When to plant Arugula in Hawaii County, Hawaii, United States

Arugula can be planted after January 01, when air temperature is consistently in a range between 20°F and 75°F and soil temperature is above 45°F.

Growing Arugula in Hawaii County

Arugula needs on average between 21 and 40 days to mature and produce harvest.

Hawaii County has 2 distinct seasons suitable for growing Arugula

• January 01 to May 19

  Arugula needs on average between 21 and 40 days to mature and produce harvest. With 139 suitable for growht, you can expect good harvest without too much effort if all planting activities are done in timely manner.

• November 05 to December 31

  Arugula needs on average between 21 and 40 days to mature and produce harvest. With 57 suitable for growht, you can expect good harvest without too much effort if all planting activities are done in timely manner.

Planting Arugula in Hawaii County before January 01 without any additional protection is not advised because cold streaks can damage or kill off young plant.

Growing season extention

In order to maximize chances for a good harvest of Arugula in Hawaii 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 21 days on average for Arugula to sprout, and grow big enough to be ready for transplanting.

Hawaii County has 3 distinct seasons for growing Arugula

• In order to get plants ready for January 01 seeds should be started indoors bwetween and April 09

  Seeds started after April 09 are not likely to mature and produce harvest.

  Arugula needs on average between 21 and 40 days to mature and produce harvest. With 139 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 May 21 seeds should be started indoors bwetween April 30 and May 10

  Seeds started after May 10 are not likely to mature and produce harvest.

  This Arugula growing season in Hawaii County is quite short, with only 11 days suitable for growth so it is really important to time your planting activities, and choose varieties with shorter time to harvest requirements.

• In order to get plants ready for November 05 seeds should be started indoors bwetween October 15 and November 21

  Seeds started after November 21 are not likely to mature and produce harvest.

  Arugula needs on average between 21 and 40 days to mature and produce harvest. With 57 suitable for growth, you can expect good harvest without too much effort if all planting activities are done in timely manner.

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 75°F, which is in top of tolerable range for Arugula, consider using additional shading to prevent heat shock.

Table with days suitable to grow vegetables in Hawaii County, Hawaii