David C. Racker, FASLA

Hello. I just want to let you know that at SLANT we have just launched our second competition and this time it is an open international garden design competition and all are welcomw. Details can be viewed on http://www.slant.eu

Hello all.. Any plant buffs out there have experience with Panicum virgatum ‘heavy metal’ or ‘Northwind’ in the SF bay area?  Based on the zone specs it should be fine but my broker hasn’t sold too many of them and couldn’t comment on how they perform in the area… any help would be appreciated.

Hi All!
I’d like to offer you an irrigation tube, which is to be digged under the plant/grass into soil (20 cm). Tube will ‘sweaten’ the water through porous surface and feed water to root system. Absolutely easy and water saving!!
Please feel free to contact me for support!
 
Yucel 

Has anyone designed a commercial or residential irriation system with HTPE pipe?

Hi all,
I am currently working on a landscape design for a parking lot in an arid area. Which is the best irrigation sytem to use, taking note that the island is 2metres wide?Where can i get more information on irrigation design?

to David — your response was great. thanks. we are about to over-seed an area with native wildflower mix. have to say, had a really good chuckle, more like chortle reading your comments. then had this amazing image of you talking to some folks out in your mojave neck of the woods about carbon sequestration (mostly because I have been in that…[Read more]

I was wondering what sites residential designers use to find certain products or materials. Let’s say you want to find certain types of outdoor porcelain tiles, sculptures, water features, etc. Are there sites out there that are relevant for us to use? And if so, would anyone like to share these?

David, I love your common sense approach!!!

Oops — just saw the link in your second post — thanks, David.

Still would be great to read the actual pub to know what was included in the study.

Wow…. and I thought my comment was long winded!

This is great, though, David. I appreciate it. It is helpful to have to have a peer reviewed pub in this conversation (it means i better try to find the one I was referencing!). And it does run contrary to the prevailing wisdom in the “green” community regarding turf. Do you have a web link or…[Read more]

This is interesting:

‘Corrected’ UC-Irvine study shows turfgrass to be positive sequester of carbon

Scientists from the Department of Earth System Science at the University of California – Irvine recently published a paper in the journal Geophysical Research Letters on January 22, 2010 titled, “Carbon Sequestration and Greenhouse Gas Emi…[Read more]

In response to John’s question “how would you propose to reduce emissions and increase sequestration through design” in addition to my comments below about how to reduce greenhouse gas emissions – landscapes can also play an active role in sequestering carbon through thoughtful plant selection and soil stewardship. Research has shown that…[Read more]

I believe the solution is to first accept the dual responsibility built landscapes hold in both causing environmental degradation AND protecting and restoring the ecosystem services we depend upon.

I agree with David, we can not and should not eliminate turf completely from our landscapes. There are many scenarios where mowed lawn is the best…[Read more]

I have not read the article, Heather, David and Reid, but I think the basic point is good one — maintenance should be consideration in designing a “sustainable residential landscape.” Even here in the SW, we will design what we think is a more sustainable landscape, and put in a water harvesting swale with cobbles. As it turns out the maintenance…[Read more]

David your are correct!

@Reid – Hahahahahahahahahahaha!

I love to laugh out loud! It’s good for the body. Relieves stress, improves circulation.

Stupid Article!

This study also “compare(d) carbon sequestration to nitrous oxide and carbon dioxide emissions from lawn grooming practices.”

I have news for anyone willing to listen. Lawn maintenance doesn’t produce carbon “di”oxide emissions. Lawn maintenance produces carbon “mon”oxide. Carbon monoxide produces carbon dioxide which in turn is used by plants…[Read more]

From the article: “It’s impossible for these lawns to be net greenhouse gas sinks because too much fuel is used to maintain them,” Townsend-Small concluded.

So what’s the solution? That’s what I want to know. Should we eliminate athletic fields and play completely? What then shall we do with those that have no place to play and engage in athletic…[Read more]

Urban “Green” Space may lead to Global Warming

Interesting article about the importance of extending sustainable practices to the maintenance of our landscapes. If the implications of maintenance requirements are not considered, the benefits of sustainable design practices may be lost. I think this article also highlights the advantage of having…[Read more]