The Internet Shrine and Library for Pumpkins
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Pumpkin Seed Germination
Mother Nature has her own way of germinating seed. In the field, she provides warmth and energy from the sun, moisture from the clouds, and nutrients in the soil. Mother Nature also has a way of disappointing us from time to time, by either not bringing one of the essential ingredients, or she sends too much all at once.
Germination of your pumpkin seeds is a very important first step to a successful, perhaps record setting season. You can directly sow pumpkin seed into the garden in most areas. You need about 100 - 120 days for most varieties of pumpkins. Giant pumpkins and other giant varieties require 130 to 150 days. People with short growing seasons, or growers pursuing the big one, need to get a jump start on the season, by planting indoors.
If you are growing Atlantic Giants, Big Macs, Prize Winner Hybirds, or other giant pumpkins, the seed coat is quite hard and thick. It makes germination a little more tricky. There are some simple steps included below that you can perform that will help the germination process.
Following the steps below will maximize the likelihood of successful germination. Then you are on your way to growing big, monster pumpkins and cute little wee ones too!
The essentials for good pumpkin seed germination are:
Here are my recommended step by step instructions to maximize seed germination:
TIP: Coating the seeds with a fungicide offers protection against mold and fungus growth.
Use this heated germination mat and seed starting tray to speed the germination of your plants.
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Seedling Care and Nurturing:
Upon emerging from the soil, pumpkins growers breath a big sigh of relief. We can close our eyes and almost see a thousand pound fruit nestled amongst lush, green pumpkin leaves. As we open our eyes, we immediately begin a new set of worries over nurturing the newborn indoors.
Let there be light- - and plenty of it: The newborn pumpkin seedling immediately needs light, as much and as direct as possible. Placing it by a window with a southern exposure is the first step. This alone may not prove to be enough for the seedling to grow healthy and strong. First, the sun is not up as long in the spring as it is in the summer. Second, there are many rainy spring days with little or no direct sun. You should acquire an artificial grow light, or use florescent lighting to supplement the available sunlight. Place the pumpkins 6 to 8 inches below the light on cloudy days, and at night. The seedling will benefit from as much light as possible.
Let There be Water- - in just the right amount: Provide water to the pumpkin every couple of days. Do not soak the soil each day. Overly wet soil is one of the basic ingredients for damping off disease. Let the soil dry out a little on the top first, then water thoroughly.
Feed me, feed me: The seedling does not need a lot of extra nutrients in the first few days of it's life. Your seed starting mix should have plenty of nutrients. The seed also has some stored inside of it. After several days, add a little liquid fertilizer to the water. You do not need to give it full strength.
When the roots are coming out the bottom of the pot, it is time to plant your seedling in the soil, weather permitting. Hopefully, you have timed this to the last frost, or have prepared a protective cover. If not, keep the bottom of the tray moist, or put some extra soil in the bottom of the tray, or transplant to a larger pot.
Damping Off Disease:
Those of us who have grown seedling indoors for any number of years, know what "Damping Off" disease is. This is a white mold that forms on the top of the soil. Damping Off disease flourishes in cold, wet, damp weather, along with little sunshine. It quickly spreads across the soil and wilts the seedling. Take it's habitat away, and the disease can not survive. Pumpkins on the other hand, love just the opposite conditions. So, the more you make conditions ideal for pumpkins, the more likely you will avoid this problem.
If you do experience problems, do not give up hope. Here are some things you can do to minimize or eliminate disease problems:
The day you plant your seedlings is one of the more exciting and anxious days. Often we start the seedling too early and it is growing so big that it needs to get into the ground. Or, perhaps it is not getting enough sunshine, or you want to get that jump start on the season. Whatever the reason, it is important either to wait until the chance of frost is over, or be prepared to spend time protecting the young seedling.
Note: If you direct sow seeds into the soil, you can plant earlier than seedlings. The seeds will need warm soil to germinate. While you can successfully grow giant pumpkins in most areas by direct seeding, you have taken a couple weeks off the growing season. If you are growing anything other than the giant pumpkin varieties, the season is amply long enough in most areas to direct sow your seeds.
I know, you plan to do what the rest of us do each year.....beat the season and plant early. After all, maybe there will be no more frost. If you do so, be prepared to over up on cold or frosty nights.
Here are some simple ideas and tips to get your growing season off to a good start:
Early Season Care:
Assuming you are a real pumpkin fanatic like me, you want to nurture your young prize producer in it's toddler period. The most important thing to guard against is cold weather and frost. Frost will kill the plant and cold weather will slow it's growth. Most people recognize the former, but are not as aware of the latter.
Build or buy a cold frame or use a simple hotcap to cover the plant on cold nights. It does not need to be large or elaborate as the plant is small, and you just need to maximize the overnight temperatures. A little scrap wood and plastic sheeting is all you need. Cover the plants on cool nights, even if there is no frost warning. Make sure to uncover them in the morning before or very shortly after the sun reaches them. If you forget and leave it on during a warm, sunny day, you will have some replanting to do when you get home from work.
As you surf the Internet you will find others who have gone to the extreme of providing small space heaters inside a hotcap or cold frame. These are people who are even more rabid fanatics than this writer. If you are in a northern climate with late springs(especially in Canada), you may need to consider this in order to provide the plant a long enough season to produce a monster pumpkin.
Now is the time to begin preparing to Chart your Pumpkin's Growth.
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