Here is a blog post on growing and harvesting borlotti beans. Borlotti beans are very much found in Mediterranean cuisines. It’s also sold in supermarkets as well. Though homegrown is always taste much better. It’s used in soups, add to salads or cook as a side dish.
To grow them is the same way like most beans. The only difference in growing conditions is that they need a much longer growing time or best growing in a greenhouse.
Growing and harvesting borlotti beans
They grow easily from seeds. Buy them online or from garden centres. While it is possible to sow from dried beans that are found from supermarkets. One can’t be sure if it’s been chemically treated so as to prolong the shelf life. I have sprouted beans from supermarket bought ones and they grow well. However, there is some that don’t sprout at all. It is also cheaper in price the supermarket ones compare to garden centres ones.
Once the seedlings are seen plant them out when the risk of frost is over. Or grow them indoors in a sunny spot like a conservatory or greenhouse. Otherwise, the growing conditions is like growing runner beans. Here is the link.
Give it some fence or support for the borlotti bean to climb one. Once the plant matures it will start flowering. Once pollinated it will turn to form bean pods. It will need some warm and sunny weather for the beans to mature. Plus some fertiliser as well. I didn’t give them much fertiliser but grow it manure well drain compost in a sunny spot instead.
Borlotti beans don’t regrow themselves. Therefore seeds will need to be sown again the following year. Come autumn with the first sign of frost the plant leaves turns yellow and slowly dies off.
Once the seed in the pod matures seen by the beans getting bigger in the pod. Also the skin on the pod starts to thin out as well.
Also as the beans mature the signature borlotti beans mark becomes more prominent. This is seen on the beans harvested in the pods for young beans there wouldn’t be many marks.