Picea pungens St. Marys Broom

St Mary's Blue Spruce

St. Mary’s Broom Colorado Spruce (Picea pungens ‘St. Mary’s Broom’) forms a low mound of blue needles. The needles are relatively long for such a small plant, giving the cushion a bold texture at close range.

The cultivar maintains its rounded, spreading habit without readily developing a central leader. Its restrained growth suits a rock garden, container or foreground position in a conifer collection. Leave the top visible so its shape and blue foliage can be appreciated.

Plant in sun with well-drained soil and water during establishment. Cool, relatively dry climates suit Colorado spruce better than hot, humid summers.

Approximate garden size
• Width: 2 ft; larger with age
• Height: 1 ft; larger with age

Hardiness
• Hardy to USDA Zone 2; upper limit varies with climate

Best Uses
• Rock Garden
• Container
• Accent Plant

Plant type

Conifer, Dwarf Conifer, Evergreen Shrub

Height

1 ft+

Width

2 ft+

Hardiness zones

2–7

Sunlight

Full Sun

Growth rate

Very Slow

Bloom time

Does not flower

Flower color

None

Leaf color

Blue

Fall color

Blue

Soil

Moist well-drained

Landscape use

Accent Plant, Container, Rock Garden

Shape

Low Mounding, Rounded

Fruit

No

Fragrant

No

Deer resistant

Yes

Salt tolerant

No

Drought tolerant

No