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How to Grow Basil from Seed

easyGardening1 hr

Learn how to cultivate fresh, aromatic basil right from your own home. This beginner-friendly guide provides step-by-step instructions on sowing seeds and maintaining the ideal environment for healthy growth. By the end, you will have a thriving herb plant ready for your favorite recipes.

Tools Needed

Gardening scissors — Sharp, precision blades for pruning
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Spray bottle — Plastic misting bottle for watering
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Materials

Basil seeds or seedlings — Sweet or Genovese variety(1 packet)
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Potting soil — Coarse, nutrient-rich, well-draining mix(As needed for container)
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Container — Clay, plastic, or stone with drainage holes(1)
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Steps

1
Prepare the container by filling three-quarters of it with coarse, well-draining potting soil. Use a spray bottle to lightly moisten the soil before filling it to the top, ensuring the container has drainage holes at the bottom to prevent root rot.
2
Sow the basil seeds by scattering 5-7 seeds evenly on top of the soil, spacing them about 1 inch apart. Cover the seeds with a thin layer of dry soil, roughly 0.25 inches deep, and mist again with a spray bottle to provide moisture. Tip: Planting multiple seeds per pot compensates for the relatively low germination rate of about 60 percent.
Seed layer Potting soil Clay pot Cover seeds Cross-section: Scatter seeds and cover with 0.25" of dry soil.
3
Place the container in a warm, sunny spot that receives at least 6 to 8 hours of sunlight daily, such as a south-facing windowsill. If natural light is insufficient, use fluorescent grow lights positioned 2 inches above the plants for 10 to 12 hours a day.
Place in sun Grow light (2") Sunny windowsill Seedling pot Position plant for 6–8 hours of sunlight or use supplemental grow lights
4
Water the basil from the base at the soil line twice a week to keep the plant hydrated while avoiding wetting the leaves. Test the soil dampness by sticking a finger 1 inch deep; if it feels dry, provide water until it drains from the bottom holes.
5
Prune the seedlings once they reach 6 inches in height and have produced at least three to six sets of leaves. Use sharp scissors to trim the stems just above a set of leaves or at the center to encourage the plant to grow bushy rather than lanky.
Trim stem Sharp scissors Leaf node 6" height Cut just above the leaf set to promote bushy lateral growth
6
Harvest leaves frequently by pinching off the newer leaves from the top or cutting stems above where two large leaves meet. Regularly pinch off any flower heads as soon as they appear to redirect the plant's energy back into producing foliage.
Pinch off top growth Flower head Main stem Harvesting · Remove top leaves and flower buds to encourage bushy growth

Pro Tips

  • To prevent pests like aphids or spider mites, spray the leaves with a solution of one teaspoon of liquid soap mixed into a gallon of cool water.
  • Avoid over-fertilizing as it can negatively affect the flavor; a diluted liquid nitrogen-based fertilizer every 3 to 4 weeks is sufficient.
  • If growing outdoors, plant basil alongside tomato plants as it acts as a natural insect repellent.

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