Bee pollinated plants are your best bet for reducing allergens in your yard.
These are just some examples of bee-pollinated, allergen-friendly plants, and with selective breeding by knowledgeable cultivators, I'm sure we will see more allergy friendly plants in the future. After reviewing the above list, I’m sure a few of you are thinking, but how do we know if a tree is male or female?
For plants that are dioecious (either male or female) it is fairly simple. Take a juniper for example - if it has berries on it, it’s a female. If the tree turns from green to slightly brown several times a year and releases plumes of yellow stuff, it’s a male.