I have a couple of questions regarding my golden barrel cacti. I have five outdoor plants in a cactus garden on the northwest side of our home. I’ve noticed that the two smaller barrel cacti (one is about the size of a melon, the other the size of a grapefruit) have developed yellowish ribs and the space between each of the ribs is a light green. Are they not receiving enough sunlight? Should I place the barrels in pots and move them to an area with more direct sun? They get about 5 hours of direct sunlight this time of year.
I also water my barrel cacti about once every 10-14 days – are they receiving too much water? If it’s any help, I live in Newark, CA (about an hour south of Berkeley) and have bought some cacti from Cactus Jungle. I appreciate your feedback. Attached are two photos taken during the summer of the cacti in question.
Thank you, David
From the pictures, the cacti look fine. In general, 5 hours is enough sun. A little yellowing could be a sign of too much water; reduce the watering to every 3 to 4 weeks except when you are getting over 90F. You can stop watering them now for the winter unless we have a particularly dry winter.
I recently purchased a cactus (see picture Below) I was given to names either mammillarias – polythele and the succulent plant is a sedum or Crassula and Echinocactus
I was also told two different methods of feeding which are as follows:
1. As far as watering goes, you should give it a small amount, about half a mug every 10-14 days in summer and reducing down to a 1/4 mug every 20-28 days over winter.
from summer hill garden centre 2 Water once a fortnight March to October – suggest a cupful ( not a mug!!!) October to March ignore it Feed every month from March to October ( amount should be on whichever feed you get) October to March do not feed
from Craig House Cacti
Please can you give me the correct name and how often I water it and feed it and where I buy the feed
I am disabled and never looked after one.
Thank you, Mark
Mark, The cactus is a Mammillaria and the succulent is a Sedum. From the name of the nursery, I take it you are in Essex in England.
It’s going to be hard for me to give you exact instructions since I can’t tell what they are planted in. Terrariums are always a bit tricky, but it looks like maybe they are in small pots inside the glass surrounded by gravel. Assuming this is true, you want to make sure when you water that you only water right around the plant itself so that the water gets into the soil.
It won’t take a lot of water, maybe only a tablespoon per plant, but because it is so little water, you will need to water every week. You can water the cactus every 2 weeks in the winter, but the Sedum will want regular water year round. Make sure you don’t overwater – you don’t want any water sitting in the bottom of the glass.
As for feeding – Very little! since it’s in such a small terrarium. I would use a low strength liquid fertilizer like Liquid Seaweed (We use Grow More brand) and use only a tiny amount, no more than twice a year in spring and summer. Good Luck, Peter
I’ve been reading your blog for a while, and I really love when you tell which plant is blooming. Suddenly, I have a need for that too! Something popped a flower today, and I don’t know what it is. Can you tell? What are the other plants I have in that planter?
I came by the store at the end of June and showed you a few pictures of my blooming cactus I got from you last March. It was labelled a subdenudata but you thought it was an eyriesii since the flowers were pink. You asked for a few photos to be sent to you but I have been too busy and forgetful since then to send them to you, until now. So, please see the attached (I’m sending in two e-mails since I don’t know what the capacity of your e-mail account is).
Isolated flowers are still sprouting up and I think a new one is still coming. I think one sprouted what looks like a green fruit after blooming, also (it’s smooth with no needles).
Wow! That’s a slightly different color than the flowers we’ve been getting, but I do think it’s E. eyriesii.
Hi, my Name is Nora. I have some really old cacti in the front yard of my house and would like to remove them or sell them. I am not educated about the plants, and during quick research of the plants I became lost in a pool of information on the diffferent types of plants, and removal process. I would like to to post them on craigslist to sell them, but I have no idea what to price them at. If they are not worth much I still would like give the plants to someone that appreciates the fact that they are 32 years old, and very large! They are pretty neat!
So I guess my question is, do you have any idea what these plants could be fairly priced at? Do you know anyone that may be interesed in these? Should I just have the gardener cut them down?
Sincerely, Clueless Cacti Owner
Nora- You have some very nice cacti!
The large single column is an Echinopsis terscheckii and could be worth a lot, from $500 to $1500 fully rooted in a pot at retail, depending on size and condition, but will be very difficult for someone to dig up and remove without damaging it. It should weigh more than 300 pounds.
The tall multi-branched is a San Pedro, Echinopsis pachanoi and this one would have to be taken in pieces – you wouldn’t be able to get it out of the ground in one plant. The cuttings are a couple dollars per foot, but beware that these are often sold to be ingested as a hallucinogen, so you may want to be careful about posting these on Craigslist.
The short multi-branched is an Oreocereus celsianus and if it can be dug up in one piece and rooted in a pot can be worth $300-$750 at retail, depending on size and condition. But it looks like that would be difficult for it, and it is not worth anything as cuttings.
