00 All Year

Blooming times are based on my personal observations in 2010 and 2015. The starting month represents the earliest I have ever seen the plant in bloom, and the ending month represents the latest. This does not mean that any plants will be blooming for the whole time.

My sampling of trails is not perfect. I try to check every front country trail once a month. But I might miss a bloom if it is uncommon. Also it might start blooming immediately after my one run of the month and so my date (for a plant that only grows locally in one place) might be off by as much as a month.

Some flowers bloom all year round. Generally they peak in the spring (March-April) and then just have the occasional bloom by the end of summer.

Flowers in different places start blooming at different times. For instance in 2011, Chia, Salvia columbaria started blooming in early February in a warm, sheltered, sunny spot on the west fork of Cold Spring trail. It was more than a month later that I saw them elsewhere, on Buena Vista. At the end of March they were blooming in Blue Canyon. They didn’t start at Camino Ciello until April. Blue Canyon trail (which is a north facing slope is usually several weeks behind the front country (at least in the spring).

Officially the rain year starts in October as this is usually when the first rains of the season come; shortly after the rains we start getting new blooms.

November and December have the fewest blooms. But November marks the change from one year to the next as the rains cause a few new flowers to come out.

Blooming All Year Long
January February March
April May June
July August September
October November December
white yellow blue brown red

Flowers blooming all year long

Blooming data are based on my personal observations between 2010 and 2015. They are not perfect.

The red bits of the little tables under the flowers indicate when I observed those flowers blooming. The fainter red bits indicate months in which the flower bloomed but for which I neglected to record an exact start (or stop) date. Since these are the observations of one man randomly walking the local trails I may have missed the true start/stop by several weeks.


Xanthorrhoeaceae
Asphodelus fistulosus
Asphodel

All year

2015
2014
2013
2012
2011
2010
2009
2008

Asteraceae
Cotula coronopifolia
Brass Buttons

All year

2015
2014
2013
2012
Heterotheca grandiflora
telegraph weed

All year

2015
2014
2013
2012
2011
2010
Isocoma menziesii
Menzies’ goldenbush

All year

2015
2014
2013
2012
2011
2010
Solidago velutina
California goldenrod

All year

2015
2014
2013
2012
2011
2010
2009
Pseudognaphalium canescens
white everlasting

All year

2015
2014
2013
2012
2011
2010
Bidens pilosa
Beggar’s ticks

All year

2015
2014
2013
2012
2011
2010
Encelia californica
Bush sunflower

All year

2015
2014
2013
2012
2011
2010
Eriophyllum confertiflorum
golden yarrow

All year

2015
2014
2013
2012
2011
2010
Venegasia carpesioides
canyon sunflower

All year

2015
2014
2013
2012
2011
2010
2009
Silybum marianum
milk thistle

All year

2015
2014
2013
2012
2011
2010
Hypochaeris radicata
Hairy Cat’s ear

All year

2014
2013
2012
2011
Malacothrix saxatilis
Cliff-aster

All year

2015
2014
2013
2012
2011
2010
Malacothrix saxatilis-saxatilis
Seaside daisy

All year

2015
2014
2013
2012
2011
Picris echioides
Prickly ox-tongue

All year

2015
2014
2013
2012
2011
2010
Sonchus sp.
Sow-Thistle

All year

2015
2014
2013
2012
2011
2010

Adoxaceae
Sambucus nigra-caerulea
Blue Elderberry

All year

2015
2014
2013
2012
2011
2010

Caprifoliaceae
Lonicera subspicata
Chaparral honeysuckle

All year

2015
2014
2013
2012
2011
2010

Apocynaceae
Vinca major
periwinkle

All year

2015
2014
2013
2012
2011
2010

Plantaginaceae
Plantago lanceolata
English Plantain

All year

2015
2013
2012
2011
Veronica anagallis-aquatica
Water Speedwell

All year

2014
2013
2012
2011

Scrophulariaceae
Verbascum virgatum
Wand Mullein

All year

2014
2013
2012
2011
2010

Convolvulaceae
Calystegia macrostegia
Coastal Morning Glory

All year

2015
2014
2013
2012
2011
2010
Cuscuta californica
California Dodder

All year

2015
2014
2013
2012
2011

Solanaceae
Datura wrightii
Sacred Datura

All year

2015
2014
2013
2012
2011
2010
2009
Nicotiana glauca
tree tobacco

All year

2015
2014
2013
2012
2011
2010
2009
Solanum douglasii
white nightshade

All year

2015
2014
2013
2012
2011
2010
Solanum lanceolatum
Lance-Leaf Nightshade

All year

2014
2013
2012
2011
2010
Solanum xanti
purple nightshade

All year

2015
2014
2013
2012
2011
2010
2009

Aizoaceae
Carpobrotus chilensis
Sea Fig

All year

2014
2013
2012
2011
Carpobrotus edulis
Hottentot Fig

All year

2014
2013
2012
2011

Nyctaginaceae
Abronia maritima
Red sand verbena

All year

2015
2014
2013
2012
2011
2010
Abronia umbellata
Pink sand verbena

All year

2015
2014
2013
2012
2011
2010

Polygonaceae
Eriogonum parvifolium
Seacliff Buckwheat

All year

2015
2014
2013
2012
2011

Brassicaceae
Brassica rapa
field mustard

All year

2015
2014
2013
2012
2011
2010
Cakile maritima
sea rocket

All year

2015
2014
2013
2012
2011
2010
Raphanus ssp
wild radish

All year

2015
2014
2013
2012
2011
2010

Tropaeolaceae
Tropaeolum majus
Nasturtium

All year

2015
2014
2013
2012
2011
2010

Cistaceae
Helianthemum scoparium
Common Rush-Rose

All year

2015
2014
2013
2012
2011
2010

Malvaceae
Malacothamnus fasciculatus
Chaparral mallow

All year

2015
2014
2013
2012
2011
2010
Malva nicaeensis
bull mallow

All year

2015
2014
2013
2012
2011
2010

Onagraceae
Camissoniopsis cheiranthifolia
Beach Evening Primrose

All year

2015
2014
2013
2012
2011
2010
Oenothera elata
Evening Primrose

All year

2015
2014
2013
2012
2011
2010

Fabaceae
Acmispon glaber
Deerweed

All year

2015
2014
2013
2012
2011
2010
Melilotus albus
white sweet clover

All year

2015
2014
2013
2012
2011
2010

Euphorbiaceae
Croton californicus
California croton

All year

2015
2014
2013
2012
2011
2010
Ricinus communis
Castor bean

All year

2014
2013
2012
2011
2010

Papaveraceae
Dendromecon rigida
Bush poppy

All year

2015
2014
2013
2012
2011
2010
2009
Ehrendorferia chrysantha
Golden Eardrops

All year

2015
2014
2013
2012
2011
2010

Noticed 49 flowers that have bloomed all year.

Species blooming by month
Jan Feb Mar Apr May June July Aug Sep Oct Nov Dec
164 248 303 328 351 321 248 192 165 148 131 142

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