Arp Certified Organic Rosemary
Description
Arp Rosemary (Rosmarinus officinalis ‘Arp’) is the cold-hardiest rosemary variety available — tolerating temperatures down to 10°F, making it the first choice for home growers who love rosemary but live in climates where most varieties don’t survive winter outdoors. The stiff, upright habit, needle-like gray-green foliage, and soft blue spring blooms make it as beautiful in the landscape as it is essential in the kitchen, with the full, clean, piney rosemary fragrance and flavor that defines Mediterranean cooking. USDA-Certified Organic, drought tolerant once established, and performing reliably as a perennial in Zones 6–10. Arrives potted in quality soil and ready to plant.
Cold Hardy to 10°F — Rosemary for Northern Gardens
Standard rosemary varieties typically survive down to around 20–25°F — which limits outdoor growing to the warmest parts of the country. Arp extends that range significantly, tolerating temperatures down to 10°F and performing as a reliable outdoor perennial through Zone 6. For home gardeners in Zone 6 and the warmer parts of Zone 5 who have struggled to overwinter rosemary, Arp is the variety that finally makes year-round outdoor rosemary practical.
USDA-Certified Organic — Ready to Plant
Every Stark Bro’s Arp Rosemary arrives USDA-Certified Organic, potted in quality soil, and ready to plant. Harvest sprigs as needed throughout the growing season — the piney, aromatic flavor is outstanding for roasting meats, seasoning vegetables, infusing oils, and flavoring breads. Prune lightly after flowering to maintain shape and encourage vigorous new growth.
Upright Habit — Beautiful as a Border or Hedge
Arp’s stiff, upright growth habit and attractive gray-green needle foliage give it a strong landscape presence — more structured and architectural than spreading rosemary varieties. At 3–4 feet tall, it works beautifully as a fragrant border plant, can be trimmed into an informal hedge, or grown as an attractive container specimen that moves indoors for winter in climates colder than Zone 6.
Why Growers Love Arp Rosemary
- Cold hardy to 10°F — the most cold-tolerant rosemary variety available
- USDA-Certified Organic — arrives potted in quality soil, ready to plant
- Full piney rosemary flavor — outstanding for roasting, seasoning, infusing, and baking
- Upright architectural habit — beautiful as a border, hedge, or container plant
- Soft blue spring blooms — ornamental and pollinator-friendly
- Drought tolerant once established — low-maintenance perennial in Zones 6–10
Survival Guaranteed!
Since 1816, Stark Bro’s has promised to provide customers with the very best fruit trees and plants. It’s just that simple. However, because annual plants are naturally short-lived and complete their life cycle in a single growing season, our standard one-year survival guarantee does not apply to annuals. If your annuals arrive damaged or fail to thrive within the first 14 days after delivery, please contact us immediately so we can make it right. For all other plants, our full one-year warranty still applies. Read more about our warranty policy.
Characteristics
| Characteristic Name | Value |
|---|---|
| Bloom Color | Blue |
| Hardiness Zone Range | 6 - 10 |
| Pollination | Not Required |
| Shade/Sun | Full Sun |
| Characteristic Name | Value |
|---|---|
| Soil Composition | Loamy |
| Soil Moisture | Well Drained |
| Soil pH Level | 6.0 - 7.0 |
| Years to Bear | 1 |
Size & Spacing
Mature Size
Recommended Spacing
Zone Compatibility
Pollination
Pollination is not required for this variety.
Tools & Supplies
Planting & Care
Learn all about how to grow herbs in The Growing Guide. An entire section of our website dedicated to your growing success.

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