Quote:
Originally Posted by graciegirl
How can I encourage our Plumbago bushes to bloom more? I see some that are just loaded with blooms and ours are doing a half hearted job.
We fertilized them with Rapidgro...didn't help 
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Gracie,
I'm finding that timed release fertilizer seems to be the way to go, as our soil here drains so rapidly. I have been using Osmocote dry granules (spring through summer) for some blooming things and it seems to make a difference.
I have also had good luck top dressing once a year (fall) with Black Kow manure. Just spread it around the drip line about 2" deep, don't cultivate it in. Helps to amend the soil without much trouble. Has worked well for my Gardenia and Camellias.
i do think that some bloomers, like Plumbago and Roses become exhausted in this climate periodically and just take a rest from blooming for a while. That affords a good time to prune. I wait a few weeks before coaxing them back to bloom again.