Summary of Plants Blooming on the Santa Rosa Plateau Vs. Time

This page contains observations from 27 May 2001 to 27 July 2001.


27 May - 9 June observations: 27, 31 May; 4 and 9 June on Vernal Pool, S. Los Santos, Multiuse (Wiashal), S. Trans Preserve, and Granite Loop Trails; Hidden Valley Road.

Plants in bloom:

The current bloom is now well past its peak overall except at the Pool. In the grasslands, annual grasses obscure many of the flowers. The chaparral areas have the best overall blooms. Although the best displays are over, there are still new beautiful species coming into bloom every day, and ~70 different species of flowers in bloom or displaying colorful seeds, fruit or leaves.

Best displays:

New species beginning bloom recently (dates are when I first observed them):

There are currently 17 species not yet at full bloom, another 38 species in full bloom, 27 species ending their bloom, and 87 species that are finished blooming.

The lovely blue downingia is producing patches of color and a pleasant smell along the boardwalk at the Main Pool. Grasses are producing a brown ring at the edge of the Pool, and slender tarweed is forming a yellow ring just outside that. The coyote thistle (San Diego button celery) is just beginning to bloom and give off its bologna smell.

List of plants in bloom or displaying colorful seeds, fruit or leaves:


12-25 June observations: 12, 17, 21 and 25 June on Punta Mesa, Vernal Pool, Multiuse (Wiashal), S. Trans Preserve, Vista Grande and Granite Loop Trails; Waterline, Monument Hill and Hidden Valley Roads.

Plants in bloom:

The current bloom is now well past its peak overall everywhere. In the grasslands, annual grasses obscure many of the flowers. The chaparral areas have the best overall blooms. Although the best displays are over, there are still new beautiful species coming into bloom every day, and ~80 different species of flowers in bloom or displaying colorful seeds, fruit or leaves.

Best display: the many different species in bloom along the Granite Loop Trail.

New species beginning bloom recently (dates are when I first observed them):

There are currently 22 species not yet at full show, another 31 species in full show, 27 species ending their show, and 109 species that are finished with their display.

At the Main Pool, the coyote thistle (San Diego button celery) is almost in full bloom and is giving off its bologna smell. All other plants there are ending their bloom.

List of plants in bloom or displaying colorful seeds, fruit or leaves:


29 June - 12 July observations: 29 June; 3, 7 and 12 July on Vernal Pool, Multiuse (Wiashal), Vista Grande and Granite Loop Trails; Waterline Road.

Plants in bloom:

The current bloom is less than half its peak overall everywhere. Annual grasses obscure many of the few flowers blooming in the grasslands. The chaparral areas have the best overall blooms. There are still ~40 different species of flowers in bloom or displaying colorful seeds, fruit or leaves.

New species beginning bloom recently (dates are when I first observed them):

There are currently 9 species not yet at full show, another 26 species in full show, 10 species ending their show, and 153 species that are finished with their display.

At the Main Pool, the coyote thistle (San Diego button celery) is in full bloom and is giving off its bologna smell. All other plants there have ended their bloom.

List of plants in bloom or displaying colorful seeds, fruit or leaves:


16 - 27 July observations: 3, 7, 12, 16, 21 and 27 July on Vernal Pool, Multiuse (Wiashal), Vista Grande, Trans Preserve and Granite Loop Trails; Waterline Road.

Plants in bloom:

The current bloom is much less than half its peak overall everywhere. Annual grasses obscure many of the few flowers blooming in the grasslands. The chaparral areas have the best overall blooms. There are still ~40 different species of flowers in bloom or displaying colorful seeds, fruit or leaves.

New species beginning bloom recently (dates are when I first observed them):

There are currently 6 species not yet at full show, another 23 species in full show, 10 species ending their show, and 166 species that are finished with their display.

At the Main Pool, only the alkali mallow is coming into bloom. All other plants there have ended their bloom.

List of plants in bloom or displaying colorful seeds, fruit or leaves:


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Copyright © 2000-2003 by Tom Chester and Jane Strong.
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Comments and feedback: Tom Chester | Jane Strong
Updated 27 January 2003.