Stapelia is not a cactus. Anyway if it was growing indoors when you bought it and now you have it sitting outside in full sun exposure during a hot spell you are probably burning it.

No but it is a succulent which is appropriate for this forum. I moved the Stapelia to where it gets sun until 1pm max. It has some black spots that look like necrotic burnt areas but so far it is not getting worse.

Z

Black necrotic spots look more like fungal issues to me.

But the blackening happened fast and not until I planted it in the sun. They are dry so I won't worry for now...

Z

Do you grow them outside in the Seattle area outside in summer? Any tips?

I grow all my cacti and succs outside in summer. They like the heat and most will prefer the sunlight that just cannot be replicated well through a window. I find it very telling that they start to push a lot of growth as soon as they hit the outdoors after being in stasis through most of the winter inside :-) Grow lights don't even encourage much growth.

My local nursery is having a cacti and succulent weekend thing at the moment and has brought in a huge array of cool plants. These are a huge weakness with me and I bought a bunch.......more than I should!! Good thing I receive a generous discount :-)

Discounts give us license to buy more plants! :). Yes I put out my tillandsia in full shade outside which is still way more light than they receive indoors. Im hoping they start pushing blooms before the end of summer. The only ones I don't put outside are the peace lily and pothos.

Z

All my indoor plants go outside during the summer. The Stapilias get partial sun and mostly shade from a Vine Maple planted in front of the south facing deck. I water intermittently. I let Stapelia shrivel before I start a short watering cycle. Think south Africa climate.

Will letting Stapelia shrivel affect their flowering at all?

I 'think' it promotes flowering when water is given to it after being dormant.

Well since it is the rainy season in South Africa right now, I will just water it fairly regularly until temps go back down. I say this almost laughing 'cause our temps never came up! :( it was low 60s today...

Z

Z Man, how is your Stapelia doing now?