About Dark Green Zucchini Squash: History records that Columbus carried this then unfamiliar member of the cucumber family back to Europe after his first voyage. In Italy it acquired the name "zucchino," meaning a small squash; the French name for a zucchini, which the English later adopted, is "courgette." Italian immigrants later brought the zucchini back to the United States, where it became the most popular and commonly available variety of summer squash.
Dark Green Zucchini Squash Germination: Gardeners with short growing seasons may want to start their squash seeds indoors a month before the last expected frost. Since squashes do not take well to transplanting, peat pots are the best option. Plant two seeds per pot, later clipping off the weaker seedling. Harden the seedlings by exposing them to the weather for several hours at a time during the week before transplanting. About a week after the last frost or when the soil temperature reaches an average of 65 degrees F, plant the seedlings in very rich soil 8-10' apart in rows 10-12' apart. Another option is to plant the seedlings in hills of two, 8-10' apart. To direct sow, plant the seeds when the soil temperature reaches at least 70 degrees F. Plant them 1/2" deep, 3-4' apart and thin to 8-10' apart. For companion planting benefits, plant squashes along with corn but avoid planting them with potatoes.
Growing Dark Green Zucchini Squash Seeds: Since squash seedlings do not tolerate frost, provide protective coverings if the temperature drops below 65 degrees F. Keep the soil moist at all times, but avoid getting the leaves wet as this can cause diseases such as rot or mildew. When the vines begin to develop, a layer of mulch will help conserve moisture and control weeds; mulch also will keep the squashes clean and protect them from too much soil contact.
Harvesting Dark Green Zucchini Squash: Zucchini generally taste best when harvested when they reach a length of 4-5". When the plant begins to produce mature zucchini, they should be picked every day or two. Zucchini keep well in the refrigerator for about two weeks and freeze well.
Saving Dark Green Zucchini Squash Seeds: By the time the squash reaches its mature size, the seeds are mature. Cut the squash open, remove the pulp and seeds, and rinse off the pulp. Put the mixture in a bowl of water to remove the remaining pulp; the good seeds will sink. Remove the good seeds and spread them out to dry for 2-3 weeks, stirring them at times to make sure they dry completely. Store the seeds in a cool, dry place for up to 4 years.
Detailed Dark Green Zucchini Squash Info: Cucurbita pepo. Annual. 55 days. 140 seeds per oz. 24-36" height. 36-48" spacing. Produces 6-8" dark green zucchini squashes with pale green flesh.