In response to our loyal reader’s request here is what we found out for ya’.
Winterize your perennial garden by removing any dead flowers or foliage in autumn. After a hard freeze, cut back all stems to ground level and add extra mulch. This would be applicable to perennials such as hostas, phlox, iris, anemone, cranesbill, etc.
Some perennials, such as wax begonia, zonal geraniums, alstromeria, and calla lily are not hardy and must be grown as annuals in cold climates. But they will return year after year in hot areas.
Ease up watering in the autumn when it comes to shrubs and azaleas. Water induces new growth, which may not harden off before the first freeze. As mentioned above, prune away dead foliage and flowers as well as mulch around the base of the plant.
cut the hostas to the ground? really? they’ll really grow back?
okay. guess i need to go buy mulch.
Girlymama,
Not to conflict with previously given info, but from my personal previous experience, Hostas are pretty much ok to leave alone.
They’re pretty hardy in our area, and so, there’s really no need to cut them back.
Also, with azaleas, it’s usually best to cut them back once the blooming period is over. But, if you haven’t done that, then it’s ok to cut them back now!
The reason you are supposed to trim back the perenials to the ground is to not create disease with the old plants leaves that are still left over. This is only done after the first freeze.
I wasn’t saying to cut back azaleas I said to trim back the dead flowers and foliage, i.e. any branches that died during the rest of the summer after you pruned them in the spring.
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