Irrigations questions about California Native Plants

I do not wish to appear ignorant, but I'm not quite sure what a microspray emitter is.
Is it a basic hose attachment, that I might find at my local garden store? Because I definitely do not want to kill my newly planted natives. However, since I'm not a corporation, but merely a basic tract home owner, I cannot spend a fortune on some sort of watering device designed for a large environment. Are there alternatives?
Thank you so much for your time,

you can use sprinklers or almost anything but drip
oscillating sprinkler on hose is ok if an area has been fully planted
or instead of drip you can use
one of these, I like #40
http://www.digcorp.com/diy/partlis2.htm

Please offer advice.
I'm going to put a sprinkler system in the front yard. There is an 8"
diameter by 35' tall valley oak that was transplanted in the lawn 7' from
the side walk and 7'from a driveway. The tree was a regular lil transplant
just a few years ago. The lawn was barely watered in the summers before
2002. What is a mimimum diameter no sprinkler zone. I'd prefer 7' circle but
I may have to give the tree a 14' square no sprinkler zone.
I'm new to houses and trees. So far my favorite is the vallay oak and I
may transplant a 48" or bigger in my next house.

the bigger the better(30-50 foot diameter?), it will like the water, but probably fall on the house as it gets top heavy from the water if you pull the lawn in too close

Hi,

I'm looking for info on irrigating with PVC and spray emitters since you recommend no drip. I can't find that section on your website, just how to make a drip system!

I also wonder about spray making the roots stay on the surface instead of growing deep. That's why I used the drip before.
And how long should you spray them? I'm working with a steep slope, using the gorilla hair mulch.

you just plug spray emmiters in, instead of drip emitters
or use raindirds or rotors on pvc water very well for the first time, then maintenance
like four hours first time
then about 20 minutes once every week or two

Also, understood: NO DRIP IRRIGATION. Can I use the old fashioned flat
brass with holes to water? I don't really know what a micro spray
emiter is. The brass shoots water up in a circle & it comes down like
rain.

that sounds better than drip, we want it to be like rain

Plants arrived in good shape, thanks. Question about the planting guide for
drought tolerant plants. Most of this is what I've been saying for years,
but what's the problem with drip irrigation? I don't water at all, mostly,
just curious. Is it because of the way the drip distributes moisture?

drip has the ecology of fresh water marsh, with one foot in, one out
a core of anoxic soil surrounded by high salt/moist then dry soil

Thanks for the info. 85% of our native planting will be on 30-45 degree slopes. What kind of watering system should I look into for it? We currently have some 30 year old impact sprinklers. For slope planting, is that the exception to not making a berm-well around the plant so that initial water will go down and not run off? We're in Anaheim Hills, zone 24, if that info helps. Also, are you based out of the north or south facility?

rainbirds are fine, water well, like 5-8 hours after planting. Then check with your finger and water maybe a hour or so until first winter. Thereafter, about fifteen minutes every two weeks.

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