Passion Flower and the Bees

I’ve never grown a passion flower plant before but at the end of the season, a local gardening center had the passion flower “Incense” at a great price so I decided to give it a try.

Passion Flower Incense

Passion Flower Incense

The plant didn’t do much for the first month; it just sat there in the garden, working to get established.

But now it’s starting to grow and is becoming filled with flowers.

Yesterday I noticed something about the way a bee interacts with a passion flower. It’s clear that the bee wants to get to the nectar and the nectar appears to be found in the center of the flower. But in making its way to the center, something interesting happens.

The male reproductive organ of the flower – the stamen – has two parts: the filament and the anther. The filament is simply the stalk that supports the anther. The anther is what produces pollen.

Passion flowers have five anthers and each of them open facing down. That means that when the bee crawls into the center of the flower, its back gets coated with pollen from the anthers.

ps5_edited-1

The female part of the flower is the pistil and the end of the pistil, the stigma, is where the pollen needs to land in order for the flower to be fertilized. The way the passion flower is set up makes it hard for the pollen to get to the stigma; that is, unless a bee is present.

After digging around in the center of the flower, the bee is coated in pollen. When the bee takes flight or lands on another passion flower, there’s a good chance that it might bump into one of the three stigmas of the flower with its pollen covered body. And when it does, fertilization takes place.

ps4

I’m liking the passion flower plant. The flowers are interesting and seeing the bees pollination them is even more interesting!

ps6

ps3

ps2

Advertisements

4 responses to “Passion Flower and the Bees

  1. How wonderful! I first saw Passion flower vines as a child growing up in Tucson. Now I’m in an apartment in LA, but will find out if I can grow it in a pot. I appreciate your wonderful photos of the flowers! Terrific. Thanks.

    • Thanks so much. I’m growing this one in PA but I know a lot of people grow them in pots or as houseplants. As long as you have a sunny window or deck, you should be able to do it!

  2. Very interesting and nice pictures!!!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s