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Ocimum basilicum (Basil)

Sweet Basil, Genovese Basil, Thai Basil, Purple Basil, Lemon Basil, Holy Basil, Italian Large Leaf Basil, Napoletano Basil, Cinnamon Basil, Spicy Globe Basil, Lettuce Basil

Basil, Ocimum basilicum, Sweet Basil, Genovese Basil, Thai Basil, Purple Basil, Lemon Basil, Holy Basil, Italian Large Leaf Basil, Napoletano Basil, Cinnamon Basil, Spicy Globe Basil, Lettuce Basil

Widely cultivated worldwide, Basil is one of the easiest herbs to grow. The leaves are used fresh or dried to flavor meats, fish, salads, and sauces. Its sweet aroma and strong flavor make it popular in a variety of cuisines.

All you need to know about Basil

  • Basil (Ocimum basilicum) belongs to the mint family (Lamiaceae), along with oregano, thyme, and rosemary. Native to the tropical regions of Asia, it was introduced in the Mediterranean basin by the Greeks and Romans and later diffused in the rest of Europe and the Americas. Dozens of cultivars and varieties are available, offering a rich array of flavors, leaf colors, and textures, from sweet Italian varieties to spicy Thai basils.
  • Most varieties are short-lived tender perennials that thrive in warmer climates like the Mediterranean and Africa. In cooler climates, they are usually grown as aromatic annuals or biennials. Adaptable to the heat, this wonderful little plant is a warm-season herb that is frost sensitive and does not survive a light frost.
  • Depending on the varieties, Basil is ready to harvest 60 to 90 days after planting. It is regarded as one of the easiest plants to grow.
  • Basil grows extremely well both indoors and outdoors. It requires a sheltered, warm, sunny site with well-drained soil.

Benefits and Uses

  • Basil is one of the world’s most popular and widely used culinary herbs. Sweet Basil is the quintessential Italian culinary herb, most famous for its use in pesto. It is also used for flavoring salads, tomato sauces, soups, vegetables, chicken, egg, and fish dishes. Citrus-scented and spice-flavored varieties work well in Asian recipes. Young leaves have the best flavor, while old ones have a coarser, stronger taste.
  • Although Basil naturally repels mosquitoes and flies, it attracts bees, butterflies, and other beneficial insects to the garden.
  • Basil is a valuable addition to the vegetable garden and an excellent companion plant for tomatoes, peppers, parsley, lettuce, asparagus, beans, beets, cabbage, eggplant, marigolds, potatoes, or oregano. Avoid planting it near Rue (Ruta graveolens) and Sage (Salvia officinalis).
  • While Basil makes a colorful and flavorful addition to many dishes, it can also provide some health benefits. Basil contains many vitamins, minerals, antioxidants, and essential oils. However, all these great compounds disappear during the process of drying, so opt for fresh basil whenever possible to enjoy the most benefits. Basil can help reduce inflammation, lower blood pressure, fight free radicals, and reduce high blood sugar levels. It has antibacterial properties. Popular in Ayurvedic medicine, Tulsi provides many benefits, including improving mental health, reducing anxiety and depression, and lowering the risk for age-related memory loss.
  • Basil is low-maintenance. Just pinch off the flowers as they arrive to send the growing energy into the leaves, which is why most people grow this aromatic herb.
  • This aromatic herb has no serious pest or disease issues. It is no favorite of deer and rabbits.

Guide Information

Hardiness 2 - 11
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A1, A2, A3
Plant Type Annuals, Herbs, Perennials
Genus Ocimum
Exposure Full Sun
Season of Interest Spring (Late), Summer (Early, Mid, Late), Fall
Height 8" - 3' (20cm - 90cm)
Spread 8" - 2' (20cm - 60cm)
Maintenance Low
Water Needs Average
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Tolerance Deer, Rabbit
Attracts Bees, Butterflies
Landscaping Ideas Patio And Containers, Beds And Borders
Garden Styles City and Courtyard, Informal and Cottage, Mediterranean Garden

Most Popular Basil Types

When to Plant Basil

  • Basil seeds are easily started indoors or planted directly in the garden.
  • They can be directly seeded in the garden once soil temperatures reach 70ºF (21°C) and night temperatures are above 50°F (10°C).
  • Basil can also be started indoors 6 weeks before the last frost date.
  • The plant germinates quickly, sprouting within 5-10 days, and is ready to harvest in 60 to 90 days.
  • Basil plants will die off at the end of summer once temperatures start to fall.
  • Protect your plants with row covers when temperatures drop below 50°F (10°C), or dark spots caused by cold injury may appear on leaves.

Where to Plant Basil

  • Basil is a heat-loving plant that is perennial in zones 10-11 but grown as an annual elsewhere.
  • It is easily grown in full sun (at least 6-8 hours of sunlight daily), although it grows reasonably well in part sun, particularly in the hottest climates.
  • Basil thrives in light, well-drained, fertile soil in a sheltered position.
  • It works well in kitchen gardens, herb gardens, containers or raised beds.
  • Basil is a valuable addition to the vegetable garden and an excellent companion plant for tomatoes, peppers, parsley, lettuce, asparagus, beans, beets, cabbage, eggplant, marigolds, potatoes, or oregano. Avoid planting it near Rue (Ruta graveolens) and Sage (Salvia officinalis).

How to Plant Basil

  • Sow seeds about 1/4 inch deep (1/2 cm). Cover with a thin layer of vermiculite and water gently.
  • Once seedlings emerge and have their first true leaves, thin seedlings to one plant every 10-12 inches (25-30 cm) or 16-24 in. (40-60 cm) for larger varieties.
  • Keep plants indoors until all danger of frost has passed, then harden them off to gradually acclimatize them to outdoor conditions.

Companion Plants for Basil

Allium sativum (Garlic)
Asparagus officinalis (Asparagus)
Beta vulgaris (Beet)
Borago officinalis (Borage)
Brassica oleracea Botrytis Group (Cauliflower)
Brassica oleracea Italica Group (Broccoli)
Capsicum annuum (Pepper)
Matricaria recutita (German Chamomile)
Origanum vulgare (Oregano)
Petroselinum crispum (Parsley)
Raphanus sativus (Radish)
Solanum lycopersicum (Tomato)
Solanum tuberosum (Potato)
Tagetes (Marigold)
Tropaeolum (Nasturtium)
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Ocimum (Basil)
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.

Guide Information

Hardiness 2 - 11
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, A1, A2, A3
Plant Type Annuals, Herbs, Perennials
Genus Ocimum
Exposure Full Sun
Season of Interest Spring (Late), Summer (Early, Mid, Late), Fall
Height 8" - 3' (20cm - 90cm)
Spread 8" - 2' (20cm - 60cm)
Maintenance Low
Water Needs Average
Soil Type Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Showy
Tolerance Deer, Rabbit
Attracts Bees, Butterflies
Landscaping Ideas Patio And Containers, Beds And Borders
Garden Styles City and Courtyard, Informal and Cottage, Mediterranean Garden
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