Culture. Basil is easily grown from seed or from tip cuttings of overwintered plants. Because basil is sensitive to cold temperatures, seeds germinate and grow best when the media temperature is at least 70 degrees. Seeds will germinate in about 5-7 days.asil is easily grown from seed or from tip cuttings of overwintered plants. Because basil is sensitive to cold temperatures, seeds germinate and grow best when the media temperature is at least 70 degrees.
The hottest May day in Dallas for the past 57 years was 103 degrees Fahrenheit, registered on May 30, 1985, while the mean high temperature is 83. The lowest documented temperature for Dallas for the past 57 years in May was 36 measured on May 1, 1908, while the standard low daily temperature for the month is 63.
Texas Weather > Roanoke Weather. Roanoke, TX climate is hot during summer when temperatures tend to be in the 80's and cold during winter when temperatures tend to be in the 40's. The warmest month of the year is July with an average maximum temperature of 95.50 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 30.80 degrees Fahrenheit.