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Arctostaphylos nevadensis

Pinemat Manzanita · Snowmat Manzanita

Family EricaceaeGenus Arctostaphylos

A low shrub with red branches pressed flat across a gray rock, set with small oval leaves and pale hanging flowers
The whole plantWalter Siegmund (talk)CC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

The plant

Habit
subshrubPlants of the World Online
Habit
Perennial, Shrub, SubshrubPLANTS Database
Height
2.0 ft60 cmPLANTS Database
Flower
WhitePLANTS Database
Blooms
Early SummerPLANTS Database
Native range
California, Oregon, WashingtonGBIF Backbone Taxonomy

Growing conditions

Sun
Shade tolerance: LowPLANTS Database
Soil
Adapted to coarse, medium textured soilsPLANTS Database
Soil pH
6.0-8.4PLANTS Database
Moisture
Moisture use: LowPLANTS Database
Watering
Drought tolerance: HighPLANTS Database

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; PLANTS Database — USDA NRCS; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

Protocol

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    2/10 germinated in this phase.

Steps after step 3 run on after germination.

about 6 months from start to step 3. Germination happens during step 3; time not stated, 21 days assumed.

30% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Arctostaphylos p. 99Public domain
Show the original text
Arctostaphylos (Erlcaceae). Wild collected seeds of seven species were studied. The seeds vary greatly in size. Only the larger seeds ever germ., and the undersize seeds were not counted. Puncturing the seed coats had no effect so the long extended germinations do not seem to be a question of impervious seed coats despite a literature claim that A. nevadensis germ 70-40-70(3/10)-40(2/10).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Arctostaphylos p. 99. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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