Kohlrabi and black radishes might not the most popular veggies at the market, but they're a quick way to make your dishes look more interesting. 

Amelia Tarpey is a program and publicity manger for GrowNYC Greenmarkets. She said Greenmarkets are currently selling kohlrabi for around $3 to $5 a bundle. The price for black radishes will vary depending on which Greenmarket you visit. 

This Halloween, the Union Square Greenmarket will celebrate Dia De Los Muertos with a public ofrenda (or altar) decorated with marigold flowers from Luna Family Farm.  Anyone can bring a photo or a memento to honor a loved one who has died. The ofrenda will be up on Friday at the Union Square Greenmarket until 5p.m.