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Is it too late to fertilize?

Posted by robin4444 z5 CO (My Page) on
Sun, Aug 4, 13 at 7:57

Hi, everyone. We're in the Wet Mountain foothills, elevation 6100 feet. I've gotten about half of my perennials fertilized. Is it too late to do the rest and give the ones I've already fertilized a second dose? They all had such a hard time this year with the drought we're having. All are on an irrigation system. Temp is in the 80-90's now. Thanks for any advice you can give. I'll be using a hose-end foliar fertilizer.


Follow-Up Postings:

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RE: Is it too late to fertilize?

Oh, I think that would be fine.

I don't know when you'd expect a first frost but if you can get out about 8 weeks, I'm all for fertilizing. At 4 weeks, you may run into some unnecessary frost damage.

Now, those more experienced with perennials can comment.

Steve


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RE: Is it too late to fertilize?

Maybe just a note to add - our rocky mt soils are **generally** pretty complete in nutrients, usually lacking iron due to high pH, and nitrogen, which leaches out or gets absorbed by the plants.

Perennials can 'over-react' to excessive fertilization and get huge - as an example, I put down a 4-5" layer of home made compost this spring on my front flowerbeds, and I now have asters and salvia that are twice the size as usual, falling over, more green than flower.

So once they're established, take it easy.

I fertilized my leeks yesterday. They're behind for this time of season.


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RE: Is it too late to fertilize?

Hmmm. Thank you both. Maybe I'll just hang it up for the season. Everyone's looking good as it is.


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