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Picea mariana 'Nana' AGM

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© RHS 2001

Characteristics

Plant type

Shrub or Conifer

Habit

Bushy

Resilience

Hardiness

H7 (very hardy)

Colour

Foliage

Green and Dark Grey/Silver in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

10-20 years


Preferred common name

dwarf black spruce

Family

Pinaceae


Picea are evergreen trees with rigid, needle-like leaves arranged singly all round the shoots, and narrow, leathery-scaled cones borne near the ends of the shoots

'Nana' is a slow-growing evergreen conifer making a dwarf shrub of dense rounded habit, with grey-green, needle-like foliage

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing, West-facing or East-facing
  • Exposed or Sheltered

Cultivation

Grows best in moist but well-drained acidic soil but will tolerate some alkalinity

Soil

  • Moist but well-drained
  • Acid or Neutral
  • Sand, Clay or Loam

Propagation

Propagate by seed sown in containers in a cold frame in spring or grafting in winter. Hardwood cuttings can be taken in late summer

Suggested planting locations and garden types

Architectural, City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds, Low Maintenance, Patio/Container Plants or Rock Garden


How to care

Pruning

No pruning required

Pests

May be attacked by adelgids, aphids and conifer red spider mite

Diseases

Generally disease free