Growing Rosemary Herb Seed

  • Days to Maturity: Tender perennial, annual in cold climates
  • Hardiness Zone: 8-11
  • Planting Depth: Sprinkle on top of soil
  • Plant Spacing: 2-3’
  • Growth Habit: Upright
  • Soil Preference: Dry and well-drained
  • Temp Preference: Warm
  • Light Preference: Full sun
  • Color: Dark-green with blue-violet flowers
  • Flavor: Pine, resinous with slight bitterness

Sowing and Growing

Sow rosemary seeds inside 10-12 weeks before the last frost. Press onto the soil surface or barely cover, as light aids germination. Germination can take up to 21 days. Plants are ready for the garden when they have around 10 true leaves. Rosemary prefers dry conditions. In warm winter areas, rosemary is a perennial—blooming at low, but not freezing temperatures.


Cut pine-like rosemary sprigs anytime during the season from well established plants. Spread out harvest giving the plant time to recover. Rosemary is used fresh or dried. Cut long branches, strip off leaves and use them for kabobs. Rosemary roasted chicken is a classic, as it adds a lovely flavor to pork and other fatty meats. Hang small bundles and when completely dry, strip rosemary leaves off and store in a cool, dark location.

Explore these Rosemary Herb Seed Varieties:

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