Wet area like a bog or wet area just because it's the PNW with a reputation
for rain and damp? If it's the first, there are no turf grasses that will
grow in a perpetually wet spot - you will need bog plants for this purpose.
If it's the second, most nurseries in the area carry blends of lawn grass
seeds that are recommended for the PNW. These are cool season grasses that
thrive in our climate, which is not nearly as wet as most folks think. Any
lawn that is healthy and well prepared ( good soil, drainage, proper seed
bed) and properly maintained (frequent light mowings, periodic deep
waterings and moderate fertilization) will be extremely able to crowd out
pam - gardengal
As Pam noted, the PNW isn't as wet as many people think. Between 40-50%
of the rainfall comes from October to January, so if you weren't here
for the dry summer, you may have a distorted view of the weather here.
Also, there are lots of localized micro-climates. Along the Coast, the
Willamette Valley, foothills of the Cascades... all very different.
Medford, OR and Bellingham, WA are very different, too. And if you
happen to be east of the Cascades, well, all bets are off.
So when you head out to the nursery for advice, make sure it's a
respected local nursery, and not just the garden department at Home
BTW... Depending on your specific micro-climate, you may be at the
tail-end, or just missed the perfect time for overseeding and lawn
renovation. Spring won't be quite as good, but if you did miss the
autumn window for your area, make sure you start early enough in the
spring. In most of the PNW, once June hits, the only way you're going to
renovate a lawn is if you run up a water bill as big as your property
tax bill. In much of the region, even keeping an existing lawn green in
July and August can be very expensive. You'll be praying for those
autumn rains to come!
Buttercups are tough :-( They're an indication of poor soil fertility and
less than ideal drainage, so you need to do some work on your soil. The good
news is that in doing so, you should be able to remove most if not all of
the buttercups. Without understanding what is causing the drainage problem,
it's tough to suggest remedies for that specifically, but at the very least
you need to add some organic matter like compost to increase soil fertility.
It won't hurt the drainage, either. Once you improve soil conditions, you'll
have a much better chance of growing a decent lawn.
pam - gardengal
Anyone who has been in Seattle or Portland in August knows that there are a
lot of brown and tan lawns in that month - especially anywhere where water
rates are high. However, the September and October rains come just in time
to rescusitate the bluegrass lawns, which are beautifully green all winter
spring and early summer. Living in the even drier part of the pacific
northwest, I can vouch for that fact that many lawns in spokane are much
greener than seattle lawns during august - because so many homes are
constructed with automatic sprinkler systems.....lol Otherwise, ours would
be tan from the first of July to the end of September.
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