Spring Planting Guide & Calendar for Boise Area

Spring Planting Guide & Calendar for Boise Area

Spring – Time to Get Growing

Wondering when the best time to start planting your vegetable garden in Nampa, Boise, Caldwell is? Following this spring planting calendar for a successful growing season.

Garden Preparation:

You’ll need to work the soil, add some organic matter and Soil Activator to encourage an ideal growing medium.  For any root crops, such as potatoes or carrots, add some bone meal.  Now, let’s discuss appropriate planting time for the vegetables in the Treasure Valley.

Crop (Starting From)Average Planting DatePlanting Depth (Inches)Spacing (Inches)
Beans (seed)May 101-1.53-4
Beets (seed)March 2512-3
Broccoli (plant)March 1514-24
Cabbage (seed)March 15.514-24
Cantaloupe (seed)May 5172
Carrots (seed)April 5.52-3
Cauliflower (plant)March 1514-24
Corn (seed)April 30210
Cucumber (seed)May 15.572
Eggplant (seed)May 10.536
Lettuce, Head (seed)March 15.2512
Lettuce, Leaf (seed)March 5.256
Onion (set or plant)March 151-22-3
Peas (seed)March 152-31
Pepper (plant)May 1018-24
Potato (seed)March 20410-12
Radish (seed)March 15.51
Spinach (seed)March 5.53-4
Squash (seed)May 51-248
Tomato (plant)May 1018-36
Turnip (seed)March 15.25-.52-3
Watermelon (seed)May 51-296

*Special garden tip*

For those who hate to pull endless weeds in the garden, putting weed barrier down prior to planting can greatly reduce the weeding back strain.

Once plants are in, carefully watch the weather for dangerous temperatures.  Frost can be detrimental to the tender seedlings.  To avoid the possibility of a plant it is a good idea to have “hot caps” or “walls of water” on hand for nighttime protection.  Plastic is not an advisable frost protector because the cold will easily transfer through the plastic and potentially frost the plant.

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