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Basil Grow Guide: How to Plant, Grow and Harvest Basil
Rosmarinus officinalis
A perennial herb with needle-like leaves, woody stems and a pungent, pine-like aroma and flavor. It is well loved for its culinary and medicinal uses.
Growing Tips: Sow more seeds than you will need as rosemary is one of the more challenging seeds to grow. Start indoors 10-12 weeks before your last frost date in a warm, 70˚ environment.
Check out our Rosemary Grow Guide for in-depth growing instructions.
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Organic Rosemary
Variety Info
expand_moreGrowing Tips
expand_moreWhen to Sow Outdoors:
When to Start Indoors: (Recommended for best results)
Days to Emerge: 20–30 days—rosemary seeds take longer to germinate than most herbs
Light Requirements: Requires bright, indirect light when grown indoors; use a grow light if natural light is insufficient
Moisture Needs: Keep soil consistently moist but not waterlogged during germination—mist lightly to prevent disturbing the surface
Seed Depth: Sow seeds ⅛ inch —lightly press seeds into the soil but do not bury them, as they need light to germinate
Seed Spacing: Plant 5 seeds together in clusters in seed cells and small pots, or outdoors every 12 inches to increase the chances of establishing strong seedlings
Row Spacing: Maintain 36 inches between rows for adequate air circulation and healthy root development
Thinning: Once seedlings reach about 1 inch tall, thin to one strong plant per 12-inch space. For perennial rosemary, allow 36 inches between mature plants to accommodate its woody, shrub-like growth
Days to Maturity: Fully matures in 180 days, though young sprigs can be harvested earlier
Drought Tolerant Once Established: Requires well-draining soil and should not be overwatered—allow soil to dry out between watering
Best Growth in Containers: Ideal for pots and raised beds, especially in regions with cold winters. Can be brought indoors and grown as a year-round culinary herb
NOTE: Rosemary has a naturally slow and selective germination process, so planting a few extra seeds helps ensure a good number of strong seedlings. With a little patience and the right conditions, seedlings will develop into hardy, long-lasting perennial plants that thrive for years
Learn More
expand_moreGet the most out of your rosemary with our Rosemary Grow Guide—packed with expert tips and step-by-step instructions for a thriving herb garden!
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