Hand-Pollinating Pumpkins

I learned how to hand-pollinate pumpkins!

The bees have been increasing but we’re not the sort to leave anything to chance, and when you’re looking for a reason to play in the dirt, you take what you can get. Even if it means feeling a bit pervy.

Justin has been reading from Seed to Seed: Seed Saving and Growing Techniques for Vegetable Gardeners about the pollination of pumpkins. It was something he had hoped to do but it seems our pumpkin flowers only open in the morning when he was at work. I’m not sure if this is normal or simply a result of our heat. This left the job to me.

First, Justin showed me the male flowers. Not sure how to tell a male flower from a female flower? If the pumpkin flower is open, its maleness is pretty obvious. That thing sticking out? It’s called a stamen. Or you can pull a Tara and refer to it as its “thingy”.

stamen

If the pumpkin flower is closed, look at the stem directly under the flower. A male flower will be only a stem, while a female flower has what will become the pumpkin, its size depending on how soon its flower will open. This is the size of the pumpkin the day it opened, but we first saw it when it was the size of a pea:

pumpkin baby bump

When the female flower opens, it’s difference is easy to tell. Instead of a single stamen, it has a multi-segmented stigma. Or what I lovingly refer to as it’s “girly stuff”.

stigma

Hand-pollination was simple, albeit embarrassing. After asking permission and apologizing profusely, I rubbed a Qtip around the males stamen, picking up the pollen. (You can also use your finger, but I really felt that was taking it too far.) I felt more than a little dirty inserting that Q-tip into the females stigma. We both blushed, had a moment, moved on.

Within the day, the flower had closed up and began drying and it’s baby bump had already begun growing. Five days later, it’s grown exponentially (proof of my prowess, perhaps?):

5 days after hand-pollination

This is our Howden pumpkin, BTW, planted for jack ‘o lanterns this Halloween. Who knew they’d also offer so much s*x education? ;) Life learning at its best!

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For more great info on growing from and saving seeds, as well as how to pollinate, harvest and more, I highly recommend the following book. It is jammed packed with information from cover to cover; nothing superfluous or uninteresting. It even covers some of the history of the plant breeds and crosses. It’s one of our favorite and most used gardening books.

Reflections

  1. Angela says:

    Great post! This makes me want to go pollinate some pumpkins!

  2. Kristin says:

    I hand pollinate out zuccini squash. Glad to know Im not the only that feels a bit pervy ha ha.

  3. Carol says:

    Oh my gosh, Tara! You can write! I so enjoyed reading this post. And your garden, BEAUTIFUL!

  4. Jenell says:

    You’re a fertility goddess, Tara!

  5. Yoga Witch says:

    Thanks for this education. You learn something new everyday, I tell ya! I’m excited to go look at my pumpkin plant tomorrow!

  6. Amanda says:

    ROFLOL. You are too funny!!! I haven’t checked out our pumpkin plants’, um… fertility, yet. Maybe I should go get myself an education. ;)

  7. Barbara says:

    thanks for the reminder…all my squash do better with hand-pollination, but it hadn’t quite made it on my radar this year. and I think the girls will LOVE doing it with me.

  8. Wendy says:

    I’ve been doing the same thing because there seem to be no bees around here. Last year, I only got two zucchini so I’m not leaving anything to chance. I showed my kids how to do it, too.

  9. leon says:

    What excellent info.My two boys have been given a pumpkin plant to enter a competition at halloween for the largest grown.we were told we would probably have to self pollinate and had no idea and her it is.Gert cheers

  10. sam says:

    hi all ,,, i’m having a bit of a problem with hand Pollinating my pumkins as i only have 1 flower open on both plant’s and it a female flower but no male flowers are open ,,,

    so what do i do ?

