Bird's Nest Spruce (Picea abies 'Nidiformis') is a slow-growing, dwarf evergreen conifer known for its unique, dense, mounding habit with a central depression resembling a bird's nest, ideal for small gardens or borders, thriving in full sun to partial shade with well-drained soil, offering fine texture and year-round green color. 
Key Characteristics:
Form: A flattened globe or cushion, wider than it is tall, with horizontal branches and a distinct "nest" in the center as it matures.
Foliage: Short, bright lime-green needles in spring, maturing to a handsome dark green.
Size: Slow-growing, typically reaching 2-3 feet high and 4-6 feet wide, though it can get larger in ideal conditions.
Texture: Fine, dense foliage that provides great contrast in landscapes. 
Growing Conditions:
Sunlight: Full sun to partial shade (at least 6 hours of sun).
Soil: Prefers moist, well-drained, average to slightly acidic soils; avoids standing water.
Hardiness: Very hardy (Zones 2-8), adaptable to urban pollution, and tolerant of environmental salt.