'Rosa spithamea S.Watson' Rose

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'Rosa spithamea S.Watson' rose Description

My HMF:

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'<i>Rosa spithamea</i> S.Watson' rose photo

Photo courtesy of brunob

Availability:

Commercially available

Synonyms:

• Ground Rose
• Rosa granulata Greene Synonym

HMF Ratings:

6 favorite votes.

ARS:

Medium pink Species.

Class:

Species / Wild.

Bloom:

Deep pink. 5 petals. Average diameter 1.25". Small, single (4-8 petals), borne mostly solitary, in small clusters bloom form. Once-blooming spring or summer.

Habit:

Short, armed with thorns / prickles, sends out runners. Small foliage. 5 to 9 leaflets.

Height: 6" to 2' (15 to 60cm).

Growing:

USDA zone 6b through 9b (default). Drought resistant.

Patents:

Patent status unknown (to HelpMeFind).

Ploidy:

Diploid

Parentage:

If you know the parentage of this rose, or other details, please contact us.

Notes:

The original botanical descriptions describe the prickles as spare or few, while the more current description describes them as many and straight. This is confusing.
R. granulata Greene, Leafl. Bot. Observ. Crit. 2:262 (1912)

California authority on Rosa spithamea, Barbara Ertter, describes it as "part of California's well known fire-following flora. Plants persist between fires not as seeds but as inconspicuous, rarely flowering members of the scrub...Apparently only after fire removes the overstory, and covers the ground with nutrient-rich ash, does Rosa spithamea flourish and put on a prominent display of abundant flowers." Dr. Ertter goes on to note: "The short habit and colorful fall foliage of the Coast Ground Rose suggest significant horticultural potential, but the possible fire requirement might be at odds with the average gardening regime." From Native California Roses (2001) Barbara Ertter.
See also Rosa sonomensis.