It is currently Aug 9, 2020 6:10 am 




Click here for the 2020 Gardening topic with hints, experiments,
results, and just plain what's happening in our gardens this year

prior years topics: 2019 2018 2017 2016 2015



Reply to topic  [ 6 posts ] 

Previous topic | Next topic 

  Print view

Offline 
 Post subject: Grapevines
Post Posted: Jun 13, 2019 9:54 am 
Active Pinecam Poster
Active Pinecam Poster
User avatar
Joined: Nov 8, 2005 9:29 am
Posts: 322
Location: AP
We have had great grapevines in our greenhouse for 5 years, but never any fruit - thoughts?


Top
  Profile  
Reply with quote  
Offline 
 Post subject: Re: Grapevines
Post Posted: Jun 13, 2019 11:19 am 
Pinecam Hall of Fame poster!
Pinecam Hall of Fame poster!
User avatar
Joined: May 3, 2002 7:41 am
Posts: 19715
Location: Pine CO at Shaffers Crossing at 8,200 feet
Are your grapevines flowering?


Top
  Profile  
Reply with quote  
Offline 
 Post subject: Re: Grapevines
Post Posted: Jun 13, 2019 11:22 am 
Oh my, Big Time poster!
Oh my, Big Time poster!
User avatar
Joined: Sep 22, 2006 1:48 pm
Posts: 4941
Location: Bailey @ 9000+ ft
I had some unknown grapevine when I moved into my house in golden. Beautiful plant but no fruit.
Until I learned about pruning. Then I got ~100 lb of green seedless grapes every year (from 1 plant)! And that's after sharing with the hoards of squirrels.

In general each year was better and better as I fine tuned my pruning skills. But some years the plant was hit with late frost and/or hail which delayed and reduced yields.

It's ALL about how you prune it.

Grapes varieties for wine need severe pruning
Table grapes need lots of pruning too but not all the way back

Get details on how and when to prune from youtube.

I personally think grapes need LOTS of direct sunlight.
I have not tried growing any in the greenhouse up here, as I doubt the yields would be worth the real estate.

Your best bet is to grow it outdoors and provide protection from critters and hail. There are zone 4 & 5 varieties available.

If it is already a cold hardy variety, then perhaps take some cuttings and start new plants outdoors and see how it goes (with regards to surviving the winter). But it will take several years before the cuttings produce fruit.

Good Luck


Top
  Profile  
Reply with quote  
Offline 
 Post subject: Re: Grapevines
Post Posted: Jun 13, 2019 2:04 pm 
Active Pinecam Poster
Active Pinecam Poster
User avatar
Joined: Nov 8, 2005 9:29 am
Posts: 322
Location: AP
nope, no flowers - thanks for the pruning advice.........


Top
  Profile  
Reply with quote  
Offline 
 Post subject: Re: Grapevines
Post Posted: Jun 13, 2019 2:15 pm 
Pinecam Hall of Fame poster!
Pinecam Hall of Fame poster!
User avatar
Joined: May 3, 2002 7:41 am
Posts: 19715
Location: Pine CO at Shaffers Crossing at 8,200 feet
Grapes normally have very deep roots. Are your plants root bound, perhaps?

SFGate Grapevine Root Systems

Quote:
Grapevines tend to have deeper and less dense root systems than many other plants, so it's important to plant grapes in deep soils whenever possible.

...

About 60 percent of grapevine roots sit in the top 24 inches of soil, but many of the plant roots grow much deeper. Grape roots can grow more 20 feet deep.

...

Most of the root density is closer to the trunk, but a significant amount is sometimes more than three feet away from the trunk. About 15 percent of root biomass is 47 to 59 inches from the trunk.


There's a lot more information in the article about grapevine roots.


Top
  Profile  
Reply with quote  
Offline 
 Post subject: Re: Grapevines
Post Posted: Jun 14, 2019 6:15 am 
Oh my, Big Time poster!
Oh my, Big Time poster!
User avatar
Joined: Sep 22, 2006 1:48 pm
Posts: 4941
Location: Bailey @ 9000+ ft
I knew the root system is massive but WOW I did not know that the roots can go 20ft deep!


Top
  Profile  
Reply with quote  
Display posts from previous:  Sort by  
Reply to topic  [ 6 posts ] 

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:

Who is online

In total there are 69 users online :: 0 registered, 0 hidden and 69 guests (based on users active over the past 60 minutes)
Most users ever online was 2823 on Mar 26, 2012 7:26 pm

Users browsing this forum: No registered users and 69 guests





Powered by phpBB © 2000-2012 phpBB Group

This website copyright © 1994-2020 by
Pinecam.com is a member of the Platte Canyon Area Chamber of Commerce