Answer: Pumpkin vines usually take up a very large space in the garden, and grow fast to cover a lot of ground. They need good fertility and ample water as well as full sun over a long season to do their best. The larger and healthier the vine, the better (and bigger) the pumpkins will grow. The foliage will also be a lot larger than it is now. You have a good chance of getting a vegetable, but whether or not it will resemble the parent is open to question depending on how the parent was pollinated. If you want to keep this vine, remove the competing sprouts and enjoy the experiment. Otherwise, you might consider selecting a good spot for a pumpkin plant and planting some purchased seed.
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