This year one of our students decided to plant and grow her own pumpkin for our school annual pumpkin competition.
In this picture you can see the process she followed:

If you want to have a pumpkin for next 31st October, just follow these steps:
1. Find out when to plant pumpkins in your region.
2. Choose a planting spot and prepare the soil.
3. Choose pumpkin seeds or a plant.
4. Plant your seeds in “hills” or plant the pumpkin plant.
5. Cover the planted seeds or pumpkin plant with compost.
6. Water the pumpkin plant.
7. Fertilize the pumpkin plant.
8. Control weeds and pests.
9. Check to see if the pumpkin is ready.
10. Harvest the pumpkin.
11. Cut the pumpkins’ stems.
12. Carve a jack-o-lantern.
For further information click here:
https://www.wikihow.com/Grow-a-Pumpkin