Collingwood Ingram Rosemary (Rosmarinus officinalis 'Collingwood Ingram')

Collingwood Ingram Rosemary

1 Gallon

$16.90

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Collingwood Ingram Rosemary

Rosmarinus officinalis 'Collingwood Ingram'

A semi-upright to arching rosemary with profuse, intense deep blue flowers and aromatic foliage.

$16.90

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Bay Area–Based Nursery

We specialize in plants grown and delivered in their original pots and soil.
Because of their size and weight, our plants are not suitable for long-distance shipping and are delivered locally to ensure health and quality.

While delivery is limited to our local service area, we’re happy to support garden design and plant selection remotely.

For local plant professionals, we’re always glad to connect and explore ways to support your customers.

Rosmarinus officinalis 'Collingwood Ingram' (also known as 'Ingramii', or 'Benenden Blue') is a vigorous, evergreen shrub prized for its semi-upright to arching habit, aromatic foliage, and profuse, deep blue flowers. This distinctive rosemary forms a broad, mounding shrub with soft, needle-like, gray-green to dark green leaves that radiate from arching, semi-trailing stems, releasing a strong, classic rosemary scent when brushed. While aromatic, it is not considered the best choice for culinary use compared to other varieties. From late winter through spring, and often sporadically into summer, it produces an abundance of small, two-lipped, tubular, intense deep blue flowers that are highly attractive to bees, butterflies, and other pollinators. With its excellent tolerance for heat, drought, salt spray, deer, poor soils, and seaside conditions, as well as its versatile, semi-upright to semi-trailing habit, it is an outstanding choice for slopes, cascading over walls, low hedges, foundation plantings, containers, and as a sprawling specimen.

Knowing how we measure the size?

When browsing our plants, you may notice size terms such as Gallon, Multi, or Stand. These describe how a plant is grown, containerized, or structured at the time of sale — not just its height. Understanding these terms will help you choose the right plant for your space and expectations.

🌱 Gallon Size (Container Size)

Gallon refers to the size of the nursery container the plant is currently growing in (e.g. 1 Gallon, 5 Gallon, 15 Gallon).

A larger gallon size generally means:
- A more established root system
- A sturdier plant
- Faster visual impact after planting
Example:
- 5 Gallon: Ideal for residential gardens, easy to handle, good balance of value and maturity
- 15 Gallon: More mature, provides quicker results in the landscape

Note: Gallon size does not guarantee a specific height, as growth varies by species.

🌳 Multi (Multi-Trunk / Multi-Branch Form)

Multi indicates the plant has multiple trunks or main stems growing from the base.

Commonly used for:
- Ornamental trees
- Feature plants
- Japanese maples, olives, crepe myrtles, etc.
Why choose Multi:
- Fuller, more sculptural appearance
- Strong visual presence even at younger ages
- Popular for design-focused landscapes

🌲 Stand (Single-Trunk / Standard Form)

Stand (short for Standard) refers to a single, dominant trunk with a raised or naturally formed canopy.

Commonly used for:
- Shade trees
- Street trees
- Orchard and structural plantings
Why choose Stand:
- Clean, classic tree form
- Easier clearance for walkways and lawns
- Preferred for long-term structure and uniformity

🌿 Choosing the Right Size

If you want instant impact → larger Gallon, Multi form
If you want long-term structure → Stand form
If you want flexibility and value → mid-size Gallon containers

If you’re unsure which size or form fits your project, our team is happy to help you select the best option based on your space, timeline, and design goals.

Foliage & Flowers: Needle-like, gray-green to dark green, aromatic leaves; profuse, small, two-lipped, tubular, intense deep blue flowers in late winter through spring .
Mature Height: 24-36 inches (2-3 ft)
Mature Spread: 36-48 inches (3-4 ft)
Growth Rate: Fast
Hardiness Zones: USDA 7-10
Light Requirement: Full sun (essential for best growth and flowering)
Core Benefits: Semi-upright, arching habit, profuse deep blue flowers, drought, heat, salt, and deer tolerant, low maintenance.
Best Uses: Slopes, cascading over walls, low hedges, foundation plantings, containers, coastal gardens, sprawling specimen.

Q: How is Collingwood Ingram different from other rosemary varieties?
A: It has a distinctive semi-upright to arching, semi-trailing habit (2-3 ft tall, 3-4 ft wide) and is noted for its exceptionally profuse, intense deep blue flowers. It is not considered the best choice for culinary use.

Q: Is it good for cooking?
A: While aromatic, it is not the best choice for culinary use compared to varieties like 'Tuscan Blue' or 'Blue Spires'. It is grown primarily for its ornamental flowers and sprawling habit.

Q: How much sun does it need?
A: For the densest growth and most abundant flowers, plant in full sun (at least 6 hours of direct sunlight daily).

Q: Can it cascade over walls?
A: Yes, its arching, semi-trailing habit makes it excellent for cascading over retaining walls and planting on slopes.

Q: How much water does it need?
A: Once established, it is highly drought tolerant. Water regularly during its first year, then little to no supplemental water is needed.