Cucumber Plant Minimum Temperature

Vegetable seeds and seedlings require minimum soil temperatures to germinate and grow. Seed costs are high and growers may prefer to purchase plants from a commercial nursery costing about 50 to 85 cents each.

How To Grow Cucumbers Gardener S Path

Cucumbers are a warm weather vegetable and they will not grow well if subjected to those kind of overnight temperatures.

Cucumber plant minimum temperature. A temperature of 15C 60F is necessary for the ordinary varieties and 21C 70F for the All Female types. The cucumber seedling shown above is exactly two weeks after sowing the seeds indoors. A temperature of 39 F will not kill your cucumber plants but if you have seeds planted and the soil temperature is in that range they may not germinate.

You can begin to grow cucumbers as soon as the soil is consistently above 70F21C which is close to the minimum temperature for germination. The seedlings will sprout above the surface after about 8 days and at this stage place the pots in a light position with a minimum temperature of 15C 60F. Daytime air temperatures should be maintained between 75 and 80 F but should not exceed 85 to 90 F.

Cucumbers are cold-sensitive plants so the temperature after planting out should be no lower than 55 60F. Most of the time the sudden fluctuation in temperature rather than cold air causes wilting and dying of cucumber plants in a greenhouse. Cucumber plants wont grow well in heavy soil.

The ideal or optimal soil temperature for planting and growing most vegetables is 65 to 75F. Michigan State University Extension reports that the seeds germinate in three to 10 days in soil temperatures of 60 to 105 degrees. Cucumber plants thrive in warm moist soil with a pH of around six to 65.

Ideally soil temperature should be over 68 degrees F. When growing cucumbers start seeds indoors under lights 3-4 weeks before your last frost date or buy seedlings from your local nursery. Try to maintain a minimum temperature of 15C Keep the compost moist but not wet Keep them out of direct sunlight cucumber seedlings can be prone to scorching Try to avoid disturbing the roots when you transplant them.

Cucumber seed should be sown singly either in 75cm 3in pots or spaced 25cm 1in apart in boxes or pans. The optimum temperature for germination of cucumber seed is 27 C day and night. 3-4 weeks after your last expected frost date is usually a suitable time to plant seeds outdoors.

The optimum daily average air temperature is 15-24C 65-75F. After germination optimal outdoor growing temperatures are between 65 and 75 degrees Fahrenheit -- ideally above 60 degrees Fahrenheit at night. Soil temperature triggers not only seed germination but is an important factor in soil chemistry.

Recommended air temperatures for cucumber cropping A minimum root temperature of 19C is required but 22-23C is preferable. Set the plants 90cm 3ft apart along the bed and thoroughly firm and water them in afterwards. A few things to keep in mind.

Over 70 degrees F is better for germination if you are growing from seed. Temperatures during the night should not drop below 65 F. The warmer the soil the faster the seeds sprout.

Low temperatures give slow and uneven germination and plants of poor vigour. Optimum temperatures for growth are at night about 18C and during the day about 28C accompanied by high light intensity. Bottom heating will be required for good germination in winter.

In either case dont set them out until daytime temperatures are in the 70s 21-27 C and nighttime lows in the 60s 15-21 C. Seeds and seedlings require optimal soil temperatures to thrive. Ideally the bed temperature should be between 18-21C65-70F and the cucumbers planted with 1 to 2cm ½ to 1in of the rootball protruding above the surface in order to encourage water to drain away from the stem base.

Cucumbers are generally speaking a high-light crop. Avoid placing the seedlings in direct sunshine because this may well damage their delicate foliage. At approximately 90F32C cucumbers will.

Cucumber seeds germinate best in a warm evenly moist location.

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