Regional Natives of particular interest: Dudleya pulverulenta

(Click on underlined title to see more) Dudleya pulverulenta in bloom near the Glider Port in June, with brownish-green Artemisia calfornica growing behind it(it's light green-grey during Winter through early Spring due to rain).  The photo below shows one in Winter, growing out of a rock crack in the side of a blasted rock 'wall' alongside a rode near Las Pilitas Nursery near Valley Center.  Mature rosettes range in size from about 8" to 24", depending on the individual and site conditions.  Being native to the southwest U.S. this succulent is acclimated to cool moist winters, and dry warm summers, any watering done during mid-Spring through Fall, the warm season, should be done infrequently, or not at all, letting the soil dry out in between waterings; and if watered during this time the soil should also be fairly quick to dry around the root zone, otherwise if the soil the roots are in stays moist for too long or too frequently during the dry season the plant can be prone to rot which can kill it.   During late Fall through early Spring, typical rainfall amounts of watering are acceptable, which could be as much as around 30 inches of rain equivalent.  Often grows at an angle to minimize excess water from settling in it's rosette, otherwise that can lead to a rot of the rosette.  It can even tilt its growth from Winter to late-Spring/Summer, being more upright during the cool season, then angling during the warm season.  Snails and slugs love it too.  So keep it where it can be on the dry side of soil moisture content most of the time throughout the year, though it does need a little bit of water on occasion during the dry-season if you want to minimize quantity of dead leaves.Photo at left in Winter, photo below in Summer, of the upper Dudleya plant in bloom.  Notice reduction in leaf rosette diameter and the tilting of the foliage to the outer side in the Summer photo below, as well as the leaves becoming more white and hence more reflective of sun energy, - and with each of those changes causing to minimize moisture loss and heat stress during the warm-dry half of the year.


Dudleya in these two photos is another individual, above in Winter, below in Summer, in dry dormant stage, and to repeat the cycle with the same individual plant year after year.  The flower stalks below have had the buds nipped off for some sort of human-use probably associated with some form of ingestion either smoked, in tea, or otherwise ingested.

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Green Thumb San Diego Comprehensive Landscape Design Plants