Zucchini can produce well if sewn directly in the ground. However, in ares where summers are very short (or tend to be cloudy/foggy), starting indoors can sometimes prove beneficial.
Start indoors in peat pots as Zucchini roots are sensitive to being disturbed when transplanted. Zucchini will take off so they need a lot of light from the start. A south facing window is ideal. However, good powerful grow lights work well also.
Outdoor Site & Soil Preparation:
Squash are voracious eaters. Therefore, rich soil is required. If your soil is not rich, try raking in a little slow release granular fertilizer a week before planting or transplanting. In most cases you won't need to re fertilize that season.
Recommended PH Range:
6.0 - 7.5
Recommended Spacing in Beds:
45 - 60cm (18 - 24")
Nasturtiums, Corn, Radishes, Beans (legumes in general).
Growing in Containers:
Zucchini grow well in containers…provided they are big. We use a minimum of 5 gallon pots for this. The pot should be filled with a good quality potting mix and fertilized every 2 weeks or so with a good water soluble fertilizer. Because pots are high off the ground, it is beneficial to train your Zucchini to grow up a stake or a fence post.