I put collard plants out 4 weeks ago and now have flowers. How should I prune the plants to produce more greens? The plants are now 14 to 18 inches tall and producing flowers.
When collards produce flowers it is called "bolting." You should cut off the flower stalks as soon as they appear, to keep the plant producing leaves. This article will give you more information: https://www.gardeningknowhow.com/edible/vegetables/greens/growing-collard-greens.htm
The worms ate the plant and I need to plant more.
The date you can plant collards is determined both by your location, and the variety you have. Some cold weather is actually good for collards. Check the seed package and count the days till harvest that it lists. This article has more information: https://www.gardeningknowhow.com/edible/vegetables/greens/growing-collard-greens.htm
Here's more information about those pesky worms: https://www.gardeningknowhow.com/plant-problems/pests/insects/prevent-caterpillars.htm
BTW, you can learn your USDA zone by checking this site: https://www.gardeningknowhow.com/planting-zones/usda-planting-zone-map.htm
I would like to know how can I keep bugs from eating my collard greens. There are small tiny holes in them. Can you tell me something I can use naturally that I have in my home that I can use? Thanking you in advance.
I would recommend using neem oil in the garden for pests as well as any fungal issues that may pop up. It is natural and safe to use. Here is more information, including tips for making your own natural pest control: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/homemade-soap-spray.htm
https://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm
The leaves on most of my veggies turn grey and on the collard greens there are clusters of grey tiny mites. Are they poisonous?
The insects are likely not poisonous, but you should wash and remove them prior to consuming.
Your plants may have Powdery Mildew, Spider Mites, or Mealybugs.
You can treat with Neem Oil, as it works as both an insecticide and fungicide. It is safe for people, pets and bees.
Here are some links for you.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm
https://www.gardeningknowhow.com/edible/vegetables/greens/growing-collard-greens.htm
Do you row them or is it better on flat ground?
Plant collards in rows for even spacing, because each plant needs a specific amount of space. Here's how to grow collard greens:
https://www.gardeningknowhow.com/edible/vegetables/greens/growing-collard-greens.htm
Can you start a collard tree in Sept in zone 7? And is it the same thing as a walking stick tree?
There are several plants known as walking stick tree, one of which is walking stick kale aka Jersey cabbage. The tree collard (Brassica oleracea acephala) is not the same as walking stick kale (Brassica oleracea longata), but they are both varieties of the same species that also includes cabbage, broccoli, ordinary kale, and ordinary collards.
I am not sure about tree collards, but regular collards can be started in fall as described in the following article, so the same is probably true of their taller cousins:
https://www.gardeningknowhow.com/edible/vegetables/greens/growing-collard-greens.htm
what do collard green seeds look like are they in the long bean that appears after blooming?
Yes, the seeds are contained in the pod.
This link has some great info for you.
http://www.darrolshillingburg.com/GardenSite/Collards.html
https://www.gardeningknowhow.com/edible/vegetables/greens/growing-collard-greens.htm