Rejuvenating container plants
Gary in Riverside Ca (USA) USDA Zone 9b; Sunset Zone 18
4 months ago
last modified: 4 months ago
I live in Riverside CA -- 60 miles east of Los Angeles -- where the summer temps exceed 100F degrees and the winter temps may drop to 20F degrees.
About 8 years ago, I drastically pruned all of the various potted plants on my patio, washed off all of the soil from their roots, pruned the roots and re-potted the shrubs in a modified "Al's Gritty Mix" [equal portions of 1/8"-1/4" redwood bark, Turface MVP and grit (#5)].
Except for applying all-purpose granular fertilizer several years ago, I have done nothing to the gritty mix.
Now, the shrubs look like they need some plant nutrients.
What do you recommend?