When to plant Watermelon in Johnson County, Texas, United States

Watermelon can be planted after April 26, when air temperature is consistently in a range between 55°F and 100°F and soil temperature is above 45°F.

Growing Watermelon in Johnson County

Johnson County has on average 106 days, suitable for growing Watermelon . Watermelon needs on average between 65 and 100 days to mature and produce harvest. With 106 days suitable for growing, you can expect good harvest without too much effort if all planting activities are done in timely manner.

Watermelon seeds can be planted between April 26 and June 05. Planting before April 26 without any additional protection is not advised because cold streaks can damage or kill off young plant. When planting after June 05, Watermelon will not have enough time to mature and produce harvest.

Growing season extention

In order to maximize chances for a good harvest of Watermelon in Johnson County, some extra steps can be taken to extend growing season.

Start seeds indoors

When starting seeds indoors, it is possible to guarantee best possible conditions for young seedlings. Consistent temperature range, adequate watering and ample light (natural, supplemented with artifitial grow lights) will ensure you have strong and healthy seedlings just in time for transplanting into soil.

It takes 49 days on average for Watermelon to sprout, and grow big enough to be ready for transplanting.

Johnson County has 2 distinct seasons for growing Watermelon

• In order to get plants ready for April 26 seeds should be started indoors bwetween March 08 and May 01

  Seeds started after May 01 are not likely to mature and produce harvest.

  Watermelon needs on average between 65 and 100 days to mature and produce harvest. With 106 suitable for growth, you can expect good harvest without too much effort if all planting activities are done in timely manner.

• In order to get plants ready for August 18 seeds should be started indoors bwetween June 30 and July 08

  Seeds started after July 08 are not likely to mature and produce harvest.

  This Watermelon growing season in Johnson County is quite short, with only 60 days suitable for growth so it is really important to time your planting activities, and choose varieties with shorter time to harvest requirements.

Use a cold frame

When using a cold frame in a beggining of growing season You can protect young plants from possible temperature drops, this way growing season can start up to 2 weeks earlier.

Use an additional shading

On days, when air temperatures are expected to raise above 100°F, which is in top of tolerable range for Watermelon , consider using additional shading to prevent heat shock.

Table with days suitable to grow vegetables in Johnson County, Texas