Avatar for Haydnbam
May 5, 2018 7:13 AM CST
Thread OP
Hi folks I bought a new cactus today I couldn't resist buying. I'm just wondering if anyone knows anything about this species and what the growths are. I have placed him on a nice sunny windowsill which receives a lot of sunlight when we get sun here in the UK. How often should I water him in the summer? Thanks everyone
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Avatar for rongs
May 5, 2018 7:58 AM CST
United Kingdom
That's not a cactus at all-it's a Euphorbia one of the "Other Succulents" and the "growths" are seed pods which have formed after flowering
If you leave the seed pods on the plant they will dry off and will explode in typical Euphorbia fashion throwing seeds everywhere
You can treat it as a cactus and water sparingly and in full sun it will flower again
May 5, 2018 9:07 AM CST
Name: Baja
Baja California (Zone 11b)
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Yes, that looks like Euphorbia ingens (a large tree) and those are fruit. It has the potential to grow enormous, especially relative to the size of the pot. If you keep it long term in a pot, be prepared for it to outgrow its space and need periodic restarting from cuttings every few years. Avoid touching the sap as it is a pretty strong irritant. Provide the most light possible indoors (right by your sunniest window) and water well when the soil is dry at depth, which might take a week or two during the warmer, brighter months. If you choose to up the pot size at any time, try to use fast-draining soil.

More info here (and see comment at bottom of page).

Candelabra Tree (Euphorbia ingens)
Last edited by Baja_Costero May 5, 2018 1:55 PM Icon for preview
Avatar for Haydnbam
May 6, 2018 2:37 AM CST
Thread OP
That's fantastic thankyou very kindly for your advice it's really appreciated. In the past I think I may have gone a little over the top and watered my cactuses/succulents measuring out the water first rather than just guessing how much water they require. How much water do you reccomend I water it? Should I just water it until water drains out of the soil at the bottom of the pot? Thanks again 😀
May 6, 2018 2:47 AM CST
Name: Sue Taylor
Northumberland, UK
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When watering give it a thorough watering so that the water runs out from the bottom. Discard any water that hasn't been absorbed after 10 minutes or so from the saucer. The wait until the compost feels dry to a depth of a couple of inches before you water again.
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