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Plant guide

Blue cypress.

Cupressus macrocarpa

Pronounced hes-per-oh-SY-par-is mak-roh-KAR-pah

Also known as Monterey cypress, monterey-cypress

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Cupressus sempervirens
Photo by zebedeugalinha (CC BY) via iNaturalist

The Monterey cypress is a beautiful evergreen conifer known for its bright, lemon scented foliage. It thrives in coastal environments and makes a striking specimen tree. You will love the vibrant color it adds to your garden throughout the year.

At a glance

Care level
Moderate
Plant type
Evergreen conifer
Light
Full sun to partial shade
Indoor light
Bright indirect
Water
Every 5 to 10 days
Mature size
10 to 25 meters
Growth rate
Medium
Hardiness
USDA 7 to 10
Bloom time
Late winter to early spring

Care

Water regularly while the tree is young, then let the soil dry out between waterings once it is established, and never let it become soggy to prevent root rot. Provide plenty of bright light and good air circulation to keep the foliage healthy. Watch for browning needles which often indicate the plant is too dry or lacks sufficient light.

Watering
Water when the top inch of soil feels dry to the touch.
Feeding
Apply a balanced liquid fertilizer during the active growing season.
Pruning
Lightly trim in late spring to maintain the desired shape and density.
Repotting
Repot every few years when the roots begin to crowd the container.
Soil
Well draining sandy or loamy soil
Soil pH
Neutral to slightly acidic
Temperature
-7 to 35°C
Humidity
40 to 70%
Drought tolerance
High
Lifespan
Perennial, typically 50 to 100 years in cultivation.
Fragrance
Strong
Deer and rabbits
Moderate

Signs it needs repotting

  • Roots growing out of the drainage holes.
  • Water running straight through the pot without soaking in.

Safety

People
The plant is generally considered non toxic but the sap can cause skin irritation in sensitive individuals.
Pets
This plant is generally considered non toxic to cats and dogs.
Children
The small, hard cones may pose a choking hazard if swallowed by small children.
Contact allergens
Contact with the foliage or sap may cause mild skin irritation for some people.
Airborne allergens
The pollen can be a significant allergen for those sensitive to conifer pollen during the spring.
Edibility
The foliage and cones are not for human consumption and can cause digestive upset if ingested.

How to identify it

  • Bright yellow green needle like foliage
  • Distinctive lemon fragrance when crushed
  • Small woody cones
  • Upright columnar growth habit
Height
10 to 25m
Spread
3 to 8m
Leaves
dark green, evergreen
Flowers
yellow, 0.5 to 1cm
Fruit
brown, Autumn

Problems to watch for

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    Growing it

    Propagation
    seed, cuttings
    When to plant
    autumn, spring
    Overwintering
    Ensure the soil is well drained to prevent root rot during wet winters. Protect young trees from heavy snow loads that might break branches.
    In containers
    It is not recommended for containers as it quickly outgrows any standard pot size.

    Seed

    1. 1. Collect cones in autumn.
    2. 2. Dry cones until they open.
    3. 3. Sow seeds in well draining soil.
    4. 4. Keep moist until germination.

    Plant in groups to create a natural windbreak that mimics its native coastal habitat.

    Grows well with

    • California Poppy · They share similar environmental needs and provide a nice color contrast.
    • Ceanothus · These shrubs thrive in the same coastal conditions and attract pollinators.

    Similar species

    • Leyland Cypress · Often used as a faster growing alternative for hedging.
    • Monterey Pine · Shares the same native coastal range and habitat requirements.

    Science

    Family
    Cupressaceae
    Genus
    Cupressus
    Order
    Pinales
    Class
    Pinopsida
    Native range
    Coastal central California, USA.
    Conservation
    This species is considered vulnerable in its limited native range due to habitat loss and disease.

    It thrives in cool, foggy coastal environments where it withstands salt spray and strong winds.

    Value to wildlife
    provides nesting cover, seeds for birds
    Pollinators
    bees, beetles
    Uses
    windbreak, ornamental specimen, coastal hedge

    Through the year

    JFMAMJJASOND
    Flowering
    Fruiting
    Foliage

    Ecological indicators

    Light
    8/9
    Temperature
    6/9
    Nutrients
    4/9
    Salinity
    7/9
    Soil reaction
    6/9
    Moisture
    4/9

    Taxonomy resolved against GBIF.

    Questions people ask

    Can I grow this in a pot?
    It is not well suited for long term container growth due to its massive size.
    How often should I water it?
    Water regularly until established, then it becomes quite drought tolerant.

    Where the name comes from

    The specific epithet macrocarpa refers to the large cones compared to other cypress species.

    Good to know

    • It is native to only two small groves on the Monterey Peninsula in California.
    • The wood is highly resistant to rot and was historically used for boat building.
    • It grows very quickly when young, often adding several feet per year.

    Also in

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    This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.