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Products > Cupressus guadalupensis 'Greenlee's Blue Rocket'
 
Cupressus guadalupensis 'Greenlee's Blue Rocket' - Greenlee's Guadalupe Cypress

San Marcos Growers has permanently closed as a business. This is an archived page preserved for informational use.  
Image of Cupressus guadalupensis 'Greenlee's Blue Rocket'
[2nd Image]
Habit and Cultural Information
Category: Tree
Family: Cupressaceae (incl. Taxodiaceae) (Cypresses)
Origin: California (U.S.A.)
California Native (Plant List): Yes
Evergreen: Yes
Flower Color: Insignificant
Bloomtime: Not Significant
Synonyms: [Hesperocyparis, 'Greenlee's Silver Rocket']
Height: 40-60 feet
Width: 6-8 feet
Exposure: Full Sun
Seaside: Yes
Summer Dry: Yes
Deer Tolerant: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 15-20° F
Cupressus guadalupensis 'Greenlee's Blue Rocket' (Greenlee's Blue Rocket) - This is an evergreen upright and narrow growing tree with silvery-gray foliage. The oldest planted specimen known was growing in John Greenlee's garden in Pomona, California and it exhibited a much narrower growth habit than is typical of the species. Although ultimate height and width are still unknown, it will probably grow to at least 45 feet tall by 6-8 feet wide.

Plant in full sun and given occasional to infrequent irrigation. This tree is drought tolerant with a cold hardiness of 15 degrees F. This is a wonderful selection of a western native cypress that looks like a rocket ship sprouted in the garden.

Cupressus guadalupensis's native habitat is on Guadalupe Island 130 miles west of southern Baja California, where it grows at elevations about 2,500 feet. In this habitat it is known to reach nearly 60 feet tall with a broad rounded head. It is closely related to the Tecate Cypress, Cupressus guadalupensis var. forbesii, which has a range on the mainland from Mexico into southern California. Recent genetic research has shown that the Western Hemisphere cypresses are a well-supported clade that are quite separate from the Eastern Hemisphere species and a new genus, Hesperocyparis, has been erected for the New World cypresses while the Old World plants retain the name Cupressus. We are currently leaving this plant listed as Cupressus until this change becomes widely accepted.

We were given this plant by John Greenlee in the mid 1990s as a fastigiate form of Cupressus guadalupensis that he had selected from a seed lot that was grown by and from seed collected by David Amme. John had planted the original tree in his Pomona garden and in 2001 and we took our first cuttings of it. By 2002 we were ready to sell our first crop and since it lacked a cultivar name we came up with a name to describe this plants unique erect form with its blue-gray foliage and credit the man we got it from, naming it 'Greenlee's Blue Rocket'. We first listed it in our 2002 catalog under this name and continue to offer it as such. We continue to grow another plant from Guadalupe Island, Senecio palmeri 'Silver and Gold' and we also used to grow the Guadalupe Palm Brahea edulis. 

The information displayed on this page about Cupressus guadalupensis 'Greenlee's Blue Rocket' is based on our research conducted about this plant from books in our nursery library as well as from information that is provided by reliable online resources. We also have included our own observations made about it as it grew in the nursery gardens and other gardens visited, as well how the crops of this plant performed in the containers when we had them in our nursery field. We also include comments received from others and welcome hearing from anyone who has information about this plant, particularly if it includes cultural information aiding others to better grow it.

 
We closed for regular business at the end of 2025 in order for the property to be developed for affordable housing.
Our gates remain closed but we will open them by appointment to interested parties as we liquidate remaining supplies and equipment.
 
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