Karen sends along a picture of her blooming Parodia.
Hello Peter – just wanted to share the new blooms on my Parodia rutilans. I bought this specimen from you over a year ago. At the time it had a crown of bumps at the top and around its belly. Nothing ever happened, but the bumps stayed there. This year some of the “belly bumps” fell off but the crown is blooming! So pretty! I especially like the little red flower coming from the center of the yellow. Your bloom food really works cuz I’ve had more blooms this year than ever before.
Hello there, Cactus Jungle gurus! I was planning on sending some pics of my blooming plants in hopes you could identify them, but I think one is the same Cereus Monstrose you posted earlier today [Friday]. The first (is) of the blooms of what I think this the Cereus Monstrose, the (other) is the unknown. My plants are not very exotic, but they are quite special to me in their own way. We’re just south of Sonoma and they seem quite happy here, so long as they’re protected from the heaviest frost. I’m hoping I can finally put some name tags on them after you have a look. Thank you very much!
Michelle, The first is definitely a Cereus monstrose in bloom. The 2nd was a bit trickier to find, but it is Harrisia tetracantha, although it used to be called Cereus tephracanthus since it appears to be similar to other Cereuses and is a night-bloomer, but the flower structure is completely different so they moved it to Harrisia for good fun.
I will soon be purchasing some of your Ultra Soil Blend for Cactus and Succulent and was hoping you could tell me what kind of cactus is in the photos below (I found it languishing outside an antique shop and brought it home to provide it with a little better care). It’s currently about 23″ high and sits in a 7″ square pot.
In addition, could you answer a couple of other questions regarding the cactus:
1. Again, what kind of cactus is it?
2. Could you recommend the optimal size pot for its size?
3. How much direct sunlight would you recommend for it during the hot days of summer here in Richmond, VA?
Many thanks for any advice you could offer. I appreciate it (and wish your garden center were here in my neck of the woods).
Elizabeth, Your cactus is a Cereus Monstrose, a genetic mutation off a more standard Cereus species. For pot size we recommend allowing enough space below the soil line for root mass that will match the amount of plant mass above. A 2ft. cactus would usually want to be in a standard 12″ pot, but it depends on height as well as width.
I can’t give you exact care for your location since I’m not familiar with your climate. But if you are hot you may want to provide it some afternoon shade. Peter
Dani, near Santa Cruz, sends along a photo of her Bearded Iris.
Does anyone know Bearded Irises better than me who can tell us what the variety is? One could start looking here. Of course, we only sell the Pacific Coast Irises at the store, but that doesn’t mean we can’t admire others.
Hi, love your blog! I’ve had these haworthia plants for about 1-2 years, while they do ok (haven’t managed to kill them yet), but they just don’t look as healthy and lush as the ones I see in nurseries and pictures I see online. They get morning sun until about 10-11, then they’re in shade for the rest of the day. They’re a little dry looking, I’m hesitant to water them too much fearing of root rot. I water about once every 2 weeks. Any idea how I can make them “better looking”?
Thanks in advance! RC
RC, Your Haworthias look fine. In fact, they look great. I would say you are doing a stellar job with them. If you are at all concerned that they are a little less lush than some others online you’ve seen, in general that’s because other people do grow them with more water, but they are very rot prone when grown that way, less healthy, and less likely to survive long term. If you want, you can reduce the amount of light they get so that instead of 3-4 hours of morning sun they only get 2 hours, and then they will be less red, more green, and a little more lush. But considering that your plants look very healthy and natural, I’m not sure I would change anything. Peter
This is growing on E Washington St. in Washington, IA; the photo was taken 26 March 2012. I’ve seen it on previous trips as well, and thought of y’all, but things hadn’t worked out to take a picture of it, and we don’t actually go to Washington that often.
I think the bloom is new since the last time I saw it. Both the color (black?!) and form (more like an aroid flower than a cactus flower, really) are noteworthy. I presume, based on the bloom, that this is a Discocactus of some sort? It’s a slow grower, but I suppose that’s to be expected for any Iowa cacti.
First you need to click the picture above to get a closer look at the details. And then, here’s a Discocactus in bloom, so we can judge the similarities and determine the species.
Hey Guys, Thank you SO much for taking the time to answer my question. I was in the City yesterday & discovered this growing in my old neighborhood…..since my partner & I collect unusual cacti & succulents, I was wondering if you could identify this specimen so I can find one for my Honey for his upcoming birthday.
Thank you, James
It is a yummy Aloe marlothii! One of the Mountain Aloes of South Africa.
And we have cute babies as well as a few larger in stock. I even have a 15 gallon one at our grow-space that looks like the larger one in your photo…