat roots. When moving indoors, quarantine it briefly and inspect for insects before placing it near other herbs.
Bloom and dimensions
The complete profile.
Flower color
Pale to purple
Foliage color
Green, sometimes tinged purple
Foliage type
Deciduous
Growth rate
Fast in warm weather
Bloom period
In summer, sacred basil forms upright spikes of small pink, mauve, or whitish flowers. Pinch the first buds when extended leaf harvest is the priority, and allow several stems to bloom when supporting pollinators or producing seed. Flowering marks a slowdown in tender leaf production. Collect seed only after inflorescences turn brown and dry fully in dry weather, then finish drying indoors before storage.
Harvest
Leaves and tender tips throughout warm weather, before frost
Garden associations
What to plant with it.
Good companions
The planting guide printed on the back of the packet lists ground cherry, pepper, and tomato as friendly plants. This wording records the supplier’s proposed association, but it does not guarantee pest protection or increased yield. Grow each crop according to its own requirements for sunlight, spacing, water, and fertility. Maintain enough airflow around sacred basil, monitor pests and diseases separately, and move plants when excessive shade or competition develops. Avoid crowding stems against neighbouring foliage. Record your observations each season carefully.
Harvest young leaves with clean scissors for teas, broths, and cooked dishes suited to their warm, spicy aroma. Use only correctly identified plants grown without products incompatible with food use. Wash leaves gently, drain them, and use promptly or dry them in a thin layer away from direct sun. Do not treat the herb as a medical remedy; consult a healthcare professional before concentrated, regular, or therapeutic use, particularly during pregnancy, breastfeeding, or while taking medication. Introduce unfamiliar culinary herbs cautiously.
From the garden to inspiration.
Gentle tulsi culinary infusion — Rinse 10 to 12 young holy basil leaves and dry them carefully. Bruise them lightly, then place them in a clean teapot with 500 mL (2 cups) water just below boiling. Cover and steep for 5 to 7 minutes. Strain, taste, then add a small lemon slice or spoonful of honey if desired. Serve warm or cool promptly for an iced drink. This preparation describes a traditional food use and does not replace medical advice. Use only a plant correctly identified as Ocimum tenuiflorum and grown without treatments unauthorized for edible plants. Wash hands and utensils before preparation. Do not leave the infusion at room temperature for several hours; refrigerate leftovers within two hours and use them promptly. For broth, add several leaves near the end of cooking to retain aroma, then remove thick stems before serving. Adjust strength with water rather than assuming a medicinal dose.
Frequently asked questions
Everything toknow.
Wait until a stem carries several leaf pairs, then cut its tip just above one healthy pair with clean scissors. Two new shoots may develop below the cut and make the plant more branched. Repeat on different stems instead of removing the whole top on one day. For cooking, harvest tender tips in the morning after dew dries and remove no more than one-third of the foliage. Cool the harvest promptly. Pinch buds when leaves are the priority, but allow several spikes to open when pollinators or seed are desired. Stop heavy cutting before cool weather. Clean scissors after diseased tissue and never harvest leaves showing mould or severe insect damage.
Yes. Use a stable pot at least 20 to 30 cm (8 to 12 in) wide and deep with several drainage holes. Fill it with fertile, well-drained potting mix amended with modest mature compost. Place one plant in a small pot or space plants 25 cm (10 in) apart in a large planter. Position the container in full sun, rotate it regularly, and water as the surface begins drying. Always empty the saucer. Pinch frequently to maintain branching growth. As nights cool, move the pot into a very bright warm location while reducing water if growth slows. Supplemental light may be necessary to extend indoor production. Inspect leaf undersides before bringing the container inside.
Yes. Small flower spikes provide nectar to bees and other visitors during warm weather. To retain this value, allow several stems to bloom fully and avoid nonselective insecticides. Place flowering plants in a well-lit area away from traffic so stems are not broken and insects are not disturbed. The choice involves a trade-off: a stem devoted to flowers generally produces fewer new tender leaves. Divide roles among several stems or plants. Observe visitors without capturing them and remove only clearly diseased flowers. Bloom does not guarantee the presence of one particular insect species. Keep irrigation at soil level so flowers remain dry and accessible during the day.
Use fresh leaves promptly or freeze them in clean small portions. For drying, spread leaves in a thin layer in shade in a dry, well-ventilated location; avoid thick bundles that retain moisture. Store them only when crisp and completely dry. For seed, allow several spikes to mature until brown, then cut them over a paper bag before scattering. Finish drying, rub spikes gently, and remove debris. Label with species and date. Check the container after several days; any condensation requires additional drying. Discard every batch showing mould, unusual odour, or persistent moisture. Keep seed away from heat and bright light, and retain only material collected from healthy, correctly identified plants.
Its strengths, naturally.
Not recommended for pets
Pets
Attracts or supports pollinating insects
Pollinators
Plants that attract butterflies
Butterflies
