Picea mariana 'Nana' (Black Spruce)
Black Spruce 'Nana', Bog Spruce 'Nana', Swamp Spruce 'Nana', Dwarf Black Spruce
Very popular, Picea mariana 'Nana' (Black Spruce) is a dwarf evergreen conifer forming a compact cushion of dense, rounded habit. Prized for its tiny, tightly congested blue-green needles, small size and lovely texture, it is an excellent choice as a specimen for rock gardens, foundation plantings or shrub borders. Extremely slow-growing, 2 in. per year (5 cm), it is highly resistant to insects and disease and requires little to no maintenance.
- Winner of the prestigious Award of Garden Merit of the Royal Horticultural Society.
- Grows up to 2 ft. tall (60 cm) and 3 ft. wide (90 cm).
- Performs best in full sun in moist, acidic, well-drained soils. Prefers cool climates and will struggle in hot and humid climate areas.
- No serious pest and disease issues. Keep an eye out for adelgids, aphids and conifer red spider mite.
- No pruning required.
- Propagate by seed sown in containers in a cold frame in spring or grafting in winter. Hardwood cuttings can be taken in late summer.
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Requirements
| Hardiness | 3
– 7 |
|---|---|
| Heat Zones | 1
– 6 |
| Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, A1, A2, A3 |
| Plant Type | Conifers, Trees |
| Plant Family | Picea - Spruces |
| Exposure | Full Sun |
| Season of Interest |
Spring (Early,Mid,Late) Summer (Early,Mid,Late) Fall Winter |
| Height | 1' – 2' (30cm – 60cm) |
| Spread | 2' – 3' (60cm – 90cm) |
| Spacing | 36" (90cm) |
| Water Needs | Average |
| Maintenance | Low |
| Soil Type | Clay, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Plant of Merit, Showy, Evergreen |
| Garden Uses | Beds and Borders, Patio and Containers |
| Garden Styles | City and Courtyard, Gravel and Rock Garden, Informal and Cottage |
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Maria Evseyeva, Shutterstock
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Requirements
| Hardiness | 3
– 7 |
|---|---|
| Heat Zones | 1
– 6 |
| Climate Zones | 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, A1, A2, A3 |
| Plant Type | Conifers, Trees |
| Plant Family | Picea - Spruces |
| Exposure | Full Sun |
| Season of Interest |
Spring (Early,Mid,Late) Summer (Early,Mid,Late) Fall Winter |
| Height | 1' – 2' (30cm – 60cm) |
| Spread | 2' – 3' (60cm – 90cm) |
| Spacing | 36" (90cm) |
| Water Needs | Average |
| Maintenance | Low |
| Soil Type | Clay, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Moist but Well-Drained |
| Characteristics | Plant of Merit, Showy, Evergreen |
| Garden Uses | Beds and Borders, Patio and Containers |
| Garden Styles | City and Courtyard, Gravel and Rock Garden, Informal and Cottage |
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