Oh, sad. Looks like you are growing in raised beds? Being a new gardener, what is your
soil like or what was used to get going this year. You have mulched so that's a good
thing.
Sometimes too much and too little looks alike. Difficult to get to a nice well balanced
level of care, being water or ferts/food.
Looks to me like over-fertilizing. And out of balance what was used. If they were very
healthy looking to grow all that foliage, your soil if a bagged variety, may have had all
you needed for a while. If you have not fed at all since planting, ignore me, lol.
(but some bagged soils do have a slow release fert)
*cute blue weim ...i know that look so well
(we were posting at the same time...)