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Aug 9, 2015 4:27 PM CST
Name: Linda
Tucson, Arizona
Morning Glories Charter ATP Member I was one of the first 300 contributors to the plant database! Region: United States of America Amaryllis Hummingbirder
Region: Southwest Gardening Echinacea Roses Birds Seed Starter Plumerias
I was wondering if any one could id this volunteer Cactus I found yesterday growing between and kind of under two large border rocks. I dug it up and potted it and later in the afternoon the beautiful flowers opened. My yard seems to get lots of volunteer Cactus though I am not a particular fan of Cactus. However, this one has really pretty flowers. Thanks for any info.
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" And the Lord God planted a garden eastward in Eden" Genesis 2:8
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Aug 9, 2015 5:38 PM CST

Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Forum moderator
Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals Hosted a Not-A-Raffle-Raffle
Can't help you but it's pretty!! Thumbs up
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Aug 10, 2015 1:27 PM CST
Name: Linda
Tucson, Arizona
Morning Glories Charter ATP Member I was one of the first 300 contributors to the plant database! Region: United States of America Amaryllis Hummingbirder
Region: Southwest Gardening Echinacea Roses Birds Seed Starter Plumerias
Thank You! Hetty
" And the Lord God planted a garden eastward in Eden" Genesis 2:8
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Aug 16, 2015 6:23 AM CST
Name: Kate
Holmes Beach, FL (Zone 10a)
Not all those who wander are lost.
Bromeliad Cactus and Succulents Region: Florida Foliage Fan Orchids Organic Gardener
Plant and/or Seed Trader Tropicals Xeriscape
It looks like a Mammillaria of some sort with that halo of flowers. I would love to have volunteer cacti like that! So pretty.
"A garden isn't meant to be useful. It's for joy." - Rumer Godden
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Aug 16, 2015 9:34 AM CST
Name: Linda
Tucson, Arizona
Morning Glories Charter ATP Member I was one of the first 300 contributors to the plant database! Region: United States of America Amaryllis Hummingbirder
Region: Southwest Gardening Echinacea Roses Birds Seed Starter Plumerias
Thank You! very much for that info Kate. I will look that up. Big Grin
" And the Lord God planted a garden eastward in Eden" Genesis 2:8
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Jan 13, 2016 10:22 PM CST
Name: Wolfgang Bleicher
Germany / Bavaria (Zone 7a)
Garden Photography Container Gardener Region: Europe Sempervivums Photo Contest Winner: 2015
could be a Mammillaria blossfeldiana or the Mammillaria grahamii, which grows wild in Arizona
Last edited by turini Jan 13, 2016 10:25 PM Icon for preview
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Jan 13, 2016 10:26 PM CST
Name: Linda
Tucson, Arizona
Morning Glories Charter ATP Member I was one of the first 300 contributors to the plant database! Region: United States of America Amaryllis Hummingbirder
Region: Southwest Gardening Echinacea Roses Birds Seed Starter Plumerias
Thank You! Wolfgang for that info. Thumbs up
" And the Lord God planted a garden eastward in Eden" Genesis 2:8
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Jan 14, 2016 12:13 AM CST
Name: Karen
New Mexico (Zone 8a)
Region: New Mexico Region: Arizona Region: Ukraine Cactus and Succulents Plant Identifier Plays in the sandbox
Greenhouse Bromeliad Adeniums Morning Glories Avid Green Pages Reviewer Brugmansias
What about mamillaria microcarpia?
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Jan 14, 2016 9:35 AM CST
Name: Wolfgang Bleicher
Germany / Bavaria (Zone 7a)
Garden Photography Container Gardener Region: Europe Sempervivums Photo Contest Winner: 2015
M. microcarpa is synonym to grahamii.
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Jan 14, 2016 10:23 AM CST
Name: Karen
New Mexico (Zone 8a)
Region: New Mexico Region: Arizona Region: Ukraine Cactus and Succulents Plant Identifier Plays in the sandbox
Greenhouse Bromeliad Adeniums Morning Glories Avid Green Pages Reviewer Brugmansias
Thanks, Turini. I can't keep up with all the ID changes. Most of my plants need new labels!
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Jan 14, 2016 3:48 PM CST
Moderator
Name: Thijs van Soest
Tempe, AZ (Zone 9b)
Region: Arizona Enjoys or suffers hot summers Cactus and Succulents Xeriscape Adeniums Hybridizer
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My vote also goes to M. grahamii.
It is what it is!
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Jan 14, 2016 4:05 PM CST
Name: Linda
Tucson, Arizona
Morning Glories Charter ATP Member I was one of the first 300 contributors to the plant database! Region: United States of America Amaryllis Hummingbirder
Region: Southwest Gardening Echinacea Roses Birds Seed Starter Plumerias
Thanks to all for the information! Thumbs up
" And the Lord God planted a garden eastward in Eden" Genesis 2:8
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Jan 14, 2016 5:50 PM CST
Moderator
Name: Baja
Baja California (Zone 11b)
Cactus and Succulents Seed Starter Xeriscape Container Gardener Hummingbirder Native Plants and Wildflowers
Garden Photography Region: Mexico Plant Identifier Forum moderator Plant Database Moderator Garden Ideas: Level 1
Pretty little volunteer, that's awesome. You may want to reconsider the soil you potted it up in... Mammillarias as a group like a well draining mix (like half rock), and don't like to stay wet for too long. You can mix regular potting soil with perlite or pumice (or lava rock or whatever you have around) and arrive at a very cactus-friendly mix.

