Knowledgebase
Is my Juniper a male or female? #856340
Asked December 13, 2023, 2:32 PM EST
Hennepin County Minnesota
Expert Response
Thanks for the question.
The common juniper (Juniperus communis) typically has separate male and female plants. In botanical parlance, common juniper is said to be dioecious. In order to identify male and female plants, you need to look at the reproductive structures.
Female juniper plants produce seed cones, which are often referred to as "berry-like cones" because they resemble small, fleshy berries. These cones usually take about a year to mature and are typically green when young, turning a bluish-black color as they ripen. In one of your pictures, blue berry-like structures are seen. This particular picture, then, is showing a female plant.
On the other hand, male juniper plants produce pollen cones, which are smaller and less conspicuous than the female cones. From these cones pollen is released into the air and pollinates seed cones on female plants.
Here is further information on these and related points:
https://www.minnesotawildflowers.info/shrub/common-juniper
https://www.first-nature.com/trees/juniperus-communis.php
Thanks for using our forum. Please get back to us with any further, related questions.
Thanks for your response. I understand your latest question, but since it was not part of what I initially received from you, I did not address this point. Your question about whether this is a juniper or a cedar was directed to a different master gardener. I have contacted this second master gardener about my answer to you. That master gardener will be responding to you regarding the actual identity of your plant.
Thanks again for using our forum.
Please keep us apprised about any issues that may subsequently arise. Thanks!