Conifer

Arizona cypress 'Fastigiata'

Cupressus arizonica 'Fastigiata'

Upright narrow pyramidal evergreen cypress. Adult height varies around 8–20 m. Gardmi uses a 3 m crown for a slender garden specimen; old trees may spread 4–8 m (RHS). The 4 m root zone is a planning allowance. RHS H4: assess local winter minima and shelter from cold drying winds before planting outdoors.

Use in planner

Planning parameters

Use these values as a practical planning envelope: they describe the adult plant, not the young seedling.

Adult height: 8-20 m
Crown diameter: 3 m
Root zone: 4 m
Root type: Root spread depends on soil and moisture
Recommended setback: Allow for the mature crown and check local boundary rules
Growth rate: 20–50 years to maturity
Hardiness: RHS H4 (−10…−5 °C)
Crown density: Dense

Site requirements

These conditions decide whether the plant will establish well after planting.

Light: Full sun
Watering: Water regularly while establishing; avoid waterlogging
Soil type: Well-drained soil
Drainage: Avoid standing water
Soil pH: Acidic, neutral or alkaline

Root system and placement

The root-zone circle is a planning allowance, not a measured root boundary or a statutory setback

Garden role and season

These fields help choose the plant by composition, privacy, flowering and year-round value.

Form: Upright, columnar
Foliage: Silvery blue-green evergreen scales
Season: Year-round
Bloom: Inconspicuous pollen cones
Fruit: Small woody cones; not edible
Garden use: Specimen planting and evergreen structure

Care and risks

This is the practical part for future maintenance and safe placement on the plot.

Maintenance: Mulch clear of the stem; monitor soil moisture in summer
Pruning: Usually no pruning needed; trim green growth for shaping
Risks: Root rot in waterlogged soil; watch for aphids