Otherwise I would advise caution to avoid overwatering (and keep the pot under cover to avoid excess rain). The rule of thumb with these plants is to wait until the soil is dry, then water well. They are probably going to be more finicky in a pot then they would be in the ground, for what it's worth.
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Jan 14, 2016 6:50 PM CST
Name: Karen
New Mexico (Zone 8a)
Region: New Mexico Region: Arizona Region: Ukraine Cactus and Succulents Plant Identifier Plays in the sandbox
Greenhouse Bromeliad Adeniums Morning Glories Avid Green Pages Reviewer Brugmansias
I have some outside in Scottsdale, AZ. I let the winter rains water them, and water maybe 3 times during the hot summer and they all bloom and are happy. They don't need much water, for sure. When we planted them in the ground, we dug out our clay soil and amended it with a cactus type mix with extra pumice and perlite. Even when we get flooding rains, the cactus are happy.
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Jan 14, 2016 9:45 PM CST
Name: Linda
Tucson, Arizona
Morning Glories Charter ATP Member I was one of the first 300 contributors to the plant database! Region: United States of America Amaryllis Hummingbirder
Region: Southwest Gardening Echinacea Roses Birds Seed Starter Plumerias
Baja_Costero said:Pretty little volunteer, that's awesome. You may want to reconsider the soil you potted it up in... Mammillarias as a group like a well draining mix (like half rock), and don't like to stay wet for too long. You can mix regular potting soil with perlite or pumice (or lava rock or whatever you have around) and arrive at a very cactus-friendly mix.

Otherwise I would advise caution to avoid overwatering (and keep the pot under cover to avoid excess rain). The rule of thumb with these plants is to wait until the soil is dry, then water well. They are probably going to be more finicky in a pot then they would be in the ground, for what it's worth.


Thank You! Baja for that information. When I found it I potted it using a Cactus Mix. Seems to be happy so far. Thumbs up
" And the Lord God planted a garden eastward in Eden" Genesis 2:8
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Jan 14, 2016 9:54 PM CST
Name: Linda
Tucson, Arizona
Morning Glories Charter ATP Member I was one of the first 300 contributors to the plant database! Region: United States of America Amaryllis Hummingbirder
Region: Southwest Gardening Echinacea Roses Birds Seed Starter Plumerias
Thank You! Karen for telling me about your experiences with this Cactus. I have learned so much here. Thumbs up
" And the Lord God planted a garden eastward in Eden" Genesis 2:8
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