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Rootstock for persimmons at propagation fair
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jadeforrest
237 Posts
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March 11, 2009 - 9:16 pm

What was the rootstock that was available at the scion exchange last weekend? I wanted to know for future reference. I am also curious what effect this rootstock has on the tree.

Thank you so much!

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jadeforrest
237 Posts
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March 12, 2009 - 7:45 am

The common rootstocks for persimmons, as far as I can tell, are:

D. kaki - long tap roots
D. lotus - common rootstock to use, but not compatible with some cultivars, such as Fuyu.
D. virginiana - inconsistent, suckers badly

http://www.crfg.org/pubs/ff/pe.....immon.html
http://www.avocadosource.com/C.....rbooks/CAS ... _43-44.pdf

The cultivar I selected was Jiro, which Raintree is actually Fuyu. Well, there seems to be some confusion about which is which. Apparently, Jiro is sometimes called Fuyu and vice versa?

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Viron
1409 Posts
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March 13, 2009 - 10:25 am

Jade,

the persimmon rootstock at the exchange was “American virginian.” Looks like your only ‘problem’ will be with suckering. Keep in mind, suckers can be dug, grafted and turned into free trees! In fact, a couple days ago I added a third (pollinating) variety to a plum rootstock ‘sucker’ that had suckered in the perfect place!

A problem for the Society is having rootstock on hand that will work with whatever’s brought to the show. I was happy to see persimmon rootstock there, though no one brought any to me. It looked as if last year we didn’t have any… Persimmons are a very underutilized fruit in the PNW – with that in mind, as hurried as I am at the show, rarely having (or taking) time to talk with my old friends – I made an effort to stop and thank Jim Gilbert of One Green World (formerly North Woods Nursery).

I reminded Jim of he having inspired me to (well over twenty years ago) plant kiwi, figs and persimmons. They’ve become as, or more useful than my pears, apples or plums! In fact, I’m still peeling away eating 8 kiwi a day – organic to boot! …He recognized me … and has heard it before… but I just wanted to drive home the point <img decoding=" title="Wink" /> And, I believe North Woods and Raintree were originally the same organization (I now buy from both!), thus the ‘mix-up’ with their Fuyu vs. Jiro Whatever it is – mine is a magnificent and consistently productive tree.

As I’d mentioned to you at the show …after not letting me graft your persimmon… be patient with them; they’re a very conservative tree, pushing growth with the oaks. And after mine were grafted it was likely midsummer before they shown life, but all three did – and are now teenagers!

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jadeforrest
237 Posts
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March 13, 2009 - 11:48 am

Thank you so much for the information, Viron!

I didn't have you do the persimmon because I didn't want to cut in line, not because I didn't want you to do it!

Wow, this rootstock has crazy root systems. Apparently it can get 65 ft across! Has anyone had problems with suckers coming up far from the tree?

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Viron
1409 Posts
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March 13, 2009 - 12:12 pm

…you’re welcome…

I suspect ‘this’ is the same rootstock my four ‘commercially’ produced persimmon trees are on… They will send up tender root suckers a fair distance from their trunk – but nothing my riding lawnmower hasn’t made quick work of. The problem is ‘me’ -- envisioning another persimmon tree! That far away from the base of the trunk, digging and transplanting would be fairly easy. Let it go dormant and graft a whip & tongue of another NW hardy variety, or a piece from the mother tree and you’ve got two (or ten!).

A friend out this way started an entire “Persimmon Orchard” by walking a mid-western wetland of his childhood, pulling up persimmon starts then grafting them back here with known varities. I’d always assumed they’d been seedlings... but now feel they were ‘suckers’ from another tree.

I also assume the few suckers mine send up each year is ‘the trees’ way of telling me it’s in good condition … as I mow over the tops of its babies…

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jadeforrest
237 Posts
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March 13, 2009 - 12:29 pm

How large have your persimmon trees gotten, Viron (or anyone else)? I'm wondering if the American persimmon rootstock will make for a larger tree?

