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Most Drought Tolerant Fruit and Nut Trees for the Pacific Northwest  RSS feed

 
Posts: 172
Location: Western Washington
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I hear and read from a lot of people that after watering a fruit or a nut tree in the pacific northwest for a few years, that tree should make it through the summers (which are almost entirely without rain) without being watered. But what I see is people still watering their trees even beyond this, because of how hot and dry the summers have gotten. Longer term I'd like to have my orchard not rely on irrigation at all, or at least, at a minimum. So I want to know what everyone's thoughts and experiences are. And above all: What fruit and nut trees have you planted that, after being established for a few years, has made it just fine without watering?

Thanks in advance =)
 
pollinator
Posts: 387
Location: SF Bay Area
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Hi James - while I'm not that far north, currently in Northern California, we still have that dry summer. My established fruit trees don't require summer water to survive. They include a Meyer lemon, loquat, Fuyu persimmon and Santa Rosa plum, nor do my blackberries or elderberries, but they tend to have higher yields with some supplemental water, as they do when we have a wet winter. A year round drought plus no summer water is particularly hard on them. I currently supplement them with grey water during the dry period, but have not always done so. In my experience, increasing the length of time between watering gradually works best.
 
pollinator
Posts: 1897
Location: Massachusetts, Zone:6/7, AHS:4, Rainfall:48in even Soil:SandyLoam pH6 Flat
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Apricot
Filberts
Oregon Myrtle
Almond
Jujube
Palms (Dates too)
Autumn Olive
Mulberry
Pineapple Guava
Bay Tree
Fruiting Roses
Pomegranate
Beautyberry
Gooseberries
Strawberry Tree
Eucalyptus
Grapes
Walnut
Figs
Olives

Edit: I forgot Pistachio
https://onegreenworld.com/product/uzbek-pistachio-seedling-2/
Alot of the mint family too.
 
James Landreth
Posts: 172
Location: Western Washington
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Thank you Stacy! Depending on where you are in northern California, I feel it's pretty similar and still kind of Pacific Northwest.

S Bengi, thank you for the list. It's very comprehensive. Do you think chestnuts would make the cut? Also, OneGreenWorld will no longer be carrying pistachios, at least not for a couple of years. They've had issues with their seed source.
 
S Bengi
pollinator
Posts: 1897
Location: Massachusetts, Zone:6/7, AHS:4, Rainfall:48in even Soil:SandyLoam pH6 Flat
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Yes chinese chestnut will make the list too.
Ginkgo
Same with the Walnut/Hickory family (Pecan is usually too thirsty though)
Sand Plum and actually most of the Prunus spp species should do well
Crab Apples are also okay
Rose family brambles (blackberry, wineberry, fruiting rose bush, etc)
Serviceberry
Persimmon
Cornelian Cherry (dogwood family)
Gooseberry/Currant Family
Nannyberry
Most Evergreen Plants too

Another trick is to only water once a week, and in the summer don't be afraid to let them get water stressed, it will force them to adopt.
 
Stacy Witscher
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Posts: 387
Location: SF Bay Area
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James - I'm currently in the Bay Area, but will be moving to southern Oregon next year. So, currently my zone is warmer than most/all of Oregon and Washington, so some of my trees might not work in colder areas, but the dry season is from May to October/November, haven't had any really rain yet this fall. In the dry season, the most I would water a fruit tree is once a month. My grey water system does about 15 gallons, so a fruit tree will get that every month or so.
 
pollinator
Posts: 537
Location: Pac Northwest
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You are very correct that a lot of folks still water their trees in the PNW.

Rather than asking what trees don't need it, you might want to ask why people are still watering.

There are two main reasons for it,

1) people just get too frightened to ween their trees off irrigation and watering. They get stuck pampering and so the tree never develops the independence it needs to survive. This especially goes for the early years when the tree should be forced to spread it's roots and build the network it needs.

2) most people fear loosing productivity. Watering fruit and nut trees means bigger production typically. People fear loosing out on that big harvest and so water to ensure they get it. Rather than thinking about the health of the tree and letting it experience hardships, folks tend to think about the short term big harvest.

It is a lot less about what trees can survive the PNW without watering (because a lot can as some of the lists above show) and more about are you willing to let some trees fail or produce low so you do not have to water?
 
James Landreth
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Location: Western Washington
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Thank you for all the insights, advice, and ideas everyone.

Stacy, where in Oregon are you moving? I used to live in Ashland. Southern Oregon is a really wonderful place to live
 
Stacy Witscher
pollinator
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James - we are moving somewhere in Jackson County, but probably not Ashland. My daughter works for Costco and that's in Central Point, so we've been looking at homes closer to that. We are very excited.
 
Posts: 6
Location: Minnesota zone 4a
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We are not in the PNW but we grow all of our trees without watering in the sand plains of Minnesota. Almost pure sand, zone 4a, on the windy prairies. Our secret is this - we plant our trees in the fall. If we order bare root or seedlings, we hold them in containers until early fall - September - then they go in the ground. Our falls are moist. The trees put down roots and then go dormant for the long, cold winter. In the spring, the snow melt and early rains get them started. We have had a few trees come out in spring with tons of new growth only to be surprised by our long dry summers. They "learn" pretty quick though and despite a wet spring do not flush with fast growth the second year. They grow slower but can withstand any weather conditions.

Here are the fruit plants we have growing this way:
American Plum
Nanking Cherry
Colette Pear
Keiffer Pear (this one is amazingly hardy and drought tolerant!)
Hackberry
Northstar cherry
Crabapples
Goumi Berry
Autumn Olive
Wild Black Cherry
Pin cherry
Serviceberry
Nannyberry
Beach Plum
Blueberry
Currants (white, pink and red)
Gooseberry (these are planted in our shadier areas)
Mulberry
Haskap (honeyberry)
Red and black raspberries
Dew Berry
Wild strawberry

We are currently growing out seedling Antonovka apples and they will be put out on the prairie without watering as well. Being in the PNW (and I am guessing with a heavier soil?) you will probably have fantastic results by allowing your trees to fend for themselves. We have good results, but our trees grow slowly. Then again  - we are in almost pure sand. That is tough for nutrients and water. We do provide mulch to our trees and do not remove leaf litter. We get fruit set on our trees and they are productive when they reach full size.

Our farm is currently 100% off grid. We have solar energy and we bring water for cleaning/drinking. Eventually, we will install a well and then we will set up a drip system in a small concentrated orchard area with more plums, cherries, apples, and berries. The trees mentioned above will still be fending for themselves - we just have too many acres to  water everything.

Long story short - yes it can be done, yes the trees will be "stronger" for it, but you will sacrifice speed of growth and possibly fruit set. There is probably a happy medium of allowing them to tough it out the first few years and put down adequate roots, but then water periodically during the toughest dry spells and end up with the best of both worlds.
 
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