Black Walnut Tree Poison and Garden Activites Late April to Early May

Did you know that the Black Walnut Tree produces a chemical that is very toxic to some vegetable plants?  I did not know this until I was reading my Gardening Catalog for the month of May.

The trees produce a chemical called "juglone" into the soil up to 50 feet surrounding it.  It will make your tomatoes yellow and possibly causing their death.  Other plants that are affected by this chemical are:

• Eggplant
• Peppers 
• Blackberry 
• Blueberry 
• Apple trees may be injured or killed within one to two months of growth within the root zone of these trees.
• Cabbage
• Potato

Plants that are tolerant of this toxic tree are:

Squashes 

Melons 

Beans 

Carrots 

Corn

The video below shows you how to identify what a Black Walnut Tree looks like.

Garden Activities for the last week of April and into the first 2 weeks of May are:

• April 24 through the 30th, Plant summer bulbs.  It is also National Arbor Day in the USA.
• April 25, It is time to apply some pre-emergent weed control.
• April 27, Spray Fruit Trees after petals fall.
• April 29, Seed your parsley in your gardens.
• May 1, Transplant your onions and plant your fingerling potatoes.
• May 3, is the full moon and legend and lore says that it is good to plant things around this time.
• The week of May 4 through May 9, seed your Lettuce, Winter Squash and Cucumbers, Celery and Sweet Corn.  You can also plant your Tomato seedlings.  Plant your Bok Choy at this time too.

Happy Gardening!

© Debra K. Allen a.k.a Lady Guinevere

I researched and wrote this article. Please do not copy and paste any part of this article, picture included for your own use. I will find you and report you for stealing.  It is my right to change any information therein at any time and/or change the location of my article.