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Viron
1409 Posts
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March 13, 2009 - 4:31 pm

Allowing / encouraging each tree to get as big as possible, and between the ages of 10 and 20 years, they’re between 8 to 10 feet tall. They seem to limit themselves to ‘that’ height. They need very little pruning, I just pick away at them by habit more than necessity.

One serious downside I tend to forget (living in a wind-sheltered canyon) is their brittleness. Their wood is extremely brittle; so are their “American” cousins. With a moderate to large crop they’ll snap major limbs.

It’s sad how those most interested in growing fruit are usually getting up in years… Of the three persimmon trees I gave away the two I ‘can remember’ went to relative old-timers. Hence they pruned for ‘fruit’ over structural ‘strength.’ I pruned for the opposite, as is my tendency. I’d suggest you do the same. Meaning, allow lateral limbs to beef-up as opposed to becoming the least bit leggy. You must shorten them when pruning to achieve this. And watch the crop load – which is pretty easy as the entire neighborhood will likely be doing the same! Prop and tie up limbs as needed.

As mentioned, mine have done well, but I know of three others who’ve had serious losses; one, the entire tree! With scaffold limbs snapping and splitting its trunk to the ground. My worst damage came from raccoons – past-tense… Neither deer nor insects mess with my persimmons – and, they don’t need a pollinator. I fact, if they’re pollinated they’ll set seeds! As is – you can bite right through them – dodging and wasting nothing.

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jadeforrest
237 Posts
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August 23, 2009 - 7:51 am

I am surprised how small your persimmons have stayed. Is that normal with the American persimmon rootstock? They are such large trees... I am surprised they wouldn't make the Asian persimmons larger.

The place I put the persimmon, I have room for about up to 15 or 20 feet tops.

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Viron
1409 Posts
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August 23, 2009 - 12:51 pm

“I am surprised how small your persimmons have stayed.” -- Me too. The soil’s very good where they’re located. But they’re well within the range of other “Fuyu” varieties I’m aware of. As my own were purchased from various nurseries, I’ll assume they’re on American rootstock. Those I grafted and gave away were on ‘American’ stock, though never showing stronger growth than mine…

I was amazed when touring an HOS member’s farm in Newberg (Oregon) years ago. His “persimmon” tree was enormous. Likely 30 feet high! He attributed it to age… perhaps 80 years, as I believe the palace was a Century Farm within his family. …but I can’t remember if it was an American or Asian? Given the difference in growth habit and size I’ve always assumed it was an American.

My under-stock gives no indication of ‘over-growing’ the Asian scion/s above. They sucker, but trunk diameters match flawlessly at the graft union. But as I described above, allowing them to become leggy will contribute to limb loss due to their brittle nature – Americans included, if not especially; that I learned the hard way :(

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John S
PDX OR
2952 Posts
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August 23, 2009 - 2:57 pm

When you get new persimmon rootstock, make sure that you water them regularly, like every other day. They can die real easily at first. I've had two die quickly.
John S
PDX OR

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jadeforrest
237 Posts
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September 4, 2009 - 4:42 pm

Thanks guys. I am wondering if that is what happened to my grafted tree I hav. Heard they are really late to get started, but I still haven't had any growth this year.

I am contemplating buying an older tree from Portland nursery. They have a ton of persimmon trees right now. The problem is, the variety I am thinking of getting is the fuyu, and I have read it is not graft compatible with D. Lotus. And I am pretty sure that is what the rootstock is.

Anyone else had any non astringent varieties they really like that do well in Oregon? Preferably the non pollination variant varieties?

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John S
PDX OR
2952 Posts
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12
September 4, 2009 - 11:41 pm

I have an Izu-it is early for years like last year, when things were late. It has a nice taste and is non-astringent. Now I'd like to get something more complex in flavor, like the Americans. Any recommendations on complex flavored types?
John S
PDX OR

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