"Globosa Blue Spruce" refers to the Picea pungens 'Globosa,' commonly known as the Globe Blue Spruce or Dwarf Globe Blue Spruce. This is a popular cultivar of the Colorado Blue Spruce (Picea pungens), a coniferous evergreen tree native to the Rocky Mountains.

Here are some key features and information about the Globe Blue Spruce:

1. Form: 'Globosa' is a dwarf, compact, and rounded form of the Colorado Blue Spruce. It typically grows in a dense, globe-like shape.

2. Foliage: The needles of the Globe Blue Spruce are silvery-blue to blue-green in color, providing a distinctive and attractive appearance. The needles are stiff and prickly.

3. Size: This cultivar is considered a slow-growing and small tree. It typically reaches a mature height of about 3 to 5 feet, with a similar spread, over many years.

4. Sun Requirements: Globe Blue Spruce thrives in full sun to partial shade. It tends to have more compact growth and better coloration in full sun.

5. Soil: Well-draining soil is essential for the Colorado Blue Spruce, including the 'Globosa' cultivar. It prefers slightly acidic to neutral soil.

6. Hardiness: Globe Blue Spruce is hardy in USDA Hardiness Zones 2 to 8, making it well-suited for colder climates.

7. Landscape Use: This dwarf spruce is often used as an accent plant, specimen, or in rock gardens. Its compact size and unique color make it a valuable addition to various landscapes.

8. Maintenance: 'Globosa' Blue Spruce is relatively low-maintenance. While pruning is generally not necessary, occasional shaping can be done to maintain its rounded form.

The Globe Blue Spruce is valued for its ornamental appeal, especially in smaller gardens or areas where a compact, slow-growing evergreen is desired.