September in Southern California is considered a transitional calendar month for gardeners . The night become nerveless , though the days remain strong . It is also the time of class that the Santa Ana wind spoil , meaning that there may be period of live , dry conditions in September . In general , September is a good prison term to clean out the summer garden , and prepare the grease for wintertime flora . Many winter - blooming efflorescence and even some vegetables can be put into the ground in September for color and food during the cooler winter season .

Flowering Bulbs

Most daffodil in Southern California should be planted in November , but the Tazetta and Tazetta hybrid bulbs should be planted in September . Paper whiteness , Golden Dawn and Matador varieties are all good choices . In accession , because the fall is unremarkably a dry fourth dimension of year in Southern California , September is a good calendar month to plant drought - resistant bulbs , including freesia and watsonia .

Flowering Plants

Southern California is coloured most times of the year , and after pulling out summertime flowering plants , September is a secure month to put in fag , poppies , snapdragons and wild flower . These flowers may be planted from seminal fluid or transplant from seedling . Check private plants against your particular region ( inland , coastal or mount ) to define the good spot to plant . Bearded iris rhizome may also be planted at this time of year and will provide a showy flower through the winter . barbate iris requires at least a half - Clarence Day of sun .

Vegetables

Many green vegetables , including Brassica oleracea italica , cabbage , Brassica oleracea botrytis , wampum and sweet peas thrive in Southern California ’s dry , cooler gloaming season . Broccoli , which requires full sun and unconstipated urine , will be quick to harvest in former wintertime and should be planted after the last of the Santa Ana winds . Like Brassica oleracea italica , cabbage and cauliflower are both extremity of the Brassicaceae family , which mature well during coolheaded seasons and necessitate unconstipated water . unfermented peas , especially the early flowering variety , should be planted in September for a December harvest .

References

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