Herb / Warm season
Arp Rosemary
Patio containers and sunny herb beds with excellent drainage.
Resinous evergreen leaves for roasting and breads.
Seed spacing and maturity
- Days to maturity
- 120
- Germination temperature
- 65-80F
- Seed depth
- 0.125 inches
- Spacing
- 18 inches
- Row spacing
- 24 inches
- Start method
- Start indoors
Frost-date timing
- Indoor start
- 10 weeks before last frost
- Transplant
- 14 days after last frost
Action plan
- Can I plant this now?
- Use your local last-frost, first-frost, and soil-temperature checks before treating this crop as plantable today.
- Start indoors or direct sow?
- Start indoors, harden off, then transplant into the final bed when local timing is safe.
- How much space?
- 18 inches in-row spacing, 24 inches between rows, and 0.125 inch seed depth.
- Best companions?
- Use this as part of a diverse flowering or herb planting, and treat companion claims as site-specific rather than guaranteed pest control.
- Common failure modes?
- Avoid wet winter soil and heavy overwatering. Let the soil surface dry between waterings once established. Very well-drained, lean to moderately fertile soil.
Growing profile
- Sun
- Full sun
- Water
- Let the soil surface dry between waterings once established.
- Soil
- Very well-drained, lean to moderately fertile soil.
- Watch
- Avoid wet winter soil and heavy overwatering.
- herb
- perennial
- containers
- pollinators
Browse context
- Herb Catalog Category collection
- Mint Family Rotation and family context
- Warm Season Seeds Season collection
- Start Indoors Seeds Start-method collection
- Container-Friendly Seeds Practical trait collection
- High Pollinator Value Seeds Practical trait collection
Related varieties
- Common Anise Carrot family · Warm season · 120 days
- Green Globe Artichoke Aster family · Warm season · 120 days
- Delicata Winter Squash Cucurbit family · Warm season · 100 days
- Small Sugar Pumpkin Cucurbit family · Warm season · 100 days
- Waltham Butternut Squash Cucurbit family · Warm season · 95 days
- Black-Eyed Susan Aster family · Warm season · 90 days
Source: UMN starting seeds indoors