Echinocactus green discoloration

[qiyao]

Hi all,
My echinocactus grusonii have some discoloration in zones where the spines grows. It has been like this in the last month. Is this normal ? Althought the whole plant in general seems fine.

I repotted it 2 weeks and root seems fine.

Examples:

2.jpeg (96.33 KiB) Viewed 3446 times

3.jpeg (97.97 KiB) Viewed 3446 times

Whole plant:

1.jpeg (92.21 KiB) Viewed 3446 times

Other data:
- I live in mediterranean climate
- He receives lots of light
- When reppoted I did not remove the original soil. So the soil is half nursery mix and half gritty mix (50 % soil 25% vermiculite 25% perlite)

[greenknight]

It doesn't look bad - but you need to have a uniform mix through the entire pot. See: http://www.cactiguide.com/forum/viewtop ... =25&t=9222

Even if the nursery soil didn't contain too much peat, the rule still holds - unless you're using the same mix, you need to remove the old mix from the roots. Water may not move freely between different mixes.

[zpeckler]

It looks ok to me. The older of my two E. grusonii did something similar before corking developed on the lower part of the stem.

I second Greenknight's rec that you repot and totally free up the roots. Having a good growing medium is useless if you've got a big plug of peat encasing the roots.

[Hanazono]

You have a very nice short spine E. grusonii. I do not know the size and age of your cactus but I think it has started to develop coaking.

[Tom in Tucson]

You have a very nice short spine E. grusonii. I do not know the size and age of your cactus but I think it has started to develop coaking.

I agree that the short spined form of Kroenleinia grusonii (Kroenleinia grusonii f. brevispinus or f. intermedius) are some of my favorite types. They aren't just a vegetative mutation, since they keep these forms when grown from seed. The so called corking is normal.

[perez-suarez]

We are propagating Echinocactus grusonii v. intermedia, and v. brevispinus on Gran Canaria.
Look at the pics !
In Winter no less than 13°C in the night, days more than 24°C
Saludos perez-suarez

[Tom in Tucson]

We are propagating Echinocactus grusonii v. intermedia, and v. brevispinus on Gran Canaria.
Look at the pics !
In Winter no less than 13°C in the night, days more than 24°C
Saludos perez-suarez