Basil Seeds – Ocimum basilicum
Ocimum basilicum • Lamiaceae (Mint) • Native to Tropical Asia, India
Basil Seeds grow into aromatic annual herbs with glossy green leaves and a sweet, peppery flavor. A versatile choice for herb gardens, containers, raised beds, pesto, salads, and fresh culinary use.
Seed Variety: Basil Seeds
Quantity: 100 Seeds
Selected: Basil Seeds / 100 Seeds
Germination depends on soil, temperature, moisture, and care. See our return policy for details.
At a glance
Basil is highly sensitive to frost and cold soil, so planting too early in the season or in cold, wet ground is one of the most common reasons seedlings fail to establish or turn black at the base.
Botanical profile
Meet the Basil – Ocimum basilicum
Step-by-step planting
Growing basil from seed is straightforward when you match its needs for warmth, light, and well-drained soil, though results will vary depending on your climate, seed depth, moisture consistency, and the care you give early seedlings.
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1
Time Your Sowing
Start seeds indoors 6 to 8 weeks before your last expected frost date, or sow directly outdoors once nighttime temperatures reliably stay above 50 degrees Fahrenheit, which typically aligns with USDA zones 9 through 11 for direct spring sowing.
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2
Choose the Right Soil
Basil thrives in loose, well-draining soil with a pH between 6.0 and 7.0, so amend heavy clay or compacted beds with compost before sowing, and consider a quality potting mix for containers to ensure good drainage from the start.
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3
Sow at the Right Depth
Press seeds lightly into the soil surface and cover with no more than one quarter inch of fine soil or vermiculite, since basil seeds need light to germinate well and burying them too deep is a frequent cause of poor sprouting.
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4
Maintain Germination Temperature
Basil germination temperature sits in a sweet range of 70 to 85 degrees Fahrenheit, so use a seedling heat mat if your indoor space runs cool, as soil temperatures below 65 degrees will slow germination noticeably or stall it altogether.
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5
Water Carefully
Keep the soil consistently moist but never waterlogged during germination and early growth, watering gently at the base of seedlings once they emerge to avoid damping off, a fungal condition that collapses young stems at soil level.
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6
Thin and Space Plants
Once seedlings have their first set of true leaves, thin or transplant them to follow a basil spacing planting guideline of about 12 to 18 inches apart, giving each plant room for airflow and canopy development.
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7
Harvest to Encourage Growth
Basil days to harvest typically run 60 to 90 days from seed to a full harvest-ready plant, but you can begin pinching individual leaves earlier, and consistently cutting just above a leaf node will encourage the plant to branch and produce more foliage rather than rushing to flower.
Year-round care
Spring
- Sow after last frost
- prepare soil with compost
Summer
- Water regularly
- feed monthly
Fall
- Harvest before frost
- store well
Winter
- Rest
- store seeds cool and dry
Full specifications
Shipping
- Orders are delivered within 8 to 16 business days.
- All orders include tracking.
- Free shipping on all orders.
- Seeds are packed in moisture-resistant, resealable foil packets.
Germination
Germination rates vary depending on climate, soil conditions, and care. Seeds perform best when planted in the right season at the correct temperature, with consistent moisture and adequate light. We take quality seriously and each batch is tested before packaging. If you have concerns about your seeds, reach out and we will do our best to help.
Frequently asked
Questions about Basil Seeds – Ocimum basilicum
How long do basil seeds take to germinate?
Under warm conditions with soil temperatures in the 70 to 85 degree Fahrenheit range, basil seeds often begin sprouting within 5 to 10 days. Germination timing varies depending on soil temperature, moisture consistency, seed depth, and overall growing conditions, so some seeds in the same tray may emerge a few days apart. Cooler soil or inconsistent watering can extend this window considerably, and not every seed in a packet will sprout, which is normal for any open-pollinated herb seed.
What is the best soil pH for basil?
Basil soil pH performs well in a range of 6.0 to 7.0, with slightly acidic to neutral conditions encouraging strong root development and nutrient uptake. If your soil trends more acidic, adding a small amount of garden lime can help nudge it into range, while overly alkaline soil can be amended with sulfur or peat. A simple home soil test kit is worth using before sowing, especially if you have had poor results with herbs in the past.
Can basil be grown in containers?
Growing basil in containers works very well as long as you choose a pot with drainage holes and at least 8 to 12 inches of depth to accommodate the root system. Use a quality, well-draining potting mix and place the container in a spot that receives 6 to 8 hours of direct sun each day. Container-grown basil dries out faster than in-ground plants, so check soil moisture regularly and water when the top inch feels dry.
When should I harvest basil leaves?
You can begin harvesting individual leaves once plants have at least 6 to 8 leaves and are a few inches tall, but a more productive approach is to pinch the growing tips just above a pair of leaves, which signals the plant to branch and increase its leaf output. Harvest in the morning after any dew has dried for the most aromatic leaves. Removing flower buds as soon as they appear will keep the plant producing flavorful foliage longer into the season.
Is basil safe for pets?
Sweet basil is generally considered non-toxic to dogs and cats according to information from veterinary organizations, and small amounts are unlikely to cause harm. That said, any plant material consumed in large quantities can cause digestive upset in animals, so it is reasonable to keep pets from grazing heavily on your herb garden. If you have concerns about a specific pet or a plant other than standard Ocimum basilicum, a conversation with your veterinarian is always a reliable step.
What temperature do basil seeds need to sprout?
Basil germination temperature sits in a range of 70 to 85 degrees Fahrenheit for reliable sprouting. Below 65 degrees, germination slows significantly and seeds may rot in the soil before they have a chance to sprout. Using a seedling heat mat set to around 75 degrees is a practical way to maintain consistent soil warmth, especially during early spring when indoor temperatures can fluctuate.
How far apart should basil plants be spaced?
For most standard sweet basil varieties, a basil spacing planting distance of 12 to 18 inches between plants is a solid working guideline. Closer spacing increases competition for light and reduces airflow, which can encourage fungal issues in humid climates. If you are growing a compact or dwarf variety, 8 to 10 inches may be sufficient, but giving plants a little more room than you think they need is usually worth it in the long run.