Weed Prevention In Perennial Flower Garden - Knowledgebase Question

Rome, NY
Question by maenz
April 13, 2001
We have recently bought a house with a large flower garden, last summer it was OVER-RUN with grass and other various weeds. There are many previous perennials, and I plan to plant more.

I have loosened the sool and removed the grass from last year. We also have some "Miracle-Gro Garden Weed Prevent" that we can put on the soil. I was thinking of mulching, but from what I have read, I want to avoid mulching over the bulbs (and I don't know where they are). So, how can I prevent weeds, protect the perennials, and plant new bulbs?
Thank you for your help.


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Answer from NGA
April 13, 2001

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In general, a flower bed does best with only a few inches of organic mulch, two inches or so should be fine for summer. This amount of mulch would not prevent bulbs from coming up through it. (I am not sure what context you would have read about not mulching over top of the bulbs.) When mulching, do not apply the mulch over top of the crowns of plants or foliage or emerged bulbs that are already growing -- the mulch should never cover or touch the plants. After mulching, you could use whatever weed preventer according to the label instructions. You may also find that old established weeds come back up again from their roots. These may be smothered or spot treated with an herbicide containing glyphosate. Be careful to read and follow the label directions very carefully as this herbicide will kill desirable plants as well as weeds.

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