    • Sam: Usually the male flowers open before the female flowers – my theory is to begin drawing beneficial insects before they are crucially needed. However, if you are short on flowers it could be a nitrogen problem – you can test the soil to find out. Organic fertilizers could be applied as a side dressing if that is the case (cottonseed meal, bone meal, urea – purchased or from your own urine, believe it or not – manure or guano all help). Compost is always good to add, too. It might not help in time before your female flower closes, though. But if your plant is healthy and you amend the soil now to support its continued growth you should continue to get flowers. I suppose if the situation is really desperate you could go a local nursery or neighbor with a Qtip to take advantage of their male flowers (making sure they are of the same variety of course). But I’d stick with amending the soil and allowing the plant to continue producing more flowers.

  11. sam says:

    thankyou for your reply ,,,i thought it was a bit strange that the female flower opened before any of the male flowers on both plants ! i just hope that a male flower opens tomorrow before the female flower die’s as that is the only female flower on the 2 plants so far but both plants are still only young and 100% healthy ,,,

    anyway ill let you know how i get on with them thanks again sam

  12. DJK says:

    I hand pollinated a few of our pumpkins last night. But, I cut off the male flower at the base of the stem so I had a handle. I removed the flower from around the stamen and them kindly and gently spread the female flower and inserted the stamen into the stigma. I gave it some twisties and moved it all around. We’ll see how well it works. I mean….it works in the movies. ;)

  13. Stacy says:

    My pumpkins started making baby (females) first this year, but I live in a rather cool climate, and we get started a little later in the season than most gardeners. With my Zucchinis…Males seem to flower first, but with the pumpkins, the females started first..the initial babies withering, dropping, or me culling them. Now, however, the males are ruling the planet, and the females are being nicely pollinated by bees, although I do hand polinate as well…(never felt “pervy” about it until today tho..) And the females seem to be taking off nicely, with many babies on each vine, (time to start pinching???) I was very surprised at the lily-like scent of the male blossoms…and started searching “pumpkin blossom” recipes yesterday! Take heart, it was hard in the beginning watching the baby pumpkins waste away, but it was worth it! Now I have a full patch!!! Any advice on how many pumpkins to leave, and how to discourage new vine growth would be appreciated!!

  14. Daffodil says:

    I love my growing Pumpkin and Zucchini! I have many, many pumpkins, with three mounds and four pumpkins on each mound. However, I have been searching to pollinate them, but there are absolutely NO female flowers. I find no bumps or anything from my twelve pumpkin plants…
    My zucchini have the exact same problem with many shoots, around three plants on three mounds. I keep looking each day, to only find the blooming flowers…to all be male. Just so you know, they were all fertilized organically and had manure put in there…I’m confused?

  15. Rose says:

    Thanks so much, this is my first year with pumpkins and I have had so many questions, this was the first entertaining and comprehensive answer to hand pollination and identifying flowers.

  16. kathy says:

    So, once you pollinate one pumpkin, how many others need the same treatment? I guess I thought only one pumpkin had to be hand pollinated, but that doesn’t make sense, sounds like they all need the same treatment, right?

  17. Booboo33062 says:

    I have several fruit from my pumpkin plants that fall off or turn dark when the fruit is about the size of a small plum. I read it was probably because it wasn’t pollinated. I have decided to do it myself so I went out with a q-tip. The flowers had partially closed and I wiped the male flower and there was no visible pollen. Can you actually see the pollen? Should I do it while the flowers are first opened?

    • It could also be a nitrogen issue. Adding organic compost or manure will help in that case. It is a good idea to do them as soon as possible after the flowers open. I honestly can’t remember how much pollen I saw on mine (it’s been awhile since I’ve hand-pollinated!).

  18. Jim Ashby says:

    Hello, Thanks for the info. My questions: Do male and female pumpkins grow on the vines that spread out. I thought I read that female pumpkins grow close to the plant. I also read that if you do pollinate a pumpkin not to leave the flower, cover it up so that bees cannot get in the female part.

    The other day I went to my patch and found a small pumpkin growing on a stem, when I went up the next day there was a bee in the flower, I am hoping that the bees are in the patch.

    Thanks

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