How Did Your Pumpkin(s) Grow?

Oct 8, 2020

How Did Your Pumpkin(s) Grow?

Oct 8, 2020

Feat2Pumpkins01
At the first of summer, you thought it a good idea to grow a pumpkin plant to give the kids a focus during the upcoming “warm” weather while being confined to home with COVID19 stay-at-home restrictions in place. You may have even considered growing one of those “GIANT” breeds which can be turned into a carriage for Cinderella or may take flight on Halloween as the “Great Pumpkin”- rising into the air to distribute good will to all the faithful. I imagine you have one or more of the orange-colored orbs ready to be picked and carved into a Jack-o-Lantern or used as decoration for the season and then turned into pie when Thanksgiving Day arrives! The glory of success!

However, some of us are hurting – failing to produce a single fruit on our vine (or even worse, we didn't even get the vine to take off). Where did we do wrong? What were we thinking? Let's revisit the steps we need to accomplish to make it happen next year. No time like the present since it is fresh in our minds.

Feat2Pumpkins02
Let's review. Did you start your plants from seed or purchase a started plant? Seeds may be temperamental, but they sprout as the ground warms and normally take off once they feel the warm sun on their cotyledons. Some started plants may stay in their pot too long - either in getting to market or getting into the ground - and the plant is put in a state of non-growth. Roots having reached the boundaries of the pot stop growing and need a shot of nutritious soil to put forth another growth spurt. If the plant already has flowers appearing on the reduced vine it may act more like a “bonsai” and stay in a diminished size. Of course, we gardeners figure water cures all only to drown our pumpkin just like our sorrow.

Okay, so you didn't face that issue and your plant took off like a banshee. Great! Unless you didn't plan for the growth a pumpkin vine will expend to make fruit. Each plant may need 100 square feet to capture the available sunlight and convert it into the goodness we call pumpkin. And the more fruit on each vine, the more vine needed to produce a pumpkin of Jack-o-Lantern quality and size.

Feat2Pumpkins03
Plenty of vine but no fruit, or at the most a lot of tiny fruit which didn't survive but turned brown and fell of the vine or turned to mush. The process of pollination was compromised. By now I hope you realize that pumpkins (I believe all cucurbits) have unisexual flowers. Male flowers show up first as the vine grows, then the female flowers arrive. By this time, pollinators have been working the male flowers and will carry pollen to the female flowers. If this fails to happen, you may be forced to assist Mother Nature and pollinate the female flower with a small paint brush swirled through a couple of male flowers to secure pollen and transfer to the female flower with a dobbing action. Be gentle; you don't want to damage the receptor.

Other things can happen during the summer while the pumpkin plant and fruit grow in size: sizzling hot days can lead to both over watering and under watering (both of which can lead to the demise of the plant), invertebrate pests usually arrive late in the season or when the plant has suffered too much stress, vertebrate pests may eat through the roots or pop up right under the fruit (both damages will be unforgiving to the pumpkin). And while they thrive in full sun, it is important to have plenty of air flow so they may maintain their “cool” as they move nutrients through the plant and molecularly incorporate them into future pie-making

Feat2Pumpkins04
fruit. Lacking this, they may just dry up and turn to mulch!

If you have made it past all these challenges, you should have at least one winner of a pumpkin plant with plenty of fruit to do with as you see fit. This might be where you think back and say “Why didn't I scribe my grandchild's name into the fruit when it was small so I could impress the little one with a personalized Jack-o-Lantern. (The scar created grows with the plant and is always a winner for the children.) Truth be known, pumpkins can be kept in a cool dry area for months and used as you need for breads, butters, jams, pies, and many other things to consume, in addition to their use as fall decoration.

One last critical concern – when harvesting the fruit, leave 3” to 4” of the stem on the fruit, place the fruit on its side to let the bottom (yellow spot) be in the sun for a few days to orange-up, and take special care not to poke the fruit with anything sharp! This last issue will render the fruit “consumable,” meaning that if you don't consume it right then (can it, cook it, freeze it, or soup it) Mother Nature will take it back one way or another. Don't let that happen!