How do I get my grapes to grow larger? They are twice the size of a pea.
Any plant that flowers or fruits benefits from the addition of phosphorus. Bone meal is great for adding phosphorus to the soil.
Our grapevines are pretty old, and this is the first year we noticed what I thought was bird poop on the vines. I rinse it away and it comes back almost instantly. Is this from a bug and is it still safe to eat the grapes?
Sounds like spittle bug problem. Here is an article that you may find helpful: https://www.gardeningknowhow.com/plant-problems/pests/insects/spittlebug-control.htm
My grapevines are not producing any fruit at all. They are at least 4 years old. What's the problem and how can I correct it?
Thanks, Joe
Have you pruned any? Grapes form on new wood. This article should help: https://www.gardeningknowhow.com/edible/fruits/grapes/prune-grape-vine.htm
Your soil could also be lacking phosphorus, which is responsible for flowering/fruiting in plants. A soil test will allow you to know for certain; however, it will not hurt to add some bone meal to the soil around your grapevines to add more phosphorus.
We have some grapevines that when they are shaken many little white insects fly out. How can we treat them with a homemade solution?
Neem oil should take care of them, but here is some more info on them, just in case you wanted to know more: https://www.gardeningknowhow.com/plant-problems/pests/insects/whitefly-control.htm
My grapes are 5 years old and they are very small. I want to know what do I need to grow them bigger?
I would have your soil tested first before adding anything to the soil to improve the quality of the fruit. A soil test will help you determine what is missing from the soil and what you may have too much off. This article on soil testing will help explain more and will also tell you where you can have your soil tested at inexpensively:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
Grapevine pruning?
This article should help: https://www.gardeningknowhow.com/edible/fruits/grapes/prune-grape-vine.htm
You should prune it right down in sep-oct for it to bear fruit in august.
savi
I took loads of grape cuttings last winter ready for a house move that is no longer an issue. Surprisingly, most took to root but are still in pots until we think what to do with them.
Should I put them in the greenhouse for frost protection through the winter months? The cuttings are approx. 4 ft high as I hoped to grow most as standards, but feel they need pruning down a bit. How low should I cut them? If I can find a site in the garden for a row, when should I plant them out?
This article should help with your cuttings: https://www.gardeningknowhow.com/edible/fruits/grapes/rooting-grapevines-tips.htm