Rooting of offsets

Multiplying your cacti vegetatively.
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Hanazono
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Rooting of offsets

Post by Hanazono »

I removed offsets of Obregonia denegrii attached on grafted plants.
4 of 5 cm diameter and 10 of 3 cm diameter as shown on the photo.
Image
Since some of offsets were quite small, I used a special method which was used for the rooting of imported cacti years ago.
Offsets were dried just 5 days and buried in pottingmix, pumice sand.
5 cm diameter one
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3 cm diameter one
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Mark
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Re: Rooting of offsets

Post by Mark »

When do you water them? After a few months?

Mark
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

I have planned to water 1 month after the setting.
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Brunãozinho
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Re: Rooting of offsets

Post by Brunãozinho »

How are they doing now?
Bruno
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

Only several short roots have been developed.
I can not see any significant effect for the method at moment.
I will keep them until next spring.
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

Updated information:
They have rooted and grown well except 2 small ones.
These 2 have not died but are not health enough.
The photo is one of good ones.
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7george
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Re: Rooting of offsets

Post by 7george »

So now you can tell us that 4 cm diameter is about the minimum size for successful rooting of this species offsets. At least at conditions described above.

So is my experience too: Hard-rooting species set up for rooting in autumn usually wait until next spring or hot weather time, sometimes a year long or more. So the size is important to let them keep their bodies hydratated long enough. Spraying and occasional light watering also help this.
If your cacti mess in your job just forget about the job.
°C = (°F - 32)/1.8
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

I have been under trial of harder one for rooting, which is an Aztekium hintonii.
The size is 4 cm in diameter.
I set it in September last year, early spring in here.
I will wait until next spring.
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

I removed off-sets from grafted plants and set them for rooting in September last year.
I did not pick them up but it seemed they all were rooted.

Ariocarpus retusus related cultivars
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Echinocactus horizonthalonius
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

These cacti are Astrophytum hybrid, hakujou fukuryu banjyaku which I set offsets for rooting last September.
They are in 50 mm square tubes.
All of them have rooted well.
I have to repot them soon.
Image

5 hakujou fukuryu banjyaku were degrafted lately.
I collected 9 offses from them.
They will be set soon for the rooting.
Image
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

It is still in winter in here but I set offsets in 5 cm square tubes in this morning.
16-Escobaria minima
19-Mammillaria ferrerae v albiflora

I will start watering next month.
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

I repotted Astrophytum hybrid, hakujou fukuryu banjyaku posted the photo on 5th July.

After repotted
Roots were developed very well during past 1 year.
This hybrid is mixed the gene of ornatum which may be the reason of the good root development.
Image

Cutting long roots off
This allows a easy repotting job.
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After repotting
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ahmedhm
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Re: Rooting of offsets

Post by ahmedhm »

What is rooting medium you used for rooting astrophytum and ariocarpus?
Can you explain full methods step?
And many thanks
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Hanazono
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Re: Rooting of offsets

Post by Hanazono »

ahmedhm

I use a same method for Astrophytum and Ariocarpus.

1. Preparation of off-set
Select off-sets which are more than 3 cm in diameter, small off-sets are hard to root.
Cut off an off-set from a mother cactus by a knife, cutting face should be small.
Smaller face is easier to root.
Spray drying medium over cutting face, I use garden lime as the drying medium.
Dry the off-set for 2 weeks, very long drying is not good for the small off-set, 3 cm in diameter.

2. Setting pot
The main mix is 60% pumice sand and 40% organic material.
Top 15~20 mm is pumice sand only, no organic materials.
Water from the bottom of the pot and make a complete wet potting mix.

3. Set off-set up
Push the off-set on the potting mix slightly
Cover off-set over by a tissue paper

Do not touch off-sets, do not check rooting condition
Water from the bottom of pot when the surface of potting mix dried.

Hanazono
ahmedhm
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Re: Rooting of offsets

Post by ahmedhm »

Okay
Thanks
Can I use vermiculite instead of pumice sand?
And why use tissue paper?
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