Comments on: Plants of the Week – July 11 https://www.scottarboretum.org/pw-july-11/ Wed, 27 Aug 2025 21:45:46 +0000 hourly 1 https://wordpress.org/?v=6.8.6 By: Josh Coceano https://www.scottarboretum.org/pw-july-11/#comment-866 Fri, 29 Jul 2011 17:29:12 +0000 http://blogs.scottarboretum.org/gardenseeds/?p=3093#comment-866 In reply to Garden Prince.

We have never propagated Poliothyrsis from seed. The plant is monoecious and requires another plant for proper pollination and fertilization. We have three mature trees in close proximity which have yielded seedlings. Scott McMahan of McMahan’s Nursery in Clermont, Georgia shared several insights. First, was the seed properly pollinated? If pollinated, freshly sown seed should emerge quickly. If the seed was good but allowed to dry, it may be “locked” up for several seasons before dormancy is broken.

]]> By: Garden Prince https://www.scottarboretum.org/pw-july-11/#comment-865 Tue, 26 Jul 2011 08:35:24 +0000 http://blogs.scottarboretum.org/gardenseeds/?p=3093#comment-865 I have a question about Poliothyrsis sinensis. Is it difficult to propagate from seed? I required some seed of this tree last year (November 2010) and sowed it immediately but so far I have not have any germination. Do you know if the seeds need a special treatment like GA-3 treatment? I searched the internet but I have not found anything on seed germination of Poliothyrsis sinensis other than a Arnoldiana article which says that Poliothyrsis sinensis seeds germinate easily without giving any specific details.

Thanks in advance for answering this query.

Greetings,

Garden Prince
The Netherlands (yes, that small country in Werstern Europe!)

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