Daboecia cantabrica
Irish Heath
 
 
D.c. 'Alba'

Height:   30-45 cm (12-18”)
Spread:  

60-75 cm (24-30”)

Soil:   Well-drained acidic soil with peat moss.
Exposure:   Full sun or partial shade.
Flowers:   White bell-shaped flowers from June - October.
Cold Hardiness:   Zone 6-8 (hardy to -23°C or -10°F)
Suggested Uses:   Mass plantings.
General Information:   Upright habit.

 
 
D.c. 'Waley's Red'

Height:  

30-45 cm (12-18”)

Spread:  

45-60 cm (18-24”)

Soil:   Well-drained acidic soil with peat moss.
Exposure:   Full sun or partial shade.
Flowers:   Deep magenta (H14) bell-shaped flowers with a hint of blue; June-October.
Cold Hardiness:   Zone 6-8 (hardy to -23°C or -10°F)
Suggested Uses:   Mass plantings.
General Information:   Spreading; Mid-green foliage.


  source
Draba brunifolia
Whitlow Grass

Height:   5 cm (2")
Spread:   8 cm (3")
Soil:   Gritty, well-drained soil.
Exposure:   Full sun.
Flowers:   Yellow flowers in early spring.
Cold Hardiness:   Zone 3 (hardy to -40°C or -40°F)
Suggested Uses:   Perfect for rock gardens.
General Information:   Evergreen.


Dryopteris  
   
D. dilatata 'Lepidota Cristata'
Lacy Crested Buckler Fern
Broad Buckler Fern

Height:   30-60 cm (12-24")
Spread:   60-90 cm (24-36")
Soil:   All soil types.
Exposure:   Full to partial shade.
Cold Hardiness:   Zones 4-10 (hardy to -34°C or -30°F)
Suggested Uses:   Moist shady areas.
General Information:   Semi evergreen; Midribs and stalks on fronds covered in brown scales; Deer and rabbit resistant.

D. filix-mas 'Barnesii'
Barnes' Narrow Male Fern
Barnes' Wood Fern

Height:   75-90 cm (30-35")
Spread:   30-45 cm (12-18")
Soil:   Moist or wet soil.
Exposure:   Full to partial shade.
Cold Hardiness:   Zones 2-9 (hardy to -46°C or -50°F)
Suggested Uses:   Moist woodland area; Accent.
General Information:   Deciduous; Delicate, deep green, ruffled fronds; Deer and rabbit resistant.

 
 
D. filix-mas 'Linearis Polydactyla'
Slender Crested Male Fern
Many Fingered Male Fern

Height:   75-120 cm (30-47")
Spread:   60-90 cm (24-36")
Soil:   Moist soil.
Exposure:   Full to partial shade.
Cold Hardiness:   Zones 2-9 (hardy to -46°C or -50°F)
Suggested Uses:   Moist shady areas; Mixed containers and borders.
General Information:   Deciduous; Delicate and skeletal appearance; Light green foliage; Deer and rabbit resistant.


Dymondia margaretae
Silver Carpet

Height:   2.5 cm (1”)
Spread:   30-45 cm (12-18”)
Soil:   Well-drained, low nutrient soil.
Exposure:   Partial to full sun.
Flowers:   Bright yellow flowers in summer.
Cold Hardiness:   Zone 7-11 (hardy to -18°C or 0°F)
Suggested Uses:   Lawn substitute; Between paving stones; Rock gardens; Erosion control.
General Information:   Semi-evergreen; Grey and silver accented foliage; Drought tolerant; Deer resistant.