HELP! New to succulents, soil has insufficient drainage, gritty mix?
Robyn Jefferson
6 years ago
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rina_Ontario,Canada 5a
6 years agolast modified: 6 years agomesembs
6 years agoRelated Discussions
Al's Gritty Mix for Succulents/Cacti- 1:1:1 with bark or no bark?
Comments (38)I've been using a 50:50 base mix of perlite/ turface for many years. You can easily modify this mix for different needs. Most mesembs benefit from the addition of a clayey component. For me, I just dig beyond the topsoil in my yard for some good dirt. I also substitute perlite for some lava rock and small pebbles. It's a heavier, longer lasting mix which works when repotting infrequently for mesembs. This same mix is my preference for small cactus species like Aztekium, Blossfeldia, tricky mamms like luethyi, etc. "bigger" plants like some Crassula, aloes, aeonium etc. you could add more perlite to lighten big pots. It also makes it safer to leave outdoors all spring/summer/fall with rain. My palms, plumeria and cycads live in this mix too. Floating perlite is not an issue. But it does easily displace with high water pressure like from a hose. Some form of fertilizer is a must. I'm also a fan of submerging small pots with small plants into bigger, deeper containers to help stabilize root temperatures. Practically any healthy plant I've ever had to repot always has roots circling the bottom. I really don't understand the concept of shallow or regular pots. I think the deeper the better. I haven't really noticed any exception. For some species it's mandatory. Haworthias, many cactus plants with tuberous roots. Even Lithops which tolerate a shallow home will grow much better in very deep pots. Pleiospilos too. For anyone unsure or unconvinced, try an experiment. Take a pot with any plant you want, and bury it into much deeper pot for a growing season. Pull it out later and see what you find. Bury an Aloe, pachypodium or most any strong Echeveria or similar in the garden and watch it take off. We would all be great at bonsai, plenty good experience with root constriction and limiting growth lol!...See MoreAl's gritty mix for succulents in ground
Comments (4)There is no advantage to using gritty mix for inground plantings. In fact, it could be detrimental - inground plantings fare best in a soil that is of uniform texture so amending individual planting holes is discouraged. Does your native soil drain well? There are various perc tests you can try to assess drainage but if slower than desired drainage is present, amending the entire planting area may be advised. Adding something like granite grit or soil conditioner (usually composted bark fines) can help. As long as the soil drains well, you shouldn't have any worries. Mass succulent plantings are present all over SoCal and they can handle heavy seasonal rains very well....See MoreQuestion soil, mixture, gritty mix composition for crassula
Comments (6)hills Hi, it's not about your English (mine isn't that great either:)!), just a timing - your post dropped down since there were many others at the same time, and ppl didn't notice it. The ingredients you mentioned are all pretty good. I never used pumice, zeolith, basalt chips - but they have been mentioned and are being used. I think that any of them would be a good addition to the gritty mix. Just try to keep all the particles similar in size. I use what I can find easily: perlite, grit (I use chicken grit) and turface, mixed in equal amounts (more or less-I don't measure anymore). Bark is one organic ingredient to be added to the gritty mix. I am not using it now since I have hard time to find it small enough. It is a chore to break large pieces... My comments on your plants: the large plant looks good, despite what I think, is peaty potting soil. Peaty mixes don't drain well, often become either too saturated or too dry, and may also attract some pests, especially indoors. Re-potting into well draining mix gives succulents good drainage and air circulation around the root ball. Jades are quite tolerant and your watering must have been good. It has a nice color too, was it outdoors during the summer? The small plant seems to be in same mix, and I think it is potted too deeply. It also looks quite good to me. The size of the pot is fine, but I would put it into gritty and plant it higher. Many use fertilizers with 3-1-2 ratio of NPK. I use MiracleGro 24-8-16. Dyna-Gro Foliage-Pro 9-3-6 is recommended (I can't find it in Canada...) Where are the plants going to spend winter? They should get as much light as possible. I have to use supplemental lights, otherwise they get very etiolated. Last 2 winters they spent in basement, under lights, little cooler temps (no more than 50*F) and they were not fertilized at all - I don't want to 'encourage' growth if there isn't sufficient light and get them etiolated even more. Rina...See MoreNew addict with questions re: gritty mix, fertilizing, everything, etc
Comments (3)Well, I knew this would happen, I found some of the answers to my questions. Noting them here for anyone with the same questions. Al (talpa) on the subject of fertilizing after repotting, and whether to water with or without fertilizer first. Link here. "You can fertilize when you see signs of new growth or after a couple of weeks. What will you be using for fertilizer? The only time I moisten the soil before I fertilize with soluble fertilizer is if the plant is obviously very dry. Even then, if I'm using reduced dosages and fertilizing often, I might fertilize a plant I suspect is dry. It's always better to err on the side of caution, though, so your plan to water first and then fertilize a few minutes later is the safe bet."...See MoreHelen Agius (Adelaide,Sth Aus) USDA Z10b
6 years agorina_Ontario,Canada 5a
6 years agosocks
6 years agolast modified: 6 years agorina_Ontario,Canada 5a
6 years agoRobyn Jefferson
6 years agolast modified: 6 years agorina_Ontario,Canada 5a
6 years agolast modified: 6 years agoRobyn Jefferson
6 years agoRobyn Jefferson
6 years agorina_Ontario,Canada 5a
6 years agolast modified: 6 years agoRobyn Jefferson
6 years agorina_Ontario,Canada 5a
6 years agoRobyn Jefferson
6 years agolast modified: 6 years ago
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Robyn JeffersonOriginal Author