I have a Gunnera in its second year and it's growing to a respectable size. It has also produced a seed spike. Should I cut out the spike to encourage more growth?
You can remove it or even harvest the seeds.
Can i cut back a gunera back during growing season? It has a leaf that is pushing on the window so that i cannt open the window.
I would certainly remove the leaf that is keeping you from opening the window.
This article has more information.
what is eating away at my gunners leaves ? The leaves are coming in deformed and eaten away.
These plants are generally pest free. I would suggest treating the plant with Neem Oil.
Had a Gunnera in a pot for a couple of years now, it is doing ok and is about four feet high and across, it has not flowered yet and has about 6 leaves, the largest is about 16inches. Am thinking of taking it out of the pot and planting it into the ground. Is it okay to do this now or should I wait until March/April? Last year we covered the cown with its leaves in winter, ive been advised to use felt backed carpet? Also would u advise watering it over winter or not? The leaves have brown spots on them, we think this may be dow to the roots not being able to get enough moisture do to the pot? Thanks for reading this Ed
This link will help you with care information.
Leaves are a good insulator of cold temperatures.
In order to maintain a moist soil can it be planted in a shallow area of a pool, or do the roots run too deep?
A Gunnera has a large rhizomatous root system. I would make sure you plant in an area that they have room to spread.
The first two years I had a Gunnera plant it was beautiful and leafs 5 feet across This past growing season it produced three leaves about six inches across. As I am cleaning around the plant I reliza that big lump at the base of the plant is bigger than a basket ball with the texture of wood what is that. I cut it down I don't have photos
It would really help to have some photos, as I am unable to identify what it is by the description. The only other thing I could suggest would be to take a sample, if you still can, to your local extension. They should be able to identify this for you.
Here is a link to help you find your local extension: https://www.gardeningknowhow.com/extension-search/
I have a large Gunnera plant which has been in place for 15 years,it has grown very large and I would like to cut and seperate it to make more plants in large pots,where do I cut for transplanting...wouldnt want to damage or loose my lovely plant.
Transplanting can be difficult. You will need to divide the crown to give a new division the best chance.
Spring would likely be the best time to do this.