Difficult seed profiles
These species were identified by participants at Kew's 'Difficult' Seeds Project workshops as showing poor germination during initial testing and/or during re-tests after storage. Low germination may be due to inherent issues such as seed storage behaviour, dormancy or seed longevity, or handling and storage difficulties.
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Why are the seeds of this species difficult? The seeds may have physiological dormancy, which can be overcome by mimicking the seasonal patterns of the species' native habitat.
Why are the seeds of this species difficult? The seeds may have morphological dormancy, which would have to be overcome before they will germinate.
We were not able to find information on all of the species identified as having 'difficult' seeds. If you have any information on the handling, storage or germination of these species, please fill in the form to share information with us and help to overcome these difficulties.
Why are the seeds of this species difficult? The seeds may have physical dormancy, which can be overcome by scarifying the seed coat to allow water uptake and encourage germination.