Tips for keeping Mexican petunias, nutgrass in check

Could you tell me how to kill the roots of Mexican petunias?

[...] I also find both the tall and compact forms extremely vigorous.

Without a gardener’s watchful eye, these prolific reseeding, root-expanding perennials quickly can outgrow their welcome in the landscape.

If you’re weary of digging up this pest, organic gardeners, including the Dirt Doctor Howard Garrett, recommend molasses to control nutgrass.

Drench troublesome areas with 1/4 to 1/2 cup of liquid horticultural molasses per gallon of water.

The shrubs are more than 5 years old, and I keep them trimmed like a hedge along the backyard (full sun) flower beds.

Is it possible these shrubs have only a few years that we would enjoy those beautiful blooms and they stop after a certain number of years?

Loropetalum sets buds in summer that become late-winter to early-spring blooms. …read more

Via: Gardening

    

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