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Messages - deRoode

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Citrus Buy, Sell, & Trade / Re: Seeds or fruits of frost-resistant citrus
« on: November 30, 2023, 11:30:16 AM » I ordered last year, I fruit will yield you plenty of seeds.

Citrus Buy, Sell, & Trade / Re: Seeds or fruits of frost-resistant citrus
« on: November 29, 2023, 03:38:01 PM »
Yuzu is in season right now, if that qualifies. Plenty of websites are selling it at the moment

Hi, I am still looking for these three varieties, anyone that can help?
Budwood would be the easiest!

Citrus General Discussion / Re: flying dragon vs C35
« on: January 26, 2023, 05:08:21 AM »
Thanks for the info. @deRoode, did you also take cuttings during hot months?

I used cuttings coming from plants actively growing at 23 C to 29C. Material that was semi hardened worked best for me.

Citrus General Discussion / Re: Amoa 8
« on: January 25, 2023, 11:47:43 AM »
Very interesting how intense the redness is. Could it be a good parent to produce red coloring in existing varieties?

I would be interested in the seed  :)

Citrus General Discussion / Re: flying dragon vs C35
« on: January 24, 2023, 04:58:20 PM »
Have you tried to root FD cuttings? If so, was it easy?

I have rooted FD with quite a high succes rate. I used substrate plugs (some kind of cocos type plug). You can root them in a plastic container under LED at 23C constant. First time it took around 6-8 weeks for most of them to root, significantly longer than other varieties. Using material from actively growing plants gave much better succes rates.

Citrus General Discussion / Re: Citrus in Japan
« on: January 11, 2023, 06:06:31 AM »
In Tokyo I found many antenna shops. These shops represent a single prefecture.

Any particular area or neighbourhood in Tokyo ?

Yes, all of them are at walking distance from Ginza station. Most of them are in the same shopping centre, some of them close to that shopping centre. Search for Yurakucho and Ginza antenna shops

Citrus General Discussion / Citrus in Japan
« on: January 10, 2023, 04:32:56 PM »
For those who are interested, I was to be able to visit Japan last December. During the trip I was lucky to find many different Japanese citrus.

Yuzu harvest season had just ended. You could find yuzu at any major grocery store, and often Kabosu and Sudachi as well.

Premium yuzu at 3 each

Kabosu grown in Tokyo. The owner, an old coffee lady, insisted that the flowers attract many swallowtail butterflies each year.

In Tokyo I found many antenna shops. These shops represent a single prefecture. A great spot to find many different citrus-related products and fresh fruits including Jabara citrus from Wakayama, Yuzu from Koichi, Kabosu from Oita, Shikuwasa from Okinawa and Sudachi, Yukou and Awa Suzuka from Tokushima. Awa Suzuka is apparently a hybrid between Sudachi and Yuzu. It was recently released and Tokushima is currently trying to promote the citrus. I found some more information here: . It was quite an impressive fruit.

Dekopons were promoted a lot! Very high quality and tasty fruit, but often priced at at least 6 per fruit, often double of that. I did look like there were different varieties of dekopons, since the I saw different sizes and colorations of the fruit. But this could be an other class of dekopon.

I visited the Koichi prefecture to look for some Yuzu farms. I mostly saw Citrus being grown in plastic tunnels. In the mountain region of Kochi, Yuzu was instead mostly grown unprotected. It was pretty impressive to see the scale on which yuzu was grown. Almost all of the yuzu I found was the very seedy kind. In fancier restaurants, I was sometimes met with seedless yuzu and sudachi. Unfortunately I have not found any seedless varieties in Europe. In Japan, it was simply available on Amazon.

Very interesting! There is this one article where the Japanese are using it as a rootstock to induce earlier flowering in hybrids, probably for this reason.

I am lucky to have gotten some seeds as well, so I hope to see some flowers the next months.

I am fairly sure Dekopon is seedless. I tried some fruits in Japan, but I never found seeds.

Cold Hardy Citrus / Re: 24 hours of light
« on: December 30, 2022, 06:40:53 AM »
I have grown a lot under 20 hour daycycles. It never gave me any problem. I'd say 24 hrs would be fine

Citrus General Discussion / Citrus germination
« on: December 30, 2022, 02:40:20 AM »
Does anyone happen to have a protocol for properly germinating citrus seeds? I have inconsistent results. Usually the main problem is getting fungus on the seeds after peeling the seed coats. I have previously tried sterilization with bleach and/or disinfection in 40C but that was not able to get rid of the fungus completely (or the growing substrate was not clean). Any help would be appreciated!

Citrus Buy, Sell, & Trade / Re: Looking for Japanese Acid Citrus [EU]
« on: November 01, 2022, 04:27:45 AM »
That is concerning. I am planning of testing them for the disease, and hope for the best.

Are you using LED? Perhaps you are giving too much light.

Citrus General Discussion / Re: Switching from juvenile to adult
« on: October 23, 2022, 12:00:11 PM »
Thank you for sharing. Yuzu is generally not known for preciousness, so I might take a while longer before I can expect the first flowers. Some of my carrizo is starting to branch out in the top, at around 2.5, these might be closer to flowering.

Citrus General Discussion / Variegated seedlings
« on: October 23, 2022, 11:55:40 AM »
Hi, I am germinating some yuzu seedlings, and some of them appear to be variegated. Does anyone have experience with this trait? Does it persist in the seedlings?

Citrus Buy, Sell, & Trade / Re: Looking for Japanese Acid Citrus [EU]
« on: October 16, 2022, 01:53:57 PM »
I used to have a kabosu plant from a seed that came from a fruit bought in France, but it died while I was on vacation a few years ago.

I still have a sudachi, also grown from seed at the same time, in 2015.

It has never fruited yet but it stays outside all winter here in Antwerp (in a rather sheltered location though). If you're interested I can send you cuttings (tell me how to do it thought because I've never sent live plants through the post) or you can drop by if you're ever close to Antwerp.

That's too bad. Adavo still has some small kabosu plants left, which I might buy.

I already have a sudachi, but I would love to get some budwood  :D

Citrus General Discussion / Re: Switching from juvenile to adult
« on: October 10, 2022, 03:55:47 PM »
Thank you for sharing. This gives me a good idea of what to expect. How tall would you say a seedling would be on average to reach maturity?

Citrus General Discussion / Re: Switching from juvenile to adult
« on: October 10, 2022, 06:32:47 AM »
Interesting! I am now growing only the main shoot. Should I cut the heads and let them branch out, or wait for the trees to do it themselves?

Citrus General Discussion / Switching from juvenile to adult
« on: October 06, 2022, 04:26:49 PM »

I have some trees (yuzu) that are reaching almost 2 meters. When could I expect them to become mature? Are there any signs that I can look for when they mature?
The main shoot appears exactly like the new growth I would expect from a grafted yuzu.

Citrus Buy, Sell, & Trade / Re: Looking for Japanese Acid Citrus [EU]
« on: August 19, 2022, 04:40:44 PM »

I had send you message a while ago, did you get it, or did something go wrong?

I must have overlooked you message. I send you a reply.

Citrus General Discussion / Re: Growing under LEDs
« on: July 29, 2022, 02:48:13 AM »
For the LEDs, it depends on what you want to achieve. Do you want to maintain the plants inside until spring? Then I would say you need minimal light. The risk with having a strong light source is that it might trigger flowering (if induction was done outside) or vegatative growth. If your tree can then not sustain that new growth, due to the climate not being optimal, it can kill your trees. I have unfortunately killed trees by moving them inside and letting them grow uncontrollably.

In regards to the deficiency symptoms; I would indeed start with measuring soil pH! An offset pH can interfere with nutrition uptake.

Cold Hardy Citrus / Re: Shortest Growing Season Citrus
« on: July 23, 2022, 08:15:14 AM »
This video might be relevant for you:

Citrus Buy, Sell, & Trade / Re: Looking for Japanese Acid Citrus [EU]
« on: July 22, 2022, 01:15:03 AM »
On a visit to Japan, ( outer Tokyo area ) I saw various Citrus trees in home gardens, and young trees at plant nurseries.
Specialty Citrus fruit was sometimes seen in supermarkets, i.e. unusual Japanese varieties.
I am wondering if there are any Citrus collectors / hobbyists in Japan ?
Any Citrus Forums in Japan ?
It is not hard to find webpages for Citrus farmers growing less common types,
but that is about as far as I have got.

Mature Flying Dragon tree/budwood
In my climate, ungrafted FD seedlings fruit in about 5 years. Also produce some interesting Off Types.
You can speed up their growth by extra heat, shortening the dormancy period.

Many varieties are also available on the Japanese amazon. Due to regulations regulations it's however not possible to import any material into the EU / Export from Japan. Nowadays fruits are being exported from Japan, and that is a way to get the varieties (my sudachi and yuzu are from Japan, and even found an importer selling haruka from Japan).

Interesting about the FD, I will have to try that

Citrus Buy, Sell, & Trade / Re: Looking for Japanese Acid Citrus [EU]
« on: July 21, 2022, 05:04:59 PM »
Updated with a small list :)

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