Illustration
Blue Moon Sawara Cypress
Chamaecyparis pisifera 'Blue Moon'
Also called blue moon false cypress
Blue Moon Sawara Cypress is grown for its foliage rather than flowers, giving the garden structure and color all season long.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Blue Moon Sawara Cypress
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 4–8. Expect it to reach about 2.5 ft tall and 3 ft wide at maturity, in roughly 10 years (checked).
Pets
- Not yet checked for pets.
Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.
No toxicity note is on file for Blue Moon Sawara Cypress. That is not a clearance: check its safety for people and pets before planting.
What was checked
Mature height and spread, hardiness zones, sun, water, bloom months and color and the trait tags were checked against named botanical sources for this plant, with what the sources could not settle written down; years to mature size rests on a recorded house rule where no publisher states one, and is marked so; its common name and alternate names have not been checked yet. Each fact above carries its own mark. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.
When to plant Blue Moon Sawara Cypress
Plant Blue Moon Sawara Cypress in spring once the soil is workable, or by very early fall at the latest: an evergreen needs its roots down well before the ground freezes. In zone 6, the middle of its hardy zones 4 to 8, that is March to May, or August on the fall side.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Blue Moon Sawara Cypress get?
2.5 fttall5 ft 7 inan adult3 ftwideSee Blue Moon Sawara Cypress in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
How far apart to plant Blue Moon Sawara Cypress
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Blue Moon Sawara Cypress about 3 ft apart, center to center, so each plant has room to reach its full width.
Add Blue Moon Sawara Cypress to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.
Where these facts come from
Blue Moon Sawara Cypress' height, spread, hardiness zones, sun, water, years to mature size, trait tags, soil, diseases, pests and toxicity were checked against 12 published sources on October 11, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources. Bloom was checked as well: Blue Moon Sawara Cypress bears no flowers, so there is no bloom window for a source to carry.
- Plant Addictsthe queue's storeheight, spread, hardiness zones, sun, water, trait tags, soil, diseases, pests and toxicity
- NC State ExtensionSPECIES page, Chamaecyparis pisiferaheight, hardiness zones, sun, water, trait tags, soil, diseases, pests and toxicity
- RHSRoyal Horticultural Societyheight, spread, sun, water, trait tags, soil, diseases, pests and toxicity
- e-katalogroslin.plZwiązek Szkółkarzy Polskich (Polish Nurserymen Association), e-katalog...height, spread, hardiness zones, sun, water, years to mature size, trait tags and soil
- iselinursery.comIseli Nursery (Boring, Oregon; the introducer, a wholesale conifer gro...height, spread, hardiness zones, sun, water, trait tags and soil
- Oregon State UniversityDepartment of Horticultureheight, spread, hardiness zones, sun, water, years to mature size and trait tags
- Internet Archive (archived page)Bloom River Gardens (Springfield, Oregon; a nursery that sells the pla...height, spread, hardiness zones, sun, years to mature size and soil
- coniferkingdom.comConifer Kingdom (Silverton, Oregon; a nursery that sells the plant)height, spread, hardiness zones and sun
- Chicago Botanic GardenGlencoe, Illinoishardiness zones, sun and water
- nurseryguide.comNursery Guide, Oregon Association of Nurseries (the listing Iseli Nurs...height, spread and hardiness zones
- iselinursery.comIseli Nursery ("Garden Size" Explained; a definition page, not about t...height
- iselinursery.comIseli Nursery, its 2026 / 2027 catalog (the introducer's own catalog,...height
How the checking works, and what each standard covers, is on the verified plants page.
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Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.