• slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
  • slide
Fertilizing-Grape-Vines-THUMB.jpg

Fertilizing Grape Vines

What do you think of Kelp as a fertilizer for grape vine? I’ve got 50 grape vines; St Pipen, St Croix and Foch. What fertilizer is best?

Kelp contains .9% nitrogen, .5% phosphorous and 1 to 4% potassium and has been used for fertilizing ornamental and food crops.  Sea kelp does contain sodium in several forms.  No matter what fertilizer you prefer it is best to start with a soil test.  This will tell you what type and how much fertilizer your grapes need.  Your local University Extension service can provide information on how and where to have your soil tested.  Plus many states are requiring soil tests before you can apply fertilizers containing phosphorous.  If you skip the test consider with a low nitrogen slow release fertilizer like Milorganite.  Most urban soils have high to excess levels of phosphorous and potassium.  So before adding more make sure you need it.  Many books and pamphlets recommend 10-10-10 fertilizers.  The idea is to keep things in balance.  But most plants do not use these nutrients in equal amounts resulting in a build up of phosphorous and potassium in the soil.  So test first for best results.

Related

Upcoming Webinars & Appearances


Feb. 4, 2023
WCBA's Home Building &
Remodeling EXPO

West Bend, Wisconsin

Feb. 8, 2023
WEBINAR: 
Indoor Container Garden Design & Display Ideas 
Register now

Feb. 10-12, 2023

PBS Wisconsin
Garden & Landscape EXPO

Madison, Wisconsin

Feb. 15, 2023
WEBINAR: 
10 Tips for Growing Better Dahlias! 
Register now

Feb. 17-19, 2023

NARI Milwaukee Spring Home Improvement Show
West Allis, Wisconsin

Feb. 22, 2023
WEBINAR: 
Grow Beautiful Water Gardens

Register now

Watch Melinda's past webinars ON DEMAND

Learn More

Book an Appearance

Learn More

Enter to Win this Honey Rose Dahlia Collection with six outstanding dahlias!

ENTER NOW