How to grow rosemary in pots from a twig or from seeds

Rosemary (Rosmarinus officinalis) is a fragrant herb perfect for culinary use and as an ornamental plant. Growing rosemary in pots is convenient and allows you to enjoy fresh herbs year-round. Here’s a simplified guide for growing rosemary from both cuttings and seeds.

Materials Needed:

  • Rosemary twigs (cuttings) or seeds
  • Small pots for cuttings
  • Larger pots for mature plants (with drainage holes)
  • Well-draining potting mix (with sand or perlite)
  • Rooting hormone (optional for cuttings)
  • Watering can or spray bottle
  • Clear plastic bag or plastic dome (for cuttings)
  • Organic fertilizer

Growing Rosemary from Cuttings

Step-by-Step Guide:

  1. Selecting and Preparing the Cuttings:
    • Choose healthy, non-flowering rosemary stems (4-6 inches).
    • Strip the leaves from the bottom 2 inches of the cutting.
    • (Optional) Dip the cut end in rooting hormone.
  2. Planting the Cuttings:
    • Fill small pots with well-draining potting mix.
    • Insert the cut end into the soil (1-2 inches deep).
    • Water the soil gently.
  3. Creating a Humid Environment:
    • Cover each pot with a clear plastic bag or plastic dome.
    • Place pots in a bright, indirect light location.
  4. Caring for the Cuttings:
    • Keep soil moist but not waterlogged; mist if air is dry.
    • Check for roots after 4-6 weeks by gently tugging.
    • Transplant rooted cuttings into larger pots.
  5. Transplanting and Ongoing Care:
    • Use larger pots with drainage holes and well-draining potting mix.
    • Place pots in a sunny location (6-8 hours of sunlight daily).
    • Water when the top inch of soil is dry.
    • Fertilize every 4-6 weeks during the growing season.

Growing Rosemary from Seeds

Step-by-Step Guide:

  1. Seed Preparation and Sowing:
    • Start seeds indoors 8-10 weeks before the last frost.
    • Fill seed trays or small pots with seed-starting mix.
    • Sprinkle seeds on the surface, cover lightly with soil (¼ inch deep), and mist gently.
  2. Germination:
    • Place trays in a warm, bright location or under grow lights.
    • Keep soil moist but not soggy.
    • Germination takes 2-4 weeks.
  3. Transplanting Seedlings:
    • Transplant seedlings with true leaves into larger pots with well-draining mix.
    • Place in a sunny location.
  4. Caring for Seedlings and Mature Plants:
    • Water when the top inch of soil is dry.
    • Ensure 6-8 hours of sunlight daily.
    • Fertilize every 4-6 weeks during the growing season.
    • Prune regularly to encourage bushy growth.

Tips for Success:

  • Light: Provide 6-8 hours of direct sunlight daily.
  • Watering: Allow soil to dry slightly between waterings.
  • Humidity: Prefer dry conditions; avoid over-misting.
  • Temperature: Keep above 40°F (4°C).
  • Pests: Monitor for aphids, spider mites, and powdery mildew; treat with natural remedies.

By following these steps, you can successfully grow rosemary in pots from cuttings or seeds, ensuring a steady supply of this aromatic herb for your culinary and ornamental needs.

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