Cestrums in What Size Containers

susanlynne48(OKC7a)May 5, 2010

I have two Cestrums, nocturnum and 'Bacchus'. I want to grow them in containers so I can bring them in over winter. They were tiny plants when I got them, but now the roots have filled the 1 gallon containers I potted them up into.

I know that in warmers zones, they can get quite large, especially in the ground. So, I am wondering what size container I should use for them in my more temperate climate. I have some 5 gallon containers. Are they big enuff. I also have a 20 gallon container.

I appreciate any help you can give me. The 'Bacchus' already has a bloom on it.

Susan

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susanlynne48(OKC7a)

Bump, due to lack of response on this forum.

    Bookmark   May 12, 2010 at 9:29PM
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jason83(Zone 8b/9a (North Florida))

Since you are in zone 7a, I would recommend pruning 50% of the plant and potting it into a 3-5 gallon container, if it's at least 2.5-3 feet tall and then bring it indoors when temperatures start to drop below 60ish. That will promote side shoots and bushiness to keep it a manageable size indoors.

Then what you can do is take the parts of the plant that you cut off and stick them into smaller pots of soil and they will root like mad. When I prune my Cestrum's I always take the stems and pot them - they all root! I would wager some rooting hormone would make the success rate practically 100%! Just keep the soil and the cuttings moist. :)

That is of course if you have the space for them. Outdoors here they tend to grow somewhat lopsided... some stalks will be tall while others short. They practically die back to the ground in winter here in N. FL with no protection and suffer no damage at all when protected, so they are more like a perennial here in warm temperate zones.

You might even try planting some of your pruned cuttings outdoors and protecting them with mulch, straw, plastic and blankets and they just might spring back up for you in 7a. :)

Hope this helps!

    Bookmark   August 4, 2010 at 11:12PM
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