Euphorbia needs a name

Ohio_Green_Thumb(Zone 5b NW Ohio)October 16, 2005

I like this petite Euphorbia. Besides a species name, can you tell me its growth habits?

Amy

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deefar(zone 5 NY)

I think this is a corn cob euphorbia. I can't think of the name...sorry.

Dawn

    Bookmark   October 16, 2005 at 9:42PM
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rosemariero(Z9 SW SUNDiegoCA)

I hadn't seen them with leaves before, so I hesitated to say, but now that Dawn has said Corn Cob Euphorbia, that's what I think it is. I checked Frank's site (linked below)~see Euphorbia mammillaris.

~Rosemarie

Here is a link that might be useful: Euphoprbia mammillaris

    Bookmark   October 16, 2005 at 10:47PM
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Ohio_Green_Thumb(Zone 5b NW Ohio)

Thanks ladies, you're so helpful! :)
Amy

    Bookmark   October 17, 2005 at 1:23AM
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deefar(zone 5 NY)

YES, thanks Rosemarie! That the name mammillaria. I could not think of it. I have the Variegated kind. You got yourself a nice one Amy. If you'd like Amy, I can give you some of my stems next spring. They root fairly easily.

Dawn

    Bookmark   October 17, 2005 at 6:02AM
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www_euphorbia_de(Germany)

Amy,
though your plant is a baby yet and with the age its branches may increase in thickness, to me it looks more like E. submammillaris.

Typical branch diameters are
- E. mammillaris: 4 to 6 cm (the variegated form which might in fact be E. fimbriata is slimmer),
- E. submammillaris: 1.5 to 2.5 cm (slimmer again is its "fa. pfersdorfii").

Frank
www.euphorbia.de

    Bookmark   October 17, 2005 at 11:10AM
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Ohio_Green_Thumb(Zone 5b NW Ohio)

Thanks Frank. I was looking at your website last night, comparing the two species. It's very helpful!
Amy

    Bookmark   October 17, 2005 at 12:31PM
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kakozord(UK)

Nice plant Amy.

Whilst we're on the subject, have any of you people heard of 'Euphorbia Pentagona'. I got this little thorny guy a month or two back but can't seem to find anything on how to grow it.

It is a columnar succulent with large thorns and was just labeled 'euphorbia pentagona'. Google gives lots of results but nothing tells me how to care for this plant.

Any help would be greatly appreciated.

Cheers

Kyle

    Bookmark   October 17, 2005 at 2:26PM
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www_euphorbia_de(Germany)

Kyle,
E. pentagona is an easy to care plant. Treat it like the closely related E. enopla, heptagona, mammillaris, ferox etc. In other words: like average cacti but with more warmth in winter.

Frank
www.euphorbia.de

    Bookmark   October 18, 2005 at 12:15PM
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kakozord(UK)

OK Cheers Frank.

Sorry about the delay, I forgot I posted this. Right, dry dormancy on my windowsill. I'll start fetching it inside the room at night when temps get to low 50's.

Also, do you know how big this guy will grow?

Thanks

Kyle

    Bookmark   October 23, 2005 at 12:13PM
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www_euphorbia_de(Germany)

Kyle,
E. pentagona in habitat builds a compact shrub up to 3 m. Cultivated plants can get even larger. In about ten years your plant will suit better to a larger greenhouse than to a windowsill I think.

Hmmm, making a projection what the content of my greenhouse will look like in about ten years: There will not remain any free space for a bug.
I'll better downsize the plants and take some cuttings!

Frank
www.euphorbia.de

    Bookmark   October 24, 2005 at 12:59PM
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kakozord(UK)

Wow nine feet, that's huge!

I live in England which isn't exactly hot so it'll probably be more like 20 years. It'll be living in the garden if it gets that big with a shady corner of the room for Winter. It sure would look impressive!

Thanks for the info.

Kyle

    Bookmark   October 27, 2005 at 12:27PM
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