Lighting: | Likes plenty of light, at least four hours of direct sunlight daily. |
Temperature: | Needs warmth in winter. Prefers night temperatures between 50-65F and day temperatures of 68F or higher. Can successfully be grown indoors, but the use of a nearby fan to reduce the liklihood of fungal infestation is recommended. |
Watering: | Moderate. When grown indoors, use of a moisture tray to maintain humidity is recommended. |
Feeding: | Every two weeks during growth, using Miracid. Reduce feeding to monthly during winter. |
Repotting: | Lesniewicz recommends transplanting in fall or winter only, but posters to RAB indicated that repotting in mid-spring to midsummer is OK. Keep root pruning to a minimum. Use fast draining soil. Limit water until the plant is firmly established to reduce risk of root rot. |
Styling: | Do major pruning in mid to late spring, after flowering. Do not prune all the green foliage off a branch, as this will cause the branch to die back. Otherwise, buds back with vigor. Continue to prune as necessary during growth. Carissa grows rapidly, especially in hot climates, so pruning may be frequent. These trees make good informal uprights or cascades. Older branches can be brittle, so use caution when wiring. Check wiring often, due to the rapid growth of the plant. |
Propagation: | Roots readily from cuttings, especially lignified ones. Will root when placed in a glass of water. |
Pests etc.: | Prone to fungal infestation. Spider mites and scale are occasional problems. On the whole, a very strong plant. |
================================================================= From: "Richard D. Choate"Subject: Re: Natal Plum (Carissa Macrocarpa) In a message dated 96-02-21 07:13:44 EST, Saleem wrote: >I just got my first bonsai as a gift. It's a 10" high Natal Plum (Carissa >Macrocarpa). I have no idea of how to take care of it. I looked into some >bonsai books but found very little reference to this particular species. >Can anyone tell me how and when to: >water (how much) Let it become somewhat (a know, a nebulous term) dry between waterings. As with all bonsai, never let it become totally dry but it doesn't like to be kept too wet. >prune Major pruning should be done in mid to late spring. Never prune so severely that you have removed all of the foliage on a branch. Continue pruning and pinching throughout the growing season. >repot (it's in a ugly pot from the nursery) Mid-spring through mid-summer. >shape (what kind, because I don't know what it should look like) I can't help much here since I can't see the tree. Natal plums look good as informal uprights and cascades, though. [snip] Rick southernmost Tx ================================================================= Date: Sat, 23 Nov 1996 01:42:31 -0600 From: Phil Stephens At 12:10 PM 11/22/96 GMT, you wrote: >Does anybody know what type of soil mix, and what type of lighting is required >for a Natal Plum? I've had incredible results with Carissa! I've used a fast-draining soil of Sphagnum, compost, pine bark mulch, and fired clay aggregate. I've fed with Miracid. I've let them soak up all the Oklahoma sun they could....I don't know the minimum light requirement they need but they obviously love all they can get. These trees have generally proven to be unbelievably tough and vigorous- I had to buy kryptonite wire to have any hope of controlling mine. ;-{ ) A sunny window seems to work just fine for them; I've summered mine outside but many of the hundreds of cuttings recipients I've given these to keep them in sunny windows year-round. I've also seen them planted in Wal-Mart potting soil with no ill effects. Good luck, Phil Tulsa, Oklahoma USA USDA Zone 6, almost 7. Twilight Zone A1. "Strive for a day when 'NRA' means 'Not Relevant Anymore'" -Dennis Miller, _The Rants_ ================================================================= Date: Sat, 23 Nov 1996 07:12:43 -0500 From: Michael Persiano In a message dated 96-11-23 01:43:02 EST, jdietz@VT.EDU (Jedi) writes: << Does anybody know what type of soil mix, and what type of lighting is required for a Natal Plum? >> Jedi: Carissa grandiflora, a South African plant, requires conditions suitable for most tropical bonsai, i.e., plenty of light and warmth to promote its dense, thorny foliar and fragrant floral growth. Flowers are a white, and the fruit is deep red and edible. When the specimen is moved indoors for the winter, be certain to place it over a suiban (shallow water tray) for additional moisture. Do not allow the water to make contact with the drainage holes in the pot. If you cannot position the Carissa near a strong source of natural light, purchase a grow light to provide an adequate source. Run a fan in the area to minimize the chances of fungus and unfriendly infestations. Feeding during the winter should be reduced to once every 3-4 weeks. Wire this specimen with care: its branches can be stiff and will easily crack. Prune back the growth on your Carissa after flowering. Root pruning should be performed in early summer. For those who work with this specimen in the south, a deep pot is recommended. Root pruning should not be aggressive, and overwatering should be avoided to minimize the chances of developing root rot and the decay of old bark. The soil mix should be 50 percent aggregate and 50 percent bark--more bark if your area is extremely hot. If you post your regional location, members of the group will provide you with their mixes. Also, your local bonsai organizations should be contacted to determine the best soil for your area. Cordially, Michael Persiano ================================================================= From: Phil Stephens My C. grandiflora are thornless....is this perhaps something that appears much later? I have gotten a couple of flowers on mine....but no thorns. Thank goodness. ;-{) Some of the nodes have short, soft whiskery growths, almost like a start of an aerial root, but nothing I would have thought to call a thorn. This is a plant that seems to thrive best in sun and humid heat....my 1st cuttings came from Anita in Maryland, and the rates of growth and lignification I've gotten here in OK seem far beyond anything ever seen on the parent plants in a saner climate despite otherwise comparable care. I got the green rooted cuttings in March '96; since then I've achieved lignification and flowering as well as rapid growth in size and FOUR generations of cuttings! My Carissas are quite possibly the toughest woody plants I've ever seen. I haven't gone so far as to completely defoliate a branch, but this plant seems to bud back on old wood with extreme ease and vigor. Growth of shoots is extremely rapid, and these need to be watched closely during the height of the growing seasons. Success of cuttings is almost guaranteed, but lignified wood seems to root more quickly. I've had excellent, no, _unimaginable_ success with them by simply rooting the cuttings in a glass of water and potting once roots have started. Thanks, Phil Tulsa, Oklahoma USA USDA Zone 6, almost 7. Twilight Zone A1. "Remember, it is we who create our own reality...even though a lot of reality is now made in Taiwan, because of the cheaper labor." -Swami Beyondananda ================================================================= From: Joseph W Kraatz Carissa don't require high humidity. They grow like weeds here in inland San Diego County which is seldom humid. Very indestructable. Joe, http://members.aol.com/exoticlvs
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