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Hesperocyparis sargentii

Endemic to California's Coast Range, this drought-tolerant evergreen conifer typically reaches 10–15 m, has dull grey-green scale leaves, exhibits fire-adapted reproduction and serotinous cones that release seeds after fire on serpentine soils, and is listed as Vulnerable by the IUCN.

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Common Names

Sargent Cypress, Sargent's Cypress

Summary

Sargent's cypress is a California-endemic evergreen conifer of the Coast Ranges, from Mendocino to Santa Barbara. It typically reaches 10–15 m in height, with larger individuals over 22 m, and serpentine-site pygmy forests reaching about 2.4–3.6 m. Distinctive features include dull gray-green scale-like leaves, brown fibrous bark, and a pyramidal to rounded or irregular crown. The species has serotinous cones that open after heat to release wind- and rain-dispersed seeds; germination requires bare mineral soil, producing shade-intolerant seedlings that regenerate after fire.

Culture and uses: It prefers full sun to partial shade with well-drained soils, tolerates drought once established, and is deer-resistant. It propagates by seeds, with scarification (soak 24 hours) and cold stratification (about 30 days). Seeds are planted about 1/16 inch deep, and seed beds are mulched. Seeds germinate in a bare mineral-soil seedbed, and post-fire regeneration is common due to serotinous cones. Historic wood uses include fence posts, exterior joinery, shingles, and boats, with potential for other uses. Practical considerations include managing fire regimes to support regeneration.

Lifecycle

Perennial

Height

30-75 feet

Spread

10-20 feet

Hardiness Zones

Zones 8-9

Sunlight Requirements

Full sun to partial shade.

Soil Type

Serpentine soils, well-drained, shallow

Soil Drainage

Well-drained soils

Soil pH

6.0–7.5 (slightly acidic to neutral)

Bloom Color

Yellow

Bloom Time

Spring and Fall

Foliage Color

Green

Fall Foliage Color

Green (evergreen)

Leaf Lifecycle

Evergreen needle

Growth Rate

1–2 feet per year (30–60 cm/year)

Seasons of Interest

Spring, Summer, Fall, Winter

Propagation Methods

Seeds, Cuttings

Attracts Wildlife

Attracts birds, butterflies and moths

Taxonomy

Taxonomic Rank
Species
Author
(Jeps.) Bartel
Publication
Phytologia 91: 183. (2009)

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Pinophyta
Class
Pinopsida
Subclass
Cupressidae
Order
Cupressales
Family
Cupressaceae
Genus
Hesperocyparis

Synonyms

Cupressus sargentii var. duttonii Neocupressus sargentii Cupressus goveniana var. sargentii Callitropsis sargentii Cupressus sargentii

References

Sargent Cypress. nwconifers.com.
Sargent's Cypress - Calscape. calscape.org.
Hesperocyparis sargentii - Sargent cypress. collections.botanicalgarden.ubc.ca.
Cupressus sargentii – The Wonderful World of Conif…. coniferales.com.
Hesperocyparis sargentii - Wikipedia. en.wikipedia.org.
🌲 Sargent Cypress Explained: Key Information. greg.app.
USDA Plants Database. plants.usda.gov.
Hesperocyparis sargentii, Sargent's cypress | US F…. research.fs.usda.gov.
Sargent Cypress Sargents Cypress (Hesperocyparis s…. sejahteraseeds.com.
Hesperocyparis sargentii - Sargent's Cypress – San…. shop.sbbotanicgarden.org.
Hesperocyparis sargentii - Useful Temperate Plants. temperate.theferns.info.
Cupressus sargentii | Threatened Conifers of the W…. threatenedconifers.rbge.org.uk.
Hesperocyparis sargentii. ucjeps.berkeley.edu.
Hesperocyparis (sargentii, macnabiana) - CNPS Alli…. vegetation.cnps.org.
Hesperocyparis sargentii - California Flora Nurser…. calfloranursery.com.
Cupressus sargentii (Sargent's cypress) descriptio…. conifers.org.
Hesperocyparis sargentii - USDA Forest Service. fs.usda.gov.
Sargent Cypress | One Tam. onetam.org.
How to Grow and Care for Sargent's cypress. picturethisai.com.
Hesperocyparis sargentii - Trees and Shrubs Online. treesandshrubsonline.org.
Hesperocyparis sargentii - Wikipedia. wikipedia.com.
World Flora Online. worldfloraonline.org. June 2024.