What a disappointment! It sounds like blossom end rot, resulting from uneven moisture. See here for more information: https://www.almanac.com/plant/squash-and-zucchini This is often a result of improper pH levels. Get an inexpensive kit (more here https://www.almanac.com/blog/gardening/garden-journal/soil-testing-better-garden ) or contact your local cooperative extension about having a more thorough test; find you coop service here: https://www.almanac.com/search/site/cooperative%20extension
And there’s this: are you rotating the plants in the beds, not planting the same thing in the same soil every year? Change the place you plant every year. Here’s some advice on that: https://www.almanac.com/video/how-rotate-your-vegetable-crops
And it might not be a bad idea to mix in some fresh compost every spring. We hope this helps and the zukes are beautiful this year.
What a disappointment! It sounds like blossom end rot, resulting from uneven moisture. See here for more information: https://www.almanac.com/plant/squash-and-zucchini This is often a result of improper pH levels. Get an inexpensive kit (more here https://www.almanac.com/blog/gardening/garden-journal/soil-testing-better-garden ) or contact your local cooperative extension about having a more thorough test; find you coop service here: https://www.almanac.com/search/site/cooperative%20extension
And there’s this: are you rotating the plants in the beds, not planting the same thing in the same soil every year? Change the place you plant every year. Here’s some advice on that: https://www.almanac.com/video/how-rotate-your-vegetable-crops
And it might not be a bad idea to mix in some fresh compost every spring. We hope this helps and the zukes are beautiful this year.