How Long Do Cucumbers Take To Grow From Seed?

How Long Do Cucumbers Take To Grow From Seed?

If you’re going to plant cucumbers this year, you’re simply thinking how long it will take for them to germinate, or sprout. Even if you’ve grown cucumbers before, you might want to look into ways to speed up cucumber germination.

So, how long does it take for cucumber seeds to germinate? Cucumber seeds germinate in 3 to 13 days. Cucumber seeds germinate more quickly when the soil temperature, humidity, and air movement are just right. To help get required growing conditions, some gardeners usually grow cucumber seeds indoors before transplanting to the outdoors.

Place the cucumber seeds in a moisture dome (bought or handmade) and keep the soil at 85 to 95 degrees Fahrenheit to expedite the sprouting (29.4 to 35 degrees Celsius). Several variables influence how rapidly cucumber plants grow after germination.

We’ll begin by examining how germination times change with temperature in this article. Then we’ll talk about how to provide the best growing conditions for your cucumber seeds. Let us get this discussion started.

How Long Do Cucumbers Take To Grow From Seed?

It takes 3 to 13 days for cucumber seeds to sprout. The soil temperature is one of the most significant influences on cucumber germination time.

Soil Temperature

Cucumber seeds grow about 3 to 10 days under optimal conditions, according to Cornell University and Michigan State University Extension. However, at the low end of the temperature range, it may take a bit longer (around 60 degrees Fahrenheit, or 15.6 degrees Celsius).

If the soil temperature is below 60 degrees Fahrenheit (15.6 degrees Celsius), for instance, you may not see any germination at all. Cucumber seeds are likely to sprout in 13 days (near to 2 weeks) at such poor soil temperatures if you do so.

There will be a low reproductive rate as well (the percentage of planted cucumber seeds that sprout).

Cucumber seeds germinate about 6 to 7 days (approximately a week) under relatively warm soil temperatures in the 60s Fahrenheit (15.6 to 20.6 degrees Celsius). In this instance, you should see higher germination rates.

Cucumber germination takes only 4 to 5 days at soil temperatures ranging from 70 to 80 degrees Fahrenheit (21.1 to 26.7 degrees Celsius). In this circumstance, the rate of germination will be substantially higher.

Cucumber seeds can grow for as few as three days in soil temperatures ranging from 85 to 95 degrees Fahrenheit (29.4 to 35 degrees Celsius).

Cucumbers: How and Why To Begin Growing Them Early

Cucumber seeds should be planted immediately into the garden in the spring, in most cases. Seeds should be planted whenever the soil temperature has reached at least 65 degrees Fahrenheit (18.3 degrees Celsius).

It can be challenging to transplant cucumber seedlings into the garden without upsetting the roots and causing harm to the plant if you begin cucumber seeds indoors. In a chilly climate with a short growing season, nevertheless, it may be worth taking the risk.

There are a few options for keeping cucumber seeds warm if you decide to grow them inside. Somewhere under the seed container, you can put a heat mat. Another option is to place the seed container on top of your refrigerator (the refrigerator is chilly inside because it emits heat outside!)

There are various techniques to warm up the soil and make your cucumber plants healthy in the early days if you still wish to put cucumber seeds straight in the garden.

To begin, cover the soil with black or clear plastic and allow the sun to warm the air and soil below. This allows you to start planting cucumber seeds sooner than usual.

You can also cover each cucumber seed with a cloche. In the garden, a cloche is a protective covering (typically made of plastic) that shields seeds or seedlings from cold, bugs, wind, and other external hazards.

You may make a cloche out of empty transparent plastic milk or water jug by cutting out the bottom and placing the entire thing over the seed. The cloche will eventually be outgrown by the plant, which is great. By that time, the plant will have gotten big enough and the weather will have warmed up enough that it will no longer require protection.

A cloche will serve to capture the heat of the sun in the air, and part of it will also be trapped in the soil. The extra heat will hasten the germination of cucumber seeds.


I hope you find this article helpful. I would like to hear from you. So, let me know if you have any questions about how it takes cucumber to germinate